Agenda packet — Coronado City Council, December 12, 2023

A G E N D A
CITY OF CORONADO CITY COUNCIL/
THE CITY OF CORONADO ACTING AS THE SUCCESSOR AGENCY TO THE COMMUNITY DEVELOPMENT AGENCY OF THE CITY OF CORONADO
Tuesday, December 12, 2023
Coronado City Hall Council Chamber
1825 Strand Way
Coronado, California 92118
CLOSED SESSION SPECIAL MEETING – 2:30 P.M.

REGULAR MEETING – 4:00 P.M.

In compliance with the Americans with Disabilities Act (ADA), if you need special assistance to participate in a City meeting or other services offered by this City, please contact the City Clerk’s office, (619) 522 7320. Assisted listening devices are available at this meeting. Ask the City Clerk if you desire to use this device. Upon request, the agenda and documents in the agenda packet can be made available in appropriate alternative formats to persons with a disability. Notification of at least 48 hours prior to the meeting or time when services are needed will assist the City staff in assuring that reasonable arrangements can be made to provide accessibility to the meeting or service.

CALIFORNIA ENVIRONMENTAL QUALITY ACT
The California Environmental Quality Act (“CEQA”) is the state law that requires the City to evaluate and document the potential environmental consequences of discretionary decision. (See, California Public Resources Code Sections 2100021189.3; and the “CEQA Guidelines” at California Code of Regulations Title 14, Division 6, Chapter 3, Sections 1500015387). For each item that requires a CEQA determination by the City Council, there is a reference to that determination on this agenda, and more information regarding the CEQA analysis is included in the documents that accompany this agenda. To the extent that City staff determines that particular items are not subject to CEQA, there will be no indication of a CEQA action on this agenda.

CLOSED SESSION SPECIAL MEETING – 2:30 P.M.

1. CALL TO ORDER/ROLL CALL

2. ANNOUNCEMENT OF CLOSED SESSION

3. PUBLIC EMPLOYEE
Pursuant to Government Code section 54957
a. Annual Performance Evaluation of the City Manager
b. Annual Performance Evaluation of the City Attorney
City of Coronado Page 1
CLOSED SESSION SPECIAL MEETING – 2:30 P.M.

1. CALL TO ORDER/ROLL CALL

2. ANNOUNCEMENT OF CLOSED SESSION

3. PUBLIC EMPLOYEE
Pursuant to Government Code section 54957
a. Annual Performance Evaluation of the City Manager
b. Annual Performance Evaluation of the City Attorney

4. COMMUNICATIONS ORAL:

Each person wishing to speak before the City Council on only matters listed on this agenda shall approach the City Council, give their name, and limit comments to three (3) minutes. Members of the public may also submit written comments on the City’s website, via email or request to provide live public comment via Zoom during the meeting. Requests for live public comment via Zoom must be made at least 24 hours in advance of the meeting. Please contact the City Clerk at (619) 5227321 or [email protected] for more information.

5. ADJOURN TO CLOSED SESSION
RECONVENE AND ANNOUNCE ACTION
SPECIAL WORKSHOP – 4:00 P.M.

1. CALL TO ORDER / ROLL CALL

2. INVOCATION AND PLEDGE OF ALLEGIANCE

3. COMMUNICATIONS ORAL:

Public comments on a special meeting agenda are limited to items on the special meeting agenda notice and will be heard during consideration of that item (Government Code Section 54954.3(a)).

4. PUBLIC HEARINGS: None.

5. CITY COUNCIL:
a. CITY COUNCIL WORKSHOP: WINN ROOM RENOVATION PROJECT – CITY COUNCIL WINN ROOM SUBCOMMITTEE REPORT
Recommendation: Receive an update from the City Council Winn Room Subcommittee and provide feedback.

6. CITY ATTORNEY

7. COMMUNICATIONS WRITTEN: None.

8. ADJOURNMENT
A COPY OF THE AGENDA WITH THE BACKGROUND MATERIAL IS AVAILABLE FOR PUBLIC INSPECTION IN THE OFFICE OF THE CITY CLERK AT CITY HALL, AT THE PUBLIC LIBRARY, OR ON OUR WEBSITE AT www.coronado.ca.us
City of Coronado Page 2
Recommendation: Receive an update from the City Council Winn Room Subcommittee and provide feedback.

6. CITY ATTORNEY

7. COMMUNICATIONS WRITTEN: None.

8. ADJOURNMENT
A COPY OF THE AGENDA WITH THE BACKGROUND MATERIAL IS AVAILABLE FOR PUBLIC INSPECTION IN THE OFFICE OF THE CITY CLERK AT CITY HALL, AT THE PUBLIC LIBRARY, OR ON OUR WEBSITE AT www.coronado.ca.us
Writings and documents regarding an agenda item on an open session meeting, received after official posting and distributed to the Council for consideration, will be made available for public viewing at the City Clerk’s Office at City Hall, 1825 Strand Way, during normal business hours.

Materials submitted for consideration should be forwarded to the City Clerk’s Office at [email protected].

City of Coronado Page 3

CITY COUNCIL STAFF REPORT
December 12, 2023 5a
CITY COUNCIL WORKSHOP: WINN ROOM RENOVATION PROJECT – CITY COUNCIL WINN

ROOM SUBCOMMITTEE REPORT
RECOMMENDATION:

Receive an update from the City Council Winn Room Subcommittee and provide feedback.

BACKGROUND:

The Winn Room at the Coronado Library is highly utilized by many organizations. Originally constructed in 1973, the Winn Room has received only minimal renovations since its construction.

Community groups and other users who use the space have voiced concerns that the room is outdated and requires audiovisual and information technology upgrades, improved lighting and acoustics, and should be enlarged to accommodate more occupants for larger events. In addition, the HVAC system, roof, electrical, chairs and restrooms all require replacement or significant updating. Current seating capacity of the Winn Room is 135 within 1,680 square feet of programmable space.

Prior City Council Direction
City Council authorized an agreement with M. W. Steele Group, Inc. in January 2020 to develop a feasibility study regarding design options and associated cost estimates ranging from basic/low, middle/medium, and “visionary”/high for the Winn Room renovation.

On June 3, 2020, a community stakeholder meeting was held and they discussed the shortcomings of the existing space and the desired improvements. Recommendations for the building’s exterior design suggested that the building should:
• Be in alignment with the ambiance of the community as a whole and not so visually extravagant as to overshadow the existing Library and Park context. • Fit in organically with the architecture of the existing Library building and respect the historic frontage of the original Spreckels Reading Room as a key element. • Create a design that not only preserves North Spreckels Park and Memorial Garden but incorporates the improved design as part of the Winn Room renovation to activate the outdoor space in a community-pleasing and functional manner.

The community stakeholder group started with five concepts and eliminated a number of options and features. On November 17, 2020, the Council approved the community stakeholder group to solicit broad-based community input via public outreach and revisit the cost estimates for opportunities to reduce the total project budget. Subsequently, on March 24, 2021, two refined concepts were presented based upon stakeholder and community outreach feedback at an open public outreach town hall meeting via Zoom. The majority supported the Option B design concept version that steps into the park.

City of Coronado Page 4
On May 4, 2021, Library and Public Services & Engineering staff presented the results of the community outreach data to the City Council with a request to proceed with the schematic design phase for Option B. The City Council redirected staff to perform a needs assessment that clearly defines the types of uses and spaces needed in the community and an analysis of the community’s current meeting and performance space types and utilization.

On July 20, 2021, the Winn Room Subcommittee was created by the City Council to direct staff to create an Ad Hoc Subcommittee composed of Councilmember Heinze and Councilmember Tanaka, members from the Library and Public Services & Engineering (PSE) staff, and community stakeholders to provide guidance on a needs assessment and recommended remodel of the Winn Room; and if additional concept drawings are necessary, authorize the City Manager to contract with M. W. Steele group to create additional plans.

ANALYSIS:

The Winn Room City Council Subcommittee first convened on August 24, 2021 and has met a total of nine times. Attachment 1 summarizes the meetings and actions of the subcommittee. In December 2022, Councilmember Downey was appointed to the seat vacated by outgoing Councilmember Heinze.

The subcommittee conducted a thorough needs assessment of the Winn Room in partnership with staff, including representatives from the City Manager’s Office and Public Services & Engineering, Library Services and Recreation & Golf Services Departments. The needs assessment looked at the Winn Room and other available spaces with similar capacities to accommodate groups of 140 or more and use trends of City facilities that could accommodate those groups. The Committee recieved options for City investment to meet the current and future needs of our community.

While there are numerous public and private venues within Coronado that can accommodate groups of 140 or more, only three are within the direct control of the City: the Spreckels Center Grand Room, the Community Center Nautilus Room, and the Winn Room. A full list of public and private rental venues within Coronado is included in Attachment 3.

City of Coronado Page 5
Winn Room Usage
The subcommittee looked at the usage of the Winn Room and what types of events are not able to be accommodated due to the size and Audio/Visual (A/V) limitations of the room. Attachment 2 contains an analysis of the current Winn Room use from May 2022 – April 2023. During that period, the Winn Room hosted approximately 420 events with 15,000 total attendees (11,600 from library staff and partnership events; 3,300 from community groups). There were 12 additional library events held off-site with 4,400 total attendees due to scheduling conflicts or space constraints of the Winn Room.

Usage of Other City-Owned Venues
The needs assessment also included an analysis of current City facility rental room capacities and usage, such as the Nautilus Room, JDSC Grand Room and Boathouse. It included usage by residents and non-residents, current cost recovery of those facilities, and how greater use of alternative rooms may impact the City’s rental revenues. The full analysis is included as Attachment 4.

The analysis shows there is an opportunity to move some programming from the Winn Room to the Nautilus Room during weekdays, as long as the events are not performance-related due to the less optimal acoustic conditions present in the Nautilus Room. The JDSC Grand Room had availability on weekend evenings; however, Recreation & Golf Services staff have recently added programming on Saturdays to the Grand Room to more fully serve the 50+ and senior community.

There is also community recognition of the Library as a valued gathering space within Coronado, providing a no cost option for community groups and enrichment programming for the arts that does not currently compete with other revenue generating room facility rentals.

Winn Room Design Options
In addition to the needs assessment the subcommittee developed and analyzed Winn Room remodel options. The following options were fully explored, with cost estimates developed for each1:

Winn Room Remodel Plan Options1 Cost Estimate
(Millions)
Option 1: Interior Upgrades $3.28
Option 2: Interior Upgrades and Elevate Ceiling $4.15
Option 3: Internal Expansion $6.44
Option 4: Larger Expansion (Original Concept B) $9.72
1 A fifth option was also explored, contemplating upgrades to the Grand Room at the Spreckels Center. Project costs were estimated at $1.72 million. Upon further analysis of the increasing usage of the Spreckels Center, the desire to continue to expand programming for the senior community, and in consideration of the subcommittee’s chief purpose to explore the Winn Room remodel, the option to renovate the Grand Room is considered ancillary.

Option 1 includes significant interior upgrades within the existing Winn Room footprint of 1,680 square feet. Option 2 raises the ceiling of the Winn Room and includes the interior upgrades outlined within Option 1 with no increase in square footage. Option 3 increases the size of the Winn Room to 2,316 square feet, raises the ceiling and slightly expands the footprint of the facility.

Option 4 increases the size of the Winn Room to 2,931 square feet, raises the ceiling and expands City of Coronado Page 6
the footprint of the facility with an optional outdoor deck.

A full comparison of costs, amenities and features is included in Attachment 5. Estimated costs include furniture, fixtures and equipment such as A/V systems.

In addition to the overall project costs, below is a summary of costs on a per seat and per square foot basis:

Option 1
Interior
Upgrades
Option 2
Interior
Upgrades and
Elevate Ceiling
Option 3
Internal
Expansion
Option 4
Larger
Expansion
Seating Capacity
(code minimum) 135 135 180 208
Price Per Seat $24,349 $30,806 $35,799 $46,777
Square Footage
1,680 1,680 2,316 2,931
Price Per Square
Foot $1,957 $2,475 $2,782 $3,320
Acoustical Environment and Screen Visibility
A study was conducted that provided a comparative analysis of the acoustical properties and the degree of visibility for event participants for each design option. The overarching design goal for the renovation of the Winn Room is to provide a well-controlled acoustical environment that would allow for good speech intelligibility and clarity for playback sources including music, and at least a neutral acoustic environment. For musical performances, it is important to control the acoustic energy in the room with sound absorption panels without making the room too acoustically dry or dead. A copy of the acoustics and visibility study is included in Attachment 6.

In general, the Winn Room remodel options will create an environment more suitable for live presentations, performances and interactive functions and gatherings. It will be possible but not optimal for cinema events. The primary issue is the difficulty in providing theater-caliber screen size due to the room’s architecture.

The acoustical engineering consultant ranked each of the four renovation options based on their ability to meet the acoustic goals as outlined above.

The results, in descending order, from best to least favorable, are as follows:

Option 4: Larger Expansion
Option 3: Internal Expansion
Option 2: Interior Upgrades and elevate ceiling
Option 1: Interior Upgrades
City of Coronado Page 7
Screen visibility was also analyzed to ascertain the viewing experience from the rear row. The results in descending order, from best to least favorable, are as follows:

Room Option Percentage of Screen Visibility
from rear row (staggered*)
Option 4: Larger Expansion (Concept B) 100%
Option 3: Internal Expansion 95%
Option 2: Interior Upgrades and Elevate the Ceiling 90% Option 1: Interior Upgrades 35%
*Staggered seating alternates chair alignment, allowing patrons improved sightlines in front of them.

At the December 12, 2023 Special City Council meeting, the subcommittee and staff will review the body of work accomplished by the subcommittee, including the needs assessment, existing City facility use and the four remodel options.

FISCAL IMPACT:

Cost estimates range from $3.28 – 9.72 million depending upon the plan option and associated amenities chosen for integration into the project. Costs to date for design development/architectural services and acoustics analysis are $92,158 and are budgeted in account 40070000–97320–19005. Depending upon direction from City Council, staff will ensure that any renovation project supported for the Winn Room will be coordinated with HVAC/roof repairs currently slated for the Winn Room in the Fiscal Year 2023/24 CIP to ensure that duplicative costs are minimized or eliminated.

ALTERNATIVE:

The City Council could direct staff to research additional planning options and/or provide additional direction on the renovation of the Winn Room.

CALIFORNIA ENVIRONMENTAL QUALITY ACT:

Once design options preferences have been identified, environmental review will be conducted.

PUBLIC NOTICE:

No notice required.

ATTACHMENTS:

1. Summary of Current City Council Winn Room Subcommittee Meetings

2. Winn Room Usage Summary May 2022 – April 2023

3. a. Citywide Facilities Use Data
b. Condensed Facilities Use Data

4. Recreation Room Comparison & Usage Summary May 2022 – April 2023

5. PowerPoint with Remodel Plan Options and Cost Estimates

6. Projection Screen and Acoustics Study
Submitted By: City Manager's Office / Tony Winney, Assistant City Manager City of Coronado Page 8
Summary of Current City Council Winn Room Subcommittee Meetings The Winn Room Subcommittee first convened on August 24, 2021 and has met a total of nine times. The following table summarizes the meetings and actions.

Meeting Date Action
Aug 24, 2021 Members Tanaka and Heinze discussed scope of Committee.

Request Citywide Facility Assessment for review prior to reconvening.

Jan 11, 2022 Members reviewed Citywide Facilities Data prepared by staff. For next meeting requested:

1. Obtain more specific usage data for 5 City facilities:
a. Winn Room
b. Grand Room
c. Nautilus Room
d. Playhouse
e. Boathouse

2. Provide modest list of Winn Room improvements necessary to bring it from outdated 1970s to current 2022.

3. Provide list of policy changes necessary to accommodate library programs and goals within scope of City venues. For example, for the Library to manage Grand Room bookings.

Feb 22, 2022 Members reviewed data provided requested at Jan 11th meeting (Attachment 2). For next meeting, requested cost estimates for 4 options:

1. Winn Room Only Upgrade without moving walls

2. Winn Room Raise Ceiling/Roof including the interior upgrades in item 1

3. John D. Spreckels Center Grand Room AV Upgrade

4. Winn Room Expansion: Select one of the two options already developed and update cost estimate.

April 21, 2022 Members review cost estimates of 4 options. For next meeting, request staff to prepare information that will be taken to Council regarding the 4 options.

1. Description of each option explaining the merits of each i.e. what experience is improved, what will we accomplish if we make these changes?

2. Include details like the size of the space, how many seats?

3. Include a graphic or sketch to help illustrate.

4. Include cost estimates.

May 26, 2022 Reviewed summaries of 4 options:

1. Winn Room Only Upgrade without moving walls
Attachment 1
City of Coronado Page 9

2. Winn Room Raise Ceiling including the interior upgrades in item 1 (no need to raise roof, only ceiling)

3. John D. Spreckels Center Grand Room A/V Upgrades only

4. Winn Room Expansion: Concept B used.

For next meeting, draft staff report for Ad Hoc Subcommittee Councilmember review prior to Council meeting.

Sept 27, 2022 A meeting was held to discuss the potential for adding an Option 5, a reduced cost expansion concept. Members requested
information and analysis on current rental rooms (incl. capacities, usage, and cost recovery rates) and comparisons of the five room options (incl. acoustics, A/V, furniture and fixtures.

May 10, 2023 Committee members reviewed additional plan Option 5, and room usage and comparison data, and requested additional updates to plans. Also discussed future public outreach to ensure participation moving forward.

October 11,
2023
Reviewed updated cost estimates and requested updates for the five plan options, reviewed revised room comparison data.

November 13,
2023
Committee reviewed draft agenda report to City Council and discussed scheduling of public workshop.

Attachment 1
City of Coronado Page 10
Winn Room Usage Data
May 1, 2022 – April 30, 2023
Usage by Audience Number of Events Attendance
Adults 179 6,900
All Ages 31 1,200
Children 24 925
Teen 56 700
Community Groups 123 3,300
Usage by Top
Attendance
Number of Events Attendance
Author Events 24 3,200
Musical Performances 106 2,700
Lecture/Demonstrations 36 1,300
Film 36 900
Civic Engagement 16 530
5/1/2022-4/30/2023 Overview
 Roughly 420 events
 About 15,000 total attendees (11,600 from library staff and partnership events, 3,300 from community groups)
 12 events held offsite with 4,400 total attendees
3 Events Totaling More Than 1,200 attendees
 Lessons in Chemistry Author Event with Bonnie Garmus
o 520 attendees
 Kristin Hannah Live in Conversation with Susan Elizabeth Phillips o 570 attendees
 Bestselling Author Jack Carr In-Person
o 142 attendees
Attachment 2
City of Coronado Page 11
Facility Name/Managed By Address Managed/Owned
Max Seating
Capacity
Square
Footage Stage
Built in
Screen Availability / Hours
Min Booking
Leadtime 2019 Usage Per Hour
Donate to
non-profits?
City Facilities
The Winn Room | Library 640 Orange Avenue City of Coronado/Public Library 135 1,680 N Y Library Hours, limited by some library events High Free Yes The Ruby Room | Library 640 Orange Avenue City of Coronado/Public Library 28 513 N N Library Hours, often in use for childrens library progams High Free Yes The Library Conference Room | Library 640 Orange Avenue City of Coronado/Public Library 12 306 N Y Library Hours Moderate Free Yes Coronado Playhouse | Recreation 1845 Strand Way City of Coronado/Recreation 96 1,700 Y N Not normally available N/A High $225-$650 Reduced Cost The Nautilus Room | Recreation 1845 Strand Way City of Coronado/Recreation 446 4,950 Y Y All days and evenings till 11pm 14M (NR)/ 24M (R) High $75 - 500 Reduced Cost Rec Center Activity Rooms | Rec 1845 Strand Way City of Coronado/Recreation 40 1,500 N N Evenings and weekends 14M (NR)/ 24M (R) High $10-50 Reduced Cost Boathouse Clubroom | Recreation 1985 Strand Way City of Coronado/Recreation 84 1,200 N N Most days and evenings, some City usage 14M (NR)/ 24M (R) High $50-225 Reduced Cost Spreckels Center Grand Room | Recreation 1019 Seventh Street City of Coronado/Recreation 176 1,966 N Y Evenings and weekends, some weekdays avail 14M (NR)/ 24M (R) Low $75-410 Reduced Cost Feast & Fairway (Coronado Golf Course) | Recreation 2000 Visalia Row City of Coronado/Recreation 175 w/tables 3,225 N N All days/weekends, to 2am 24M High Varies Case by case Coronado Tennis Club Room | Recreation 1501 Glorietta Blvd. City of Coronado/Recreation 25 600 N N All days/evenings 14M (NR)/ 24M (R) Low $25-60 Reduced Cost Churches
Sacred Heart 655 C Avenue Catholic Diocese of San Diego 400 6am-9pm when not in use by church Expensive Case by case St. Paul's United Methodist 700 D Ave St. Paul's Methodist 200 6am -9pm when not in use by church Expensive Case by case Commercial / Non-profit Venues
Lamb's Player's Theatre 1142 Orange Ave Lamb's Player Theatre 350 Y 6am - 11:30pm Varies by season High Expensive Case by Case Vintage Village Theater 820 Orange Ave Vintage Cinema 215 Y Y 6am - 11:30pm Varies by season High Expensive Case by Case Coronado Historical Association Lecture Hall 1100 Orange Ave CHA 90 Most days/evenings Varies by season Moderate $75-100 Yes Coronado Yacht Club 1631 Strand Way Coronado Yacht Club 175 ~2,000 N N Members only, Not avail Weds/Fri evenings, weekend
varies by day Varies by season High $150-1000 Case by Case Coronado Cays Yacht Club 30 Caribe Cay Blvd Coronado Cays Yacht Club Residents Only Varies by season Grand Caribe Room (Cays) Multiple Cays HOA 150 All days until 10pm Varies by season Sharp Coronado - Sandermann Education Center 265 Soledad Place Sharp Coronado 40 Most days/evenings; some use by Sharp Varies by season Moderate $ Case by case 100 Masonic Lodge 529 Orange Ave Masons Varies by season High $ Reduced cost 200 Schools
Coronado Performing Arts Center 650 D Ave Coronado Unified School District 570 2,957 Y Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks High $ Reduced cost 200 CHS Blackbox 650 D Ave Coronado Unified School District 120 N Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks $ Reduced cost 100 CHS Multi-Purpose Room 650 D Ave Coronado Unified School District 452 3,312 N Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks Moderate $ Reduced cost 82 CHS Gym 650 D Ave Coronado Unified School District 10,624 N N Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks $ Reduced cost 280 CMS Granzer Hall 550 F Ave Coronado Unified School District 595 6,154 Y Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks High $ Reduced cost 82 Village Hall 600 Sixth St Coronado Unified School District 678 5,777 Y Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks Reduced cost Strand Hall 1350 Leyte Rd Coronado Unified School District 7,620 Y Y Weekdays 3-9 and Weekends when not in use by CUSD 2 Weeks Reduced cost Board Room 201 Sixth St Coronado Unified School District 1,650 N N Weekdays 5-9 and Weekends when not in use by CUSD 2 Weeks Reduced cost Hotels
1906 Lodge Banquet Space 1060 Adella Ave 1906 Lodge 20 348 N N All days/weekends 11am-8pm Varies by season Moderate Case by case 1906 Lodge Meeting Space 1061 Adella Ave 1906 Lodge 34 420 N Y All days/weekends 11am-8pm Varies by season Moderate Case by case Loews-Avalon Room 4000 Coronado Bay Road Loews Hotels 160 3,000 All days/weekends Varies by season Expensive No Loews-Constellation Ballroom 4000 Coronado Bay Road Loews Hotels 500 5,162 All days/weekends Varies by season Expensive No Loews Commodore Ballroom 4000 Coronado Bay Road Loews Hotels 1500 13,764 All days/weekends Varies by season Expensive No Loews-Medium Rooms (2) 4000 Coronado Bay Road Loews Hotels 100 1,044 All days/weekends Varies by season Expensive No Loews-Small Rooms (3) 4000 Coronado Bay Road Loews Hotels 30 800 All days/weekends Varies by season Expensive No Hotel del Coronado-Coronet Room 1500 Orange Ave Hilton 182 3,705 N N All days/weekends Varies by season Expensive No Hotel del Coronado-Carousel Room 1500 Orange Ave Hilton 300 6,241 N N All days/weekends Varies by season Expensive No Hotel del Coronado- Ocean Ballroom 1500 Orange Ave Hilton 950 12,600 Y N All days/weekends Varies by season Expensive No Hotel del Coronado-Crown Room 1500 Orange Ave Hilton 1088 9,300 N N All days/weekends Varies by season Expensive No Hotel del Coronado-Medium Rooms (6) 1500 Orange Ave Hilton 150 1,600 N N All days/weekends Varies by season Expensive No Hotel del Coronado-Small Rooms (5) 1500 Orange Ave Hilton 50 400 N N All days/weekends Varies by season Expensive No Marriott-Tidelands Ballroom 2000 Second Street Marriott 150 1,680 All days/weekends Varies by season Expensive No Marriott- Coronado Ballroom 2000 Second Street Marriott 800 7,455 All days/weekends Varies by season Expensive No Marriott-Small Rooms (9) 2000 Second Street Marriott 50 700 All days/weekends Varies by season Expensive No El Cordova Conference Room 1351 Orange Ave El Cordova 30 700 N Y All days/weekends 11am-8pm Varies by season Vaires Case by case Attachment 3a
City of Coronado Page 12
Facility Name
Max Seating
per Code
Max Seating
Capacity the
Space Fits Square Footage Stage
Built-in
Screen Notes
City Facilities
The Winn Room 240 135 1,680 N Y
The Nautilus Room 700 446 4,950 N Y Poor acoustics, heavy private use, availability not flexible Spreckels Grand Room 280 176 1,966 N Y Most flexible option, small capacity gain of 26-36 seats Feast & Fairway (Coronado Golf Course) 325 175 w tbls 3,225 N N Split areas, space allocated for public, buyout necessary for full capacity Churches
Sacred Heart 400
St. Paul's United Methodist 200
Commercial/Non-Profit
Lamb's Player's Theatre 350 Y
Vintage Village Theatre 215 Y Y
Coronado Yacht Club 150 ~2000 N N
Schools
Coronado Performing Arts Center 570 2957 Y Y Limited availability, restricted MOU CHS Blackbox 120 N Y Same as above, same size as Winn Room No weekends, religious restrictions.

Limited availablity, no MOU in place.

Attachment 3b
City of Coronado Page 13
Revised for October 11, 2023 Meeting
1 Recreation Room Comparison & Usage Summary
Data covering May 2022 – April 2023 for Nautilus, Grand and Club Rooms Analysis of current rental rooms, including capacities and usage for Nautilus, Spreckels, Grand Room and Boathouse Club Room with data on Coronado residents’ usage.

Facility Users
Entity Percent of Bookings
City of Coronado (internal use) 38%
Nonprofit Groups 21%
Residents 12%
Nonresidents 29%
The data does not factor in Recreation program use or participation. There are over 5,336 participants in Recreation programs using the facilities, including over 2,357 participants at the Spreckels Center.

Availability Trends for Nautilus, Grand and Club Rooms
Nautilus
Room
(max
seating:
446)
Grand
Room
(max
seating:
176)
Club
Room
(max
seating:
84)
Mon. a.m. Mon. a.m. Mon. a.m.

Mon eve Mon. eve Mon. eve
Tues. a.m. Tues. a.m. Tues. a.m.

Tues. eve Tues. eve Tues. eve
Wed. a.m. Wed. a.m. Wed. a.m.

Wed. eve Wed. eve Wed. eve
Thur. a.m. Thur. a.m. Thur. a.m.

Thur. eve Thur. eve Thur. eve
Fri. a.m. Fri. a.m. Fri. a.m.

Fri. eve Fri. eve Fri. eve
Sat. a.m. Sat. a.m. Sat. a.m.

Sat. eve Sat. eve Sat. eve
Sun. a.m. Sun. a.m. Sun. a.m.

Sun. eve Sun. eve Sun. eve
Legend: Gray = mostly unavailable; Green = mostly available.

Attachment 4
City of Coronado Page 14
Revised for October 11, 2023 Meeting
2 Current cost recovery, and how greater use of alternative rooms may impact the City’s revenues. Review the City’s Facility Use/Fee Policy for potential conflicts in joint uses and/or offering certain rooms for free to groups currently allocated to Winn Room.  The Recreation and Golf Services Department generated over $216,000 in total rental revenue with over $167,000 from the Nautilus Room.  Resident rental revenue equals 25% of total revenue.
 Non-resident rental revenue equals 67% of total revenue.  Non-profit rental revenue equals 8% of total revenue.

The City’s Facility Use Policy for Recreation facilities identifies a number of requirements for use of Recreation facilities which does not align with the Library’s current practices of booking the Winn Room for events and programs. These are listed below.
 Recreation programs must share schedule in facility rooms  Application Fee for Use and Security and Cleaning Deposits  Classifications of Users
 Special interest group considerations
 Liability Insurance
 Staff services fee
 A/V equipment fee
 Additional set up fee
 Security Guard
Summary
There is an opportunity to move programming from the Winn Room to the Nautilus Room during weekdays, as long as the events are not performance-related that heavily rely on acoustics due to the poor acoustics conditions present in the Nautilus Room.

The Grand Room can be more fully utilized on weekend evenings. Recreation and Golf Services staff will add future programming on Saturday days to the Spreckels Center that can more fully serve the 50+ and senior community.

The Club Room is a smaller space, but generally available on weekends for additional programming.

Due to the Winn Room being the only “free” City community room, moving programming would necessitate a discussion how to offset City costs of operations at the other three rooms, which charge for rentals for cost recovery.

Attachment 4
City of Coronado Page 15
Revised for October 11, 2023 Meeting
3 The following sections provide the raw usage and cost recovery data that supported the foregoing discussion and conclusions.

Data Provided: Usage Data
USAGE DATA Total Event
Bookings
Average
Booking Lead
Time
Total
Attendance
Total
Revenue
Resident 59 192 5,669 $53,397
NonResident/Commercial146 141 13,160 $145,381
City/Schools 190 80 8,981 $126
Non-Profit
(Youth/Group)
105 158 6,148 $17,923
TOTAL 500 127 33,958 $216,826
FACILITY Resident NonResident/
Commercial
City /
Schools
Non-Profit Total
Club Room 15 47 36 5 103
Abalone Room 4 19 22 11 56
Coral Dance 3 3
Nautilus-Full 27 51 39 14 131
Nautilus-Side A 5 13 11 50 79
Nautilus-Side B 4 1 24 3 32
Sand Dollar 2 12 15 12 41
JDSC Activity 8 8
JDSC Grand Room 2 3 25 5 35
Total 59 146 180 103 488

FACILITY

BOOKINGS

BY DAY (ALL

RECREATION

FACILITIES)
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Total
Bookings
26 50 55 101 81 130 57
Average
Bookings Per
Week

0.50 week

0.96 week

1.06 week 1.94
week

1.56 week

2.50 week

1.10 week
Attachment 4
City of Coronado Page 16
Revised for October 11, 2023 Meeting
4  Average Booking Lead Time is 127 days
 80 days for City/Schools (avg. event duration = 6.1 hours) 1,159 hours  158 days for Non-Profits (avg. event duration = 3.7 hours) 389 hours  192 days for Residents (avg. event duration = 5.4 hours) 319 hours  141 days for Non-Residents/Commercial (avg. event duration = 5.3 hours) 774 hours
 Total Attendance is 33,958
 City/Schools = 8,981
 Non Profits = 6,148
 Residents = 5,669
 Non Residents/Commercial = 13,160
 Not reflected in the tables are City Programs, which account for 5,336 registrants using the facilities, with 2,357 coming from JDSC.

Data Provided: Revenue Data
 Total of $216,826 in rental revenue for May 22-Apr 23 with majority (~$167k) from Nautilus Room.
 Total of $145,381 in rental revenue from Non-Residents and Commercial uses.  Total of $17,923 from Non-Profits (Youth and other)
 Total of $53,397 from Residents
Grand Room is used primarily the following days/times for programming:

Mondays: 9am-7pm
Tuesdays: 9am-7pm
Wednesdays: 9am-7pm
Thursdays: 9am-7pm
Fridays: 9am-4pm
Saturdays: 9am-12pm
Most available time for Grand Room:

Friday evenings
Saturday afternoons/evenings
Sunday all day
2,357 participants at JDSC during the timeframe of May 2022 – April 2023 (Senior Fitness, Strength Balance & Flexibility, Bingo, Tai Chi, Zumba Gold, Line Dancing, Restorative Yoga, Chair Yoga programs, Bodyweight Basics for Core Strength, Presentations from Medical Providers, Special Events, Tech Tutoring, Bridge, Armchair Travel)
Attachment 4
City of Coronado Page 17

DESIGN OPTIONS
Winn Room Renovation
City Council Special Meeting
December 12, 2023
Attachment 5
City of Coronado Page 18
2 • Internal Expansion
OPTION 4
• Larger Expansion
Grand Room ALTERNATE OPTION
• JDSC Grand Room with Audio Visual
Upgrades Only
OPTION 1
Winn Room Design Options Summary
City of Coronado | Winn Room
• Interior Upgrades
OPTION 2
• Interior Upgrades and Elevate the
Ceiling
OPTION 3
Attachment 5
City of Coronado Page 19
WINN ROOM INTERIOR DIMENSIONS: 47’-4” X 35’-5”
SEATING AREA: 1680 Square Feet
STAGGERED SEATS: 135
SEAT DIMENSION: 20-1/8” WIDE x 22-3/8” DEEP
16-1/4" CODE MIN. BETWEEN SEATS
NO CENTER AISLE; 13 or 14 seats per row
CEILING HEIGHT: 9’-11”
SCREEN DIMENSIONS: 7’ X 12’
OPTIMAL/MARGINAL/NOT RECOMMENDED SEATS: 129 / 6 / 0
 35% OF SCREEN HEIGHT VISIBLE FROM BACK ROW

VISIBILITY STAGGERED SEATS
OPTION 1: WINN ROOM INTERIOR UPGRADES within EXISTING FOOTPRINT Attachment 5
City of Coronado Page 20
4 OPTION 1: WINN ROOM INTERIOR UPGRADES within EXISTING FOOTPRINT

SCOPE OF PROJECT
 DCI Compliant AV equipment & associated electrical work  Modern AV equipment to switch views and speakers  Entry door replace with small lobby vestibule  Kitchen expansion: wall, sound insulation, cabinets, appliances, plumbing
 Floors: Luxury Vinyl Tile (LVT), Vinyl Composition Tiles (VCT), Tile  Wall: Paint  Ceiling: Acoustic ceiling tiles, gypsum board, acoustic panels  Windows: Blinds and motorized black out shades  Electrical service distribution  Light fixtures and light conztrols  Fire alarm & tel/data adjustments  Mechanical: Kitchen hood, exhaust, ducts, registers and AV Room 1 split system
 Roof repair for penetrations  No ADA upgrades  No restroom work  Escalation assumed for 4 months of construction starting Nov 2025 (excluding material lead time)
WHAT DO WE GAIN?
 AV improvements will give capability to:
 Enable quality recording and broadcast, Zoom,
YouTube, events, etc.
 Project speaker onscreen
 Show movie premieres, but with limited visibility  Contemporary finishes  Enhanced acoustics and lighting  Kitchen with catering capability & demonstration class offerings
WHAT ARE DRAWBACKS?
 Seating capacity is limited to same as existing (135 max)  Acoustical improvements are limited to existing box wall configuration
 Restrooms are not remodeled
 Poor sight lines  Storage space limited
Cost Estimate: $3,287,100
* All values represent estimated project costs.

Attachment 5
City of Coronado Page 21
5 OPTION 1
Attachment 5
City of Coronado Page 22
WINN ROOM DIMENSIONS: 47’-4” X 35’-5”
SEATING AREA: 1680 Square Feet (SF)
STAGGERED SEATS: 135
SEAT DIMENSION: 20’1/8” WIDE x 22-3/8” DEEP
16-1/4" CODE MIN. BETWEEN SEATS
NO CENTER AISLE; 13 or 14 seats per row
CEILING HEIGHT: 13-8”
SCREEN DIMENSIONS: 7’ X 12’
OBSTRUCTION: 13’-0” AFF
OPTIMAL/MARGINAL/NOT RECOMMENDED: 129 / 6 / 0

VISIBILITY STAGGERED SEATS
OPTION 2: WINN ROOM INTERIOR UPGRADES IN OPTION 1 and ELEVATE CEILING  90% OF SCREEN HEIGHT VISIBLE FROM BACK ROW
Attachment 5
City of Coronado Page 23
7 OPTION 2: WINN ROOM INTERIOR UPGRADES IN OPTION 1 and ELEVATE CEILING

SCOPE OF PROJECT
 All items in Option 1
 Remove existing ceiling to structure above
 Reroute above ceiling utilities and replace aesthetically to maintain higher ceiling: refinish ceiling, lights,
mechanical, fire sprinkler, fire alarm etc.
 Windows with motorized blackout shades
 Escalation assumed for 8 months of construction
starting Nov 2025 (excluding material lead time)
WHAT DO WE GAIN?
 All items in Option 1
 Improved audience sight lines and greater room volume that makes room appear larger
 Improved acoustics from Option 1
WHAT ARE DRAWBACKS?
 Seating capacity limited to same as existing (135 max)  Restrooms are not remodeled
 Storage space limited
* All values represent estimated project costs.

Cost Estimate: $4,158,800
Attachment 5
City of Coronado Page 24
8 OPTION 2
Attachment 5
City of Coronado Page 25
9 WINN ROOM DIMENSIONS: 47’-4” x 49’-9” (at widest points) SEATING AREA: 2316 Square Feet (SF)
STAGGERED SEATS: 180
SEAT DIMENSION: 20’1/8” WIDE x 22-3/8” DEEP
19-3/4” CODE MIN. BETWEEN SEATS
NO CENTER AISLE; 20 seats per row
CEILING HEIGHT: 13’-8”
SCREEN DIMENSIONS: 7’ X 12’
OPTIMAL/MARGINAL/NOT RECOMMENDED SEATS: 155 / 25 / 0
VISIBILITY STAGGERED SEATS:  95% OF SCREEN HEIGHT VISIBLE FROM BACK ROW OPTION 3: WINN ROOM INTERNAL EXPANSION
Attachment 5
City of Coronado Page 26
10 OPTION 3: WINN ROOM INTERNAL EXPANSION

SCOPE OF PROJECT
 Increases seating capacity of Winn Room
 AV Equipment Upgrade
 Motorized blackout shades  Circulation and room adjacencies not ideal as Option 4  Escalation assumed for 12 months of construction
starting Nov 2025 (excluding material lead time)
WHAT DO WE GAIN?
 Designed to maintain existing footprint with no northerly incursion into the park  Increases seating capacity for signature events and to attract high caliber authors and performers  Fills a gap in meeting space inventory in Coronado currently under 200 or over 600+  Optimizes space for multiple uses and adds rooms to improve functions  Improves space utilization by capturing dead space between current WR and staff offices; one tree must be removed but less trees impacted than Option 4  Multi-purpose room located at library vs two locations; staff operational efficiency  Good sight lines with limited poor seats  AV improvements will give capability to:
 Enable quality recording and broadcast, Zoom, YouTube, etc.  Project speaker onscreen
 Show movie premieres  Contemporary finishes  Enhanced acoustics and lighting WHAT ARE DRAWBACKS?
 Costly but long term for next 50-70 years  No foyer so no sense of entry and indoor waiting area  Kitchen no longer adjacent to foyer  No deck for events in the park for events like Shakespeare or performances in the park, outdoor dining, musicals, outdoor classes
Cost Estimate: $6,444,000
* All values represent estimated project costs.

Attachment 5
City of Coronado Page 27
11 OPTION 3
Attachment 5
City of Coronado Page 28
12 OPTION 3
Attachment 5
City of Coronado Page 29
13 OPTION 4: WINN ROOM LARGER EXPANSION
WINN ROOM DIMENSIONS: 50’-1” x 62’-7” (at widest points) SEATING AREA: 2931 Square Feet (SF)
STAGGERED SEATS: 208
SEAT DIMENSION: 20-1/8” WIDE x 22-3/8” DEEP
18” BETWEEN SEATS
CENTER AISLE improves circulation;
7 to 16 seats per row
CEILING HEIGHT: Varies from 20’-0” to 13’-8”
SCREEN DIMENSIONS: 9’ X 16’
OPTIMAL/MARGINAL/NOT RECOMMENDED SEATS: 182 / 26 / 0
VISIBILITY STAGGERED SEATS:  100% OF SCREEN HEIGHT VISIBLE FROM BACK ROW Attachment 5
City of Coronado Page 30
14 OPTION 4: WINN ROOM LARGER EXPANSION

SCOPE OF PROJECT
 Doubles size and seating capacity of Winn Room
 Provides ideal layout and circulation for programs  AV Equipment Upgrade  Motorized blackout shades  Escalation assumed for 12 months of construction starting Nov 2025 (excluding material lead time)
WHAT DO WE GAIN?
 Interior-exterior connection with the park; designed as a theater in the park  Adds foyer for sense of entry with waiting area  Doubles seating capacity to greater than 200 to attract higher quality performances  Gives Coronado a space designed for the performing arts  Fills a gap in meeting space inventory in Coronado currently under 200 or over 600+  Optimizes space for multiple uses and adds rooms to improve functions  Improves space utilization by capturing dead space between current WR and staff offices  Optional deck for events in the park which do not currently have i.e. Shakespeare or performances in the park, outdoor dining, musicals, outdoor classes  Multi-purpose room located at library vs two locations; staff operational efficiency  Good sight lines; zero poor seats  AV improvements will give capability to:
 Enable quality recording and broadcast, Zoom, YouTube, etc.  Project speaker onscreen
 Show movie premieres  Contemporary finishes  Enhanced acoustics and lighting  Kitchen with flexible access from both Foyer and WR
WHAT ARE DRAWBACKS?
 Most costly but long term for next 50-70 years  Trees impacted but deck area may be redesigned to work around some of trees Cost Estimate: $9,729,600
* All values represent estimated project costs.

Attachment 5
City of Coronado Page 31
15 OPTION 4
Attachment 5
City of Coronado Page 32
16 OPTION 4
Attachment 5
City of Coronado Page 33
17 JDSC GRAND ROOM DIMENSIONS: 49’-10” x 39’-6”
SEATING AREA: 1966 Square Feet (SF)
STAGGERED SEATS: 171
SEAT DIMENSION: 20-1/8” WIDE x 22-3/8” DEEP
17-1/2" BETWEEN SEATS
NO CENTER AISLE;15 and 16 seats per row
CEILING HEIGHT: Varies, 18’-9” at center of room
SCREEN DIMENSIONS: 7” x 12’
OBSTRUCTION: 9’-6” AFF
OPTIMAL/MARGINAL/NOT RECOMMENDED: 154 / 17 / 0
JDSC ALTERNATE OPTION: GRAND ROOM AUDIO VISUAL UPGRADES VISIBILITY STAGGERED SEATS:  100% OF SCREEN HEIGHT VISIBLE FROM BACK ROW Attachment 5
City of Coronado Page 34
18 JDSC ALTERNATE OPTION: GRAND ROOM AUDIO VISUAL UPGRADES

SCOPE OF PROJECT
 AV Equipment Upgrade
 Motorized blackout shades
 Escalation assumed for 3 months of construction
starting Nov 2025 (excluding material lead time)
WHAT DO WE GAIN?
 AV improvements will give capability to:
 Enable quality recording and broadcast, Zoom,
YouTube, events, etc.
 Project speaker onscreen
 Show movie premieres  Provides larger audience capacity than existing WR (171 vs 135) WHAT ARE DRAWBACKS?
 No other improvements (acoustics for example) in the room besides upgrading the AV equipment and its associated electrical/data work  Audience gain is only 36 people  Does not address deferred Winn Room issues.  Issues of shared facility between Library and JDSC.

Cost Estimate: $1,721,400
* All values represent estimated project costs.

Attachment 5
City of Coronado Page 35
* Based upon Salas O’Brien, Acoustic/Audio Visual Consultant, Report Comparative Features Summary
OPTION 1 OPTION 2 OPTION 3 OPTION 4 Alternate Option
WR Existing
WR Elevated
Ceiling WR Internal WR Larger JDSC Grand Rm
Interior Upgrade + Option 1 Expansion Expansion AV Upgrade Dimensions 47'-4" x 35'-6" 47'-4" x 35'-6" 47'-4" x 49'-9" 50'-1" x 62'-7" 49'-10" x 39'-6" Area 1680 SF 1680 SF 2316 SF 2931 SF 1966 SF
Seating Capacity
(240 code max occupancy)
135 using code min
row depth
135 using code min
row depth
180 using code min
row depth
208 using code min
row depth
171 using code min
row depth
Varies Varies
20'-0" to 13'-8" 18’-9” at center of room
Acoustics/Visual
Performance Ranking by
Consultant
1 worst to 5 best 2 3 3 4 1
Screen Dimension (HxW) * 7’ x 12' 7’ x 12' 7'x12' 9'x 16' 7'x 12' Percent of Screen Visible
from Back Row
Staggered Seats 35% 90% 95% 100% 100%
Total Project Cost Estimate
(incl soft costs) $3,287,100 $4,158,800 $6,443,900 $9,729,600 $1,721,400 Price per Seat (Code Min.) $24,349 $30,806 $35,799 $46,777 $10,067 Price per Square Foot $1,957 $2,475 $2,782 $3,320 $876
13'-8" 13'-8" Ceiling Height 9'-11"
OPTION 1 OPTION 2 OPTION 3 OPTION 4 Alternate Option
WR Existing
WR Elevated
Ceiling WR Internal WR Larger JDSC Grand Rm
Interior Upgrade + Option 1 Expansion Expansion AV Upgrade Dimensions 47'-4" x 35'-6" 47'-4" x 35'-6" 47'-4" x 49'-9" 50'-1" x 62'-7" 49'-10" x 39'-6" Area 1680 SF 1680 SF 2316 SF 2931 SF 1966 SF
Seating Capacity
(240 code max occupancy)
135 using code min
row depth
135 using code min
row depth
180 using code min
row depth
208 using code min
row depth
171 using code min
row depth
Varies Varies
20'-0" to 13'-8" 18’-9” at center of room
Acoustics/Visual
Performance Ranking by
Consultant
1 worst to 5 best 2 3 3 4 1
Screen Dimension (HxW) * 7’ x 12' 7’ x 12' 7'x12' 9'x 16' 7'x 12' Percent of Screen Visible
from Back Row
Staggered Seats 35% 90% 95% 100% 100%
Total Project Cost Estimate
(incl soft costs) $3,287,100 $4,158,800 $6,443,900 $9,729,600 $1,721,400 Price per Seat (Code Min.) $24,349 $30,806 $35,799 $46,777 $10,067 Price per Square Foot $1,957 $2,475 $2,782 $3,320 $876
13'-8" 13'-8" Ceiling Height 9'-11"
Attachment 5
City of Coronado Page 36
Winn Room salasobrien.com
Projection Screen &
Acoustics Evaluation

WINN ROOM, CORONADO, CA
UPDATE NOVEMBER 20, 2023

INTRODUCTION
The City of Coronado is considering five different options for the remodel or renovation of the Winn Room. The purpose of this report is to provide analysis and comparison between the different options with regard to acoustics and projection screens. The scope of this report is to provide the following information:

Acoustic recommendations for each of the 5 current room configuration options to determine the materials, quantities and costs involved in order to make a comparison.

Sightline studies and screen sizing analysis for each of the 5 current room options.

This version of the report has been modified from previous versions in that the option numbers and descriptions have changed. The new options are listed in order of overall project cost with #1 being the least expensive and option #4 being the most expensive.

ACOUSTICAL CONSIDERATIONS AND EVALUATION
The Winn Room is planned for presentations, speaking engagements, and a wide range of music performance styles that fall into two primary categories. The first performance style would be music that is played through a PA system such as high-quality musical events of various genres. This style would rely on the sound system to provide sound coverage to the seats. However, poor room acoustics (which are typically caused by excessive reverberation and reflections) will reduce the sound quality, even with a good system. The other type of performance would not use a PA system to reinforce the sound. This could be a small instrumental ensemble, a vocal choir, medium size orchestra, local community or school orchestra or concert band, or other similar un-amplified performance.

The biggest challenge with any of these types of performances is that music will produce a relatively high level of acoustic energy that needs to be controlled or managed. Because all the options for this Attachment 6
City of Coronado Page 37
Winn Room | salasobrien.com 2
room are small when compared to a typical music venue, sound will tend to be loud in this space. In general, the larger the physical volume of the room, the better it can help manage that acoustic energy.

The design goal for this room would be to provide a well-controlled acoustical environment that would allow for good speech intelligibility and clarity for playback sources including music, and at least a neutral acoustic environment. From a music performance standpoint, it will be important to control the acoustic energy in the room with some sound absorption without making the room too acoustically dry or dead.

Option #1: Winn Room Interior Upgrade within the Existing Footprint. This option is the basis from which each other option will be evaluated. This option is the smallest in terms of acoustic volume (ceiling height) and, because of this attribute, will be the most difficult. This option would ideally have some amount of sound absorption on the walls and ceiling to control reflections and reverberation.

However, this option is mostly windows that will reflect sound.

When looking at this option, most of the walls are glass or have doors in the walls. As such, there are no practical opportunities to provide sound absorption panels on the walls. For the ceiling, we would recommend some amount of sound absorption if possible. We recommend, at a minimum, an acoustical tile ceiling with high NRC (Noise Reduction Coefficient) ceiling panels.

Option #2: Winn Room Interior Upgrades and Elevate Ceiling. This design option will have an increased volume (higher ceiling) and therefore a slight increase in the amount of reverberation in the space in addition to the larger acoustic volume. Windows are larger so there will be more reflections.

This larger volume room will provide improved acoustics for some music performances but will come with some challenges. As with option #1, the small footprint of the room will significantly limit the size of the performance group.

Most of the walls are glass or have doors in the walls. However, because of the raised ceiling height, there will be drywall finished walls along the left side of the room above the doors where a strip of 4’x4’ acoustical panels can be installed. We recommend a total of 10 panels creating a 40’ long band of 160 sf of 2” thick fabric wrapped sound absorbing panels be installed on this wall.

Approximate materials only cost (not including installation labor) for this option would be $5,000.

For the ceiling in this space, we recommend a minimum of high NRC acoustical tile. A step up from acoustic tile could include a ceiling cloud system, a perforated metal or wood slat ceiling system with sound absorption above the perforated metal or slats.

Option #3: Winn Room Internal Expansion: This design option is another large room that will require additional sound absorption materials to control reverberation and reflections. Of the 5 options, this one is the second-best option due to the room size although the footprint size and ceiling height is not quite as high as option #4.

Attachment 6
City of Coronado Page 38
Winn Room | salasobrien.com 3
Approximate materials only cost (not including installation labor) for this option would be $5,000.

Option #4: Winn Room Larger Expansion. This design option is a much larger room with much higher ceilings and a greater amount of glass. This room will be the most reverberant of all options but can still perform well (acoustically) as long as sound absorption products are designed in conjunction with the architecture and installed in the ceiling and on the walls. The higher ceiling and windows will make the room feel open and should work the best of all options for acoustic performance such as a string or wind ensemble, or vocal group.

Due to the large number of windows on the right side and rear walls, it appears that only the left wall is an option for sound absorption panels. The drywall wall surfaces could provide up to approximately 384 square feet of acoustical panels that can be installed on the left side wall.

Approximate materials only cost (not including installation labor and materials) for this option would be $11,000. For the ceiling in this space, we would recommend a minimum of high NRC acoustical tile. A step up from acoustic tile could include a ceiling cloud system, a perforated metal or wood slat ceiling system with sound absorption above the perforated metal or slats.

Option Alternate: John D. Spreckels Center (JDSC) Grand Room Audio Visual Upgrades. This option has a slightly larger footprint (with a much higher ceiling) and will require a similar approach to installing sound absorption to control reverberation and reflections. Because this room is larger, it will require more sound absorption. The obstruction of the room dividing wall header that splits the room into two spaces will make this space extremely problematic for any type of acoustical music performance. Because of this item, this is the worst room of the 5 options.

When looking at this option, there appears to be a mixture of drywall walls and glass. The drywall wall surfaces could provide up to approximately 544 square feet of acoustical panels that can be installed on the side walls (128 sf each side) and 288 sf on the back wall. Approximate materials only cost (not including installation labor) for this option would be $15,000. For the ceiling in this space, we would recommend a minimum of high NRC acoustical tile. A step up from acoustic tile could include a ceiling cloud system, a perforated metal or wood slat ceiling system with sound absorption above the perforated metal or slats.

The following is a subjective rating for each of the rooms in their current designs, considering their acoustical performance on a scale of 1 to 5, with 5 being the ideal is:
• Option #4 – Larger Expansion: 4
• Option #3 – Internal Expansion: 3
• Option #2 – Elevate Ceiling: 3
• Option #1 – Interior Upgrades: 2
• Alternate Option – Grand Room AV Upgrades: 1
Attachment 6
City of Coronado Page 39
Winn Room | salasobrien.com 4

PROJECTION OR LED SCREEN SIZE COMPARISON AND EVALUATION Display Type
For a room that is intended to support a wide variety of community type functions, there are generally two types of video screens that can be used for video support of functions in the room. Those two types are Front Projection and Direct View LED. The aspects and pros/cons of each of these video display formats are as follows:
• Front Projection
• Uses a video projector, generally mounted from the ceiling or in the back of the room, and a fixed or motorized roll-down fabric screen material. • Provides very poor contrast when there is any ambient light from either exterior windows or interior lighting. The front projection screen cannot discriminate between ambient light and light from the projector, so all light is reflected off the screen. The best contrast attainable (image black color) is when the projector is turned off and any ambient light is on the screen. Front projection is generally used in environments where light can be highly controlled (such as a movie theater). • The projector that is mounted from the ceiling or on the back wall will typically have a noisy fan and may be disruptive.
• Depending on screen mounting height and projector location, someone could walk across the stage and shadow the image on the screen. Front projection is not conducive for use as a backdrop.
• Depending on projector brightness, lens configuration and resolution, the projector/screen combination is generally lower cost than direct view LED. • Direct View LED
• Uses a grid of LED panels mounted from the floor, attached to the front wall or suspended from structure.
• Viewing distances determine the optimum pixel pitch (distance between LED image pixels). For this application, a 2.5mm (or smaller) pixel pitch is recommended. • Provides rich colors and high light output, even in high ambient lighting conditions. • Provides excellent image contrast.
• Uses more power and generates more heat than front projection. • Is generally more expensive than front projection, as much as 2-3 times the cost.

Given the different room design options, all with extensive glass (and ambient light), direct view LED is the preferred display technology.

The following list of approximate sell pricing can be used as a budget for equipment only, not including infrastructure, installation labor, materials, tax, etc.

Attachment 6
City of Coronado Page 40
Winn Room | salasobrien.com 5
• 7’x12’ Projection – Approximately $30k (Options 1,2,3, Alternate) • 9’x16’ Projection – Approximately $35k (Option 4)
• 7’x12’ LED – Approximately $60k (Options 1,2,3, Alternate) • ‘9x16’ LED – Approximately $100k (Option 4)
Aspect ratio
There are many different screen formats used depending on what type of content is going to be displayed most often. For the majority of uses, a standard 16:9 High Definition aspect ratio is the most common for the majority of content that will be displayed. It is the standard aspect ratio for virtually all TVs that are produced today. Another format is 16:10 which conforms more closely to an earlier standard computer video graphics card and display resolution, but is not as common as HD. Also, there are various types of cinema formats, the most common of which is 2.35:1 but these screen aspect ratios are rarely used outside of movie theaters or other specialized video format functions. For the purpose of this comparison, a 16:9 aspect ratio will be used.

Screen Size
Optimum screen size is a function of many factors, most notable of which are the viewing distances and the nature of the content to be displayed. For example, viewing spreadsheets or small text PowerPoint presentations generally require larger screen size and higher resolution than full motion video.

For the purpose of this study, the standard viewing design criteria that is used is to have the screen image height be no less than 1/6 the distance to the furthest viewing seat. The following screen sizes for each room option will be used:

Furthest Optimal Screen
Option Viewer Size (rounded)
#1 40 7x12
#2 40 7x12
#3 41 7x12
#4 56 9x16
Alternate 41 7x12
Mounting Height
The mounting height of a screen is dependent on the information displayed and how much of the screen needs to be viewable to the worst seats. A screen mounted higher on the wall will provide better viewing for the seats in the rear of the room that has flat floor seating.

The main reason to mount a screen lower on the wall is if it is to be used as a scenic backdrop for activities on the stage. However, because of the flat floor seating and multiple uses for this room, a higher mounted screen will be the basis of the design for this evaluation.

Attachment 6
City of Coronado Page 41
Winn Room | salasobrien.com 6
When looking at the screen from the back row of each room option, a significant portion of the lower part of the screen might be obstructed for viewers unless the screen is raised. As such, our recommendation is to mount the screen sufficiently high to provide adequate viewing for all seats.

Evaluation
The following descriptions assume the screen sizes per the chart above.

Option #1: to provide the optimum screen size for the viewing distance, this option would require the bottom of the screen to be mounted 3’ above the floor due to the ceiling height. This would result in very poor visibility to most of the screen image. Approximately 65% of the screen image will be blocked from viewing from the rear row. The alternative would be to put in a smaller screen which would reduce the image size and result in poor viewing of the screen image from the back of the room.

Option #2: to provide the optimum screen size for the viewing distance, this option would require the bottom of the screen to be mounted 6’ above the floor. This would result in good image visibility to most of the screen image from all seats and allow a presenter to walk across the front of the room without obstructing the screen.

Attachment 6
City of Coronado Page 42
Winn Room | salasobrien.com 7
Option #3: to provide the optimum screen size for the viewing distance, this option would require the bottom of the screen to be mounted 6’ above the floor. This would result in good image visibility to the majority of the screen image from all seats and allow a presenter to walk across the front of the room without obstructing the screen.

Option #4: to provide the optimum screen size for the viewing distance, this option would require the bottom of the screen to be mounted 6’ above the floor. This would result in good image visibility to the majority of the screen image from all seats and allow a presenter to walk across the front of the room without obstructing the screen. The further viewing distance of this room would require a 9’x16’ screen for good viewing from the furthest seat because of the longer viewing distance.

Attachment 6
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Winn Room | salasobrien.com 8
Option Alternate: to provide the optimum screen size for the viewing distance, this option would require the bottom of the screen to be mounted 6’ above the floor. This would result in good image visibility to the majority of the screen image from all seats and allow a presenter to walk across the front of the room without obstructing the screen.

An adequate viewing experience can be achieved when using Direct View LED (instead of projection) on any of the options #2-#4. Due to the low ceiling height and extremely poor viewing of Option #1, this room design option is not recommended.

The main drawback of Option Alternate is the presence of the glass wall header in the middle of the room which negatively impacts the room's functionality. Removing this element would significantly improve the room's suitability for various purposes but would eliminate the ability to split the one large room into two smaller rooms.

SUBJECTIVE EVALUATION OF THE WINN ROOM OPTIONS
A subjective rating for each of the rooms in their current designs, considering their suitability for meetings or small musical performances on a scale of 1 to 5, with 5 being the ideal is:
• Option #4 – Larger Expansion: 4
• Option #3 – Internal Expansion: 3
• Option #2 – Elevate Ceiling: 3
• Option #1 – Interior Upgrades: 2
• Alternate Option – Grand Room AV Upgrades: 1
Attachment 6
City of Coronado Page 44
Winn Room | salasobrien.com 9

EVALUATION OF CINEMA USES FOR THE WINN ROOM
The following is an evaluation of the attributes of a Cinema Movie Theater when compared to the various Winn Room design options for the uses of cinema presentations:

Attribute Cinema Winn Room Options
Screen Fills the entire front width of the
room
Covers half of the front width of the
room
Sightlines Stadium seating for optimal viewing Flat floor with obstructed viewing Ambient
Light
No ambient light Ambient light from windows
Acoustics Completely absorptive room Minimal sound absorption The Winn Room is more suitable for live presentations to a group and interactive functions and gatherings compared to cinema. The primary issue is the screen size, as the architecture and budget constraints limit its size.

OTHER CONSIDERATIONS
In addition to the acoustics of the space and screen size and image type, there are additional considerations that will need to be addressed once a design option is selected. A partial list of these items include:

Stage lighting positions for front and back light
Lighting control of both stage and house lighting
Sound control (mixing console) equipment and operator location and accommodation Stage storage, if a portable stage is used
ADA access to the stage
Structural and architectural accommodation for the video screen and speaker systems Space, infrastructure, power, and cooling requirements for AV equipment All of these items will need to be addressed during the design phase of the project. -END OF REPORTAttachment 6
City of Coronado Page 45

Coronado City CouncilDecember 12, 2023

Coronado City Council
December 12, 2023