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agenda-report HERITAGE PARK AND COMMUNITY CENTER RENOVATION PROJECT DESIGN CONCEPTS, CIP# FP24502

Diamond Bar City Council
February 20, 2024

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agenda-report HERITAGE PARK AND COMMUNITY CENTER RENOVATION PROJECT DESIGN CONCEPTS, CIP# FP24502
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February 20, 2024
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Diamond Bar City Council
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Agenda #: 1
Meeting Date: February 20, 2024

CITY COUNCIL STUDY SESSION REPORT
TO: Honorable Mayor and Members of the City Council
VIA: Daniel Fox, City Manager
FROM: Hal Ghafari, Public Works Manager/Asst. City Engineer TITLE: HERITAGE PARK AND COMMUNITY CENTER RENOVATION PROJECT DESIGN CONCEPTS, CIP# FP24502
In a study session on July 9, 2019, the City Council reviewed the design concept for the City’s Heritage Park and Community Center renovation and provided direction to staff.

The design options were prepared based on the feedback received from the community at the time. On October 1, 2019, staff came back with a new option (Option 5), which incorporated the directions received from the City Council on the options presented in July 2019. Option 5 divided the renovation of the park and community center into three phases. Phase 1 focused on the community center building and the parking lot. Phase 2 generally covered the tot lot, picnic area, and basketball court. Phase 3 was the baseball field area. Option 5 concept as approved by the City Council is provided in Attachment 1.

On October 3, 2023, the City Council approved a consulting services agreement with Black O'Dowd and Associates, Inc. (Consultant) to design the Heritage Park and Community Center Renovation Project Phases 1 and 2 (CIP# FP24502). The design work for these phases has since commenced and undergone several iterations with the staff. Phases 1 and 2 are focused on the community center building and the park area.

As part of Phase 3 of the overall project, the ball field area is excluded from the current design effort and will be considered at a later time.

Different options have been developed for the floor plan of the community center building, the park layout, and the façade/shade structure at the building entrances. A brief description of each option is provided below. The design options and themes are provided in Attachment 2. City Council feedback is requested at this time to identify preferred options and themes to be able to move forward in the final design process.

Community Center Building
 Option A
This option focuses on making less significant improvements to the existing floor plan of the facility while including other targeted enhancements such as updated plumbing and electrical systems, an upgraded audio-visual system, and reconstructed restrooms. This option would add approximately 1,200 sq.ft. to the building footprint, resulting in a total built area, inclusive of the community building and the outdoor restrooms, about 27% larger than the existing facility. The proposed front and rear shade structures are not included in the footprint calculation.

In this option, the main changes to the floor plan include:
• Addition of a new entrance space.
• Addition of new kitchen storage and a janitor room for storing janitorial supplies, tools, etc.
• Addition of a new indoor restroom on the northeast side of the building to replace the existing one.
• Conversion of the existing indoor restroom into storage space. • Removal of the existing detached outdoor restroom building and its replacement with a new attached outdoor restroom building.
• Enlargement of the existing activity room by removing the existing toddler restroom and adding a new one next to the new attached outdoor restroom on the southwest side of the building.
 Option B
This option represents a significant improvement to the facility beyond what was covered in Option A above. The enhancements presented in this option will elevate the facility to a level that can provide significantly greater value to the community.

With this option, approximately 2,400 sq.ft. will be added to the building footprint, resulting in a 55% increase in size, excluding the proposed shade structures.

In this option, the main changes to the floor plan include:
• Addition of a new entrance space.
• Conversion and expansion of the existing kitchen into storage space. • Addition of a new kitchen, along with a separate kitchen storage area. • Addition of a new second office (in addition to the existing office) that can be used for activities, one-on-one meetings with parents, and other administrative purposes.
• Inclusion of a new janitor room for storing janitorial supplies, tools, etc. • Addition of a new indoor restroom on the northeast side of the building to replace the existing one.
• Conversion of the existing indoor restroom into storage space. • Removal of the existing detached outdoor restroom building and its replacement with a new attached outdoor restroom building.
• Expansion of the existing activity room by removing the existing toddler restroom and adding a new one next to the new attached outdoor restroom on the southwest side of the building.

Shade Structure (Front and Rear)
 Option A
This option provides new shade structures to highlight and formalize the front entrance, and to the rear of the building creating a more usable and comfortable patio area, inspired by the overall design of the existing building. This option would add about 1,000 sq.ft. of shaded area to the front of the building and between 2,150 sq.ft. to 2,300 sq.ft. of the same to the rear of the building, depending on the building floor plan Option selected.
 Option B
Similar to Option A, this option provides shade structures in the entrance area (front) and the rear of the building, although inspired by the City's windmill design.

Similarly, this option would add about 1,000 sq.ft. of shaded area to the front of the building and between 2,150 sq.ft. to 2,300 sq.ft. of the same to the rear of the building, depending on the building floor plan Option selected.

Park (ballfield excluded)
Both options provide similar amenities but with different layout designs. Both involve replacing the existing basketball court and adding other improvements, such as enhanced landscaping and an upgraded playground area. Additionally, both options include extensive necessary ADA and drainage improvements.

Playground
Two age-appropriate play areas are proposed (2-5 years old and 5-12 years old). Two general themes for the playground area have been proposed, Western Farm and Western Town, with imagery intent for each included in the attachment. Upon selection of a design theme, playground amenities and equipment can be development as part of the next stage of design.

Probable Cost Estimate
The following probable cost estimates for each option provided above are preliminary. It is important to note that these estimates are expected to change as the design work progresses and again after the project goes through the construction bidding process.

Nonetheless, these preliminary numbers do provide valuable data for comparing the options.

Option A Option B
Building and Shade Structures $8.45M $9.7M
Park (including playground)
Total Probable Costs
$4.10M
$12.55M
$4.2M
$13.9M
Funding options will need to be further developed for consideration by the Council as the project moves forward through the final design process and prior to construction.

Attachments:

1. 1.a 2019 Option 5 Concept

2. 1.b Current Design Options

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