16498.00150\32127016.1
AMENDMENT NO. 6
TO THE DESIGN SERVICES AGREEMENT
DE-24-147-SP
BETWEEN
THE CITY OF FONTANA
AND
SILLMAN WRIGHT ARCHITECTS
1. Parties and Date.
This Amendment No. 6 to the Design Services Agreement DE-24-147-SP is made and entered into as of this 15th day of July 2026, by and between the City of Fontana (“City”) and Sillman Wright Architects, a Corporation with its principal place of business at 31045 Temecula Parkway, Suite 202, Temecula, California 92592 (Consultant). City and Consultant are sometimes individually referred to as “Party” and collectively as “Parties.”
2. Recitals.
2.1 Consultant. The City and Consultant have entered into an agreement entitled Professional Services Agreement” dated July 25, 2024 (“Agreement”) for the purpose of retaining the services of Consultant to provide Architectural Design services.
2.2 Amendment Purpose . The City and Consultant desire to amend the Agreement to revise the scope of services and increase the not -to-exceed compensation amount. The Parties have therefore entered into that Amendment No. 1 dated September 11, 2024, Amendment No. 2 dated April 23, 2025, Amendment No. 3 dated June 25, 2025, Amendment No. 4 dated August 25, 2025 and Amendment No. 5 dated December 10, 2025.
2.3 Amendment Authority. This Amendment No. 6 is authorized pursuant to Section 3 of the Agreement.
3. Terms.
3.1 Amendment. Section 1 of the Agreement is hereby amended in its entirety to read as follows:
1. Services. Consultant shall provide the City with the services described in the Scope of Services attached hereto as Exhibit “A”.
3.2 Amendment. Section 2 of the Agreement is hereby amended in its entirety to read as follows:
16498.00150\32127016.1
2. Compensation.
a. Subject to paragraph 2(b) below, the City shall pay for such services in accordance with the Schedule of Charges set forth in Exhibit “B”.
b. Amendment No. 6 is authorized in the amount of $ 324,890.00. In no event, shall the total amount paid for services by Consultant under this Agreement exceed the sum of $3,119,200.00. This amount is to cover all printing related costs, and the City will not pay any additional fees for printing expenses. Periodic payments shall be made within 30 days of receipt of an invoice which includes a detailed description of the work performed. Payments to Consultant for work performed will be made on a monthly billing basis.
3.3 Continuing Effect of Agreement . Except as amended by this Amendment No. 6, all other provisions of the Agreement remain in full force and effect and shall govern the actions of the parties under this Amendment No. 6. From and after the date of this Amendment No. 6, whenever the term “Agreement” appears in the Agreement, it shall mean the Agreement as amended by this Amendment No. 6.
3.4 Adequate Consideration. The Parties hereto irrevocably stipulate and agree that they have each received adequate and independent consideration for the performance of the obligations they have undertaken pursuant to this Amendment No. 6.
3.5 Severability. If any portion of this Amendment No. 6 is declared invalid, illegal, or otherwise unenforceable by a court of competent jurisdiction, the remaining provisions shall continue in full force and effect.
[Signatures on Next Page]
16498.00150\32127016.1
SIGNATURE PAGE TO
AMENDMENT NO. 6
DESIGN SERVICES AGREEMENT
CITY OF FONTANA
By: ___
Matthew C. Ballantyne
City Manager
SILLMAN WRIGHT ARCHITECTS
By: ______________________________
Brett Tullis
Principal Architect
Attest:
By: ___________________________
Germaine McClellan Key
City Clerk
By: ___________________________
Phillip Burum
Deputy City Manager
Approved as to form:
_________________________________
Best Best & Krieger LLP
City Attorney
By: ___________________________
Gia Kim
Public Works Director / City Engineer
IN COMPLIANCE WITH PURCHASING AND CONTRACT ADMINISTRATION POLICIES/PROCEDURES
Jessica Brown
Chief Financial Officer
Sid Lambert
Purchasing Office
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
January 7, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 11 – Rough Grading Permit Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN (Architect) is pleased to provide the City of Fontana (Client) with the following proposal for Additional Services to include a Rough Grading Permit set of plans and permitting scope for the newly proposed Fontana City Hall.
1. BACKGROUND AND DESCRIPTION
Per the City’s request, this proposal includes the scope of work to provide a set of rough grading plans for permitting a Rough Grading Permit with the City of Fontana. This work is not currently covered by the Civil Engineer’s contract.
The revision to the scope of work is a change to the approved design and is considered Additional Services.
Fontana City Hall
Additional Service 11 – Rough Grading Permit
January 7, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
2. SCOPE OF WORK
a) Snipes Dye (Civil Engineer) – Will provide rough grading plans for a Rough Grading Permit not previously included in the scope of work.
Rough Grading Plans to comply with City of Fontana’s Rough Grading Permit Requirements updated 12/18/2025. See attached proposal from Snipes Dye dated 1/6/2026.
b) SILLMAN (Architect) – Will submit the plans and process the permit through Accela with the Fontana Engineering Department for permitting.
3. EXCLUSIONS
1. Plan check, permits and other fees.
2. Services beyond what are identified in this prop osal.
4. FEE FOR SERVICES
Discipline Lighting
Civil Engineer $25,800
SILLMAN ~15% $3,700
Sub Total $29,500
All other conditions of the Original Signed Agreement remain the same.
Thank you for this opportunity to be of service.
Amount
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
March 17, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 12 – 9/11 Memorial Site Plan Updates & Landscape Revisions on Upland Ave
Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN (Architect) is pleased to provide the City of Fontana (Client) with the following proposal for Additional Services to revise the site plans and landscape plans as requested for the newly proposed Fontana City Hall.
1. BACKGROUND AND DESCRIPTION
Per the City’s request, this proposal includes the scope of work to revise the site plans and landscape plans adjusting for the 9/11 Memorial footprint and to revise the landscape in the ROW along Upland Avenue. This work is not currently covered by the Landscape Architect’s contract.
The revision to the scope of work is a change to the approved design and is considered Additional Services.
Fontana City Hall
Additional Service 12 – Landscape Revisions
March 17, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
2. SCOPE OF WORK
a) Neri Landscape Architecture – Will revise and up date Landscape Demo, Soils, Planting and Irrigation Plans to adjust to the 9/11 Memorial footprint in the Building Permit Set. See attached proposal from Neri Landscape Architecture dated 12/1/2025.
b) Neri Landscape Architecture – Will revise and up date Landscape Planting and Irrigation Plans for the ROW Permit Set. See attached proposal from Neri Landscape Architecture dated 1/16/2026. c) SILLMAN (Architect) – Will coordinate and update CAD site plan background file, re-design the hardscape plan for the City Hall site plan, revise all architectural site plans and process the building permit and ROW permit through Accela with the City of Fontana for permitting.
3. EXCLUSIONS
1. Plan check, permits and other fees.
2. Services beyond what are identified in this prop osal.
4. FEE FOR SERVICES
Discipline Landscape
Landscape Architect 9/11 Memorial Revisions $2,610
Landscape Upland Ave ROW Revisions $1,445
SILLMAN Site Plan Updates $10,645
Sub Total $14,700
Amount
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
March 17, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 13 – Interior Changes
Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN (Architect) is pleased to provide the City of Fontana (Client) with the following proposal for Additional Services to revise the plans for the requested changes for the newly proposed Fontana City Hall.
1. BACKGROUND AND DESCRIPTION
Per the City’s request, this proposal includes the scope of work to add plumbed coffee makers, plumbed hot/cold water filter machines, and garbage disposals to every break room, to add a stove and required vent hood to the lunchroom, to remove the breakroom in the Housing Department, and to adjust furniture plans per markups provided. This work is not currently covered by the contract.
The revision to the scope of work is a change to the approved design and is considered Additional Services.
Fontana City Hall
Additional Service 13 – Interior Changes
March 17, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
2. SCOPE OF WORK
a) Hasenbeck Interior Designer – To revise plans an d FF&E package per markups. See attached proposal from Hasenbeck dated 12/13/2025.
b) WSP (Mechanical, Electrical Plumbing Engineers) – Provide engineer services for mechanical, electrical and plumbing to accommodate requested changes. See attached proposal from WSP dated 12/22/2025.
c) SILLMAN (Architect) – To update plans for reques ted changes and coordinate consultants for all changes.
3. EXCLUSIONS
1. Plan check, permits and other fees.
2. Services beyond what are identified in this prop osal.
4. FEE FOR SERVICES
Discipline Landscape
Interior Design $5,000
MEP Plan Changes $3,600
SILLMAN Plan Changes $12,200
Sub Total $20,800
Amount
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
March 03, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 14 – DSO Changes
Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN (Architect) is pleased to provide the City of Fontana (Client) with the following proposal for Additional Services to revise the plans for the requested changes for the newly proposed Fontana City Hall.
1. BACKGROUND AND DESCRIPTION
Per the City’s request, this proposal includes the scope of work to revise the 2 nd floor plan for the DSO, including 3 offices at the new addition space and relocate the proposed conference room to the proposed interior office. This work is not currently covered by the contract.
The revision to the scope of work is a change to the approved design and is considered Additional Services.
Fontana City Hall
Additional Service 14 – DSO Updates
March 03, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
2. SCOPE OF WORK
a) Hasenbeck Interior Designer – To add plans for t he DSO for furniture and update the FF&E package. See attached proposal from Hasenbeck dated 2/2/2026.
b) WSP (Mechanical, Electrical Plumbing Engineers) – Provide engineer services for mechanical, electrical and plumbing to accommodate requested changes at the DSO. See attached
proposal from WSP dated 1/28/2026.
c) BWE (Structural) – Provide revisions to the DSO roof framing due to mechanical equipment changes. See attached proposal from BWE Engineers dated 2/5/26
d) SILLMAN (Architect) – To update plans for reques ted changes and coordinate consultants for all changes.
3. EXCLUSIONS
1. Plan check, permits and other fees.
2. Services beyond what are identified in this prop osal.
4. FEE FOR SERVICES
Discipline Landscape
Interior Design $5,000
MEP Plan Changes $12,600
BWE Structural Updates $3,500
SILLMAN Plan Changes $18,400
Sub Total $39,500
Amount
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM April 13, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 15 – Parcel Map Updates & Renderings Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN is pleased to provide the City of Fontana (Client) with the following proposal for the above-named project:
I. BACKGROUND AND DESCRIPTION
A. Per the request of the City of Fontana please re fer to the attached Snipes- Dye Civil Engineering proposal which outlines the scope of work required for the Lot Consolidation Parcel Map for 11 parcels. This is an update to the 2025 Additional Service for 7 parcels.
B. Renderings for the new City Hall provided at Ent itlement Permitting, updated during Design Development, and revised during Bidding with the final design.
II. SCOPE OF WORK
A. SILLMAN:
a. Coordination with Snipes Dye and permitting as r equired for the Parcel Maps.
b. 3D modeling syncing and coordination with outsid e services for renderings. Providing material imagery, review time, meeting time, model updates as required.
i. (3) renderings provided at Entitlement Permit Ph ase ii. (1) rendering updated during Design
iii. (3) renderings provided at Bidding
B. Snipes-Dye: Scope per the attached proposal date d April 2, 2026. 2025 proposal included for reference. Funding for previous proposal was approved under Additional Service #04. See Fee Total for subtraction of previously approved funding.
Fontana City Hall
Add Service 15 – Parcel Map Updates and Renderings
April 13, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM [Title]
III. EXCLUSIONS
A. Plan check, permits and other fees.
B. Services beyond what are identified in this prop osal.
IV. FEE FOR SERVICES
Discipline Amount
SILLMAN Parcel Map $25,000
Previously approved in Additional Service #04 ($8,000) Snipes Dye Civil Engineer – Parcel Map $95,500
Previously approved in Additional Service #04 ($79,750) Parcel Map subtotal $32,750
SILLMAN Renderings $36,500
Total $69,250
V. MISCELLANEOUS PROVISIONS
A. Payment for service shall be billed monthly base d on the time spent for the work.
B. The fees for the above scope of work are valid f or six (6) months from the date of this proposal.
We look forward to working with you and thank you for this opportunity to be of service.
Sincerely,
Katy Hamilton
Project Manager
SILLMAN
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM April 13, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 16 – Bridge Design Updates, Cashiers Counter Redesign & Waterproofing 3
rd Party Review
Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN is pleased to provide the City of Fontana (Client) with the following proposal for the above-named project:
I. BACKGROUND AND DESCRIPTION
A. Per the request of the City of Fontana redesign the bridge facades from steel cables to taller glass and metal panels.
B. Per the request of the City of Fontana redesign the public cashiers counter to standing height custom cabinetry with adjustments for computers, monitors, and other cashier’s equipment.
C. SILLMAN recommends a 3
rd party review of seismic joint details to evaluate
building performance.
II. SCOPE OF WORK
A. Bridge Design:
a. Study options for revisions to bridge façade con necting the new City Hall and the existing DSO and propose alternates to client. b. Update elevations and details for the bridge onc e client selects new design direction.
B. Cashiers Public Counters
a. Change from premanufactured workstations to cust om cabinetry. b. Computer location adjustments from side desks to counter, adjustments to counter depths to accommodate computers. c. Height change of side desks from low to high to match counter heights.
C. 3
rd Party Review of Seismic Joint Details
Fontana City Hall
Add Service
16 – Bridge Redesign, Cashiers Counter Redesign & Waterproofing 3 rd Party Review April 13, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM [Title]
a. Facilitate 3 rd party review of seismic details, coordinating manufacturers’ comments, 3 rd party reviewers’ comments, and revise details accordingly.
b. Review the following conditions:
i. Waterproofing assemblies
ii. Roofing, flashings, and drains/gutters
iii. Exterior sheathing, air, and water resistive b arrier systems iv. Exterior wall cladding assemblies including anc hors, through- wall flashing and weeps
v. Exterior wall finishes and copings
vi. Interior ceilings, walls and wall corners
vii. Interior finish floors/ floor slab conditions
c. Coordinate product recommendations with specific ation sections.
III. EXCLUSIONS
A. Plan check, permits and other fees.
B. Services beyond what are identified in this prop osal.
IV. FEE FOR SERVICES
Discipline Amount
SILLMAN Revise Bridge $7,000
SILLMAN Revise Cashiers Counter $13,000
SILLMAN 3rd Party Waterproofing Review $16,140
Total $36,140
V. MISCELLANEOUS PROVISIONS
A. Payment for service shall be billed monthly base d on the time spent for the work.
B. The fees for the above scope of work are valid f or six (6) months from the date of this proposal.
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM May 5, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 17 –Bidding Phase Additional Effort Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN is pleased to provide the City of Fontana (Client) with the following proposal for the above-named project:
I. BACKGROUND AND DESCRIPTION
A. The Bidding Phase of the project required additi onal effort to respond to the overwhelming number of RFIs.
II. SCOPE OF WORK
A. Additional Bidding Effort
a. SILLMAN provided responses to Bidding RFIs and r econciled plans and specifications to coordinate.
b. Original work hours for Bidding Phase allocated: 180 hours. c. Work hours in January 2026 increased by 75 hours over scheduled. d. Work hours in February 2026 increased by 200 hou rs over scheduled.
e.
Principal Architect $ 220.00
Project Architect $ 190.00
Project Manager $ 180.00
Project Designer $ 170.00
Drafter / CAD / BIM $ 120.00
Administrative
Assistant $ 110.00
Blended Hourly Rate $ 165.00
Fontana City Hall
Add Service
17 – Bidding Phase Additional Effort
May 5, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM [Title]
III. EXCLUSIONS
A. Plan check, permits and other fees.
B. Services beyond what are identified in this prop osal.
IV. FEE FOR SERVICES
Discipline Amount
SILLMAN $45,000
Total $45,000
V. MISCELLANEOUS PROVISIONS
A. Payment for service shall be billed monthly base d on the time spent for the work.
B. The fees for the above scope of work are valid f or six (6) months from the date of this proposal.
We look forward to working with you and thank you for this opportunity to be of service.
Sincerely,
Katy Hamilton
Project Manager
SILLMAN
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM May 6, 2026
Mr. Eric Amaya
Project Manager
City of Fontana
8353 Sierra Ave
Fontana, CA 92335
Subject : Additional Service 18 –Council Chambers Ramp and Additional Construction Administration Effort
Fontana City Hall Phase II
Contract No. DE-24-147-SP
Dear Eric:
SILLMAN is pleased to provide the City of Fontana (Client) with the following proposal for the above-named project:
I. BACKGROUND AND DESCRIPTION
A. Client-requested design revisions to separate th e dais into multiple sections resulted in additional accessibility and egress coordination during permitting, including the requirement for a second accessible ramp.
B. Additional effort will be required during Constr uction Administration for coordination of scope of work added to the project, including the Photovoltaic Permit, the North Parking Lot & ROW, and the DSO Addition and Renovation.
II. SCOPE OF WORK
A. Council Chambers Dais Ramp Access
Additional design and coordination services associated with revisions required to add a second ramp in lieu of stairs to the dais, including modifications necessary to address accessibility and code compliance requirements identified during agency review.
a. Revisions to architectural plans, enlarged plans , sections, elevations, details, dimensions, and accessibility clearances associated with accessible ramps located on both sides of the dais.
b. Coordination and revisions to dais millwork, cab inetry, staff seating configurations, guardrails, handrails, finish transitions, and adjacent architectural elements impacted by the ramp revisions.
c. Updates to code compliance diagrams, accessible path of travel requirements, and related construction documentation associated with the revised dais access configuration.
Fontana City Hall
Add Service
18 – Council Chambers Ramp and Additional CA Effort
May 6, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
B. Additional Construction Administration Efforts
Construction Administration services associated with the added scope identified in prior approved additional services were not included in the original budget. Additional effort will be required to provide coordination, review, documentation, and field support associated with the expanded project scope, including increased submittal review, Requests for Information (RFIs), site observations, consultant coordination, contractor coordination, and project meetings associated with the following added scope items. The added scope increases the volume and complexity of Construction Administration effort required within the existing project schedule. a. Photovoltaic Permit:
i. Additional coordination and Construction Adminis tration services, including deferred submittal review, consultant coordination, responses to contractor inquiries, review of photovoltaic equipment and structural/electrical coordination submittals, and associated field coordination.
b. North Parking Lot and ROW:
i. Additional Construction Administration services, including coordination of sidewalk modifications, site lighting, landscaping, accessibility requirements, utility coordination, and related civil, landscape, and electrical consultant coordination.
c. DSO Renovation and Addition:
i. The DSO Addition and Renovation scope includes a pproximately 2,883 SF of renovated and new construction area.
ii. Additional Construction Administration services , including increased review of submittals and RFIs, site visits, coordination between existing and new construction, phased construction coordination, consultant coordination, and evaluation and coordination of unforeseen existing conditions.
III. EXCLUSIONS
A. Plan check, permits and other fees.
B. Services beyond what are identified in this prop osal.
Fontana City Hall
Add Service
18 – Council Chambers Ramp and Additional CA Effort
May 6, 2026
SILLMAN I 7515 Metropolitan Drive I Suite 400 I San Diego CA 92108 I T: 619.294.7515 I WWW .SILLMANARCH .COM
IV. FEE FOR SERVICES
Discipline Amount
SILLMAN – Dais Ramps $15,000
CA Effort – PV permit $5,000
CA Effort – North Parking Lot $5,000
CA Effort – DSO $45,000
Total $70,000
V. MISCELLANEOUS PROVISIONS
A. Payment for service shall be billed monthly base d on the time spent for the work.
B. The fees for the above scope of work are valid f or six (6) months from the date of this proposal.
We look forward to working with you and thank you for this opportunity to be of service.
Sincerely,
Katy Hamilton
Project Manager
SILLMAN
Add Service 11 – Rough Grading Plan Set & Permit $29,500.00 Add Service 12 – Site Plan Updates and Landscape Revisions $14,700.00 Add Service 13 – Interior & MEP Room Changes $20,800.00 Add Service 14 – DSO Interior, MEP & Structural Changes $39,500.00 Add Service 15 – Parcel Map Updates & Renderings $69,250.00 Add Service 16 – Bridge, Cashier Counters Updates & Waterproofing Review $36,140.00 Add Service 17 – Architect of Record Additional Effort During Bidding $45,000.00 Add Service 18 – Restructuring of Dais & Additional Construction Admin Efforts $70,000.00 TOTAL FEE (PSA AMENDMENT NO. 6) = $324,890.00