City of Seattle

Seattle City Hall (SCH) Roof and Windows Replacement

PW#2026-011

Open

Department

Public Works

Mark Nakagawara - Deputy Division Director

Summary

Project Description: The project consists of reroofing and related building envelope improvements at Seattle City Hall, including green roof replacement, waterproofing, roof drainage repairs, curtain wall window panels replacement, installation of fall protection and bird deterrent systems, and associated maintenance improvements necessary to restore and extend the service life of the facility.Engineer's Estimate: Base Bid: $4,552,000.00Bid Alternate #1 Surface Applied Glaze: $28,721.00Bid Alternate #2 Waterproof Membrane Augmentation; RT-3: ($48,332.00)Bid Alternate #3 New PVC Roofing Membrane; RT-4: $150,673.00Bid Alternate #4 New PVC Roofing Membrane; RT-5: $72,758.00Project Location: Seattle City Hall 600 4th Ave, Seattle, WA 98104

Background

This Project is a Covered Project subject to the City of Seattle’s Community Workforce Agreement (CWA) and Priority Hire SMC 20.37. With the support of the mayor and City Council, the City of Seattle administers programs that support racial and economic equity through contracting. Priority Hire is one of these programs. Priority Hire provides people living in economically distressed communities, women, and people of color access to work on the city’s construction projects. It gives contractors access to these skilled workers.For purposes of the Inclusion Plan, this is considered a Roofing type of project with a Past Performance of PERCENT 15% WMBE utilization rates based on completed projects. For questions on the Inclusion Plan, please contact Miguel Beltran at Miguel.Beltran@seattle.gov or 206-684-4525. Back-up contact is Carmen Kucinski at Carmen.Kucinski@seattle.gov or 206-684-0188.

Important Dates

Release Date

8/26/2026

Pre-Proposal Date

9/2/2026

Q&A Deadline

9/18/2026

Proposal Deadline

9/23/2026

Contact Information

Project Contact

Zain Aldahlaki

Sr. Project Manager

zain.aldahlaki@seattle.gov

(206) 735-8730

700 5th Ave Suite 52

Seattle, WA 98104

Procurement Contact

Pamela Honma

Sr. Construction Contracts Specialists

pamela.honma@seattle.gov

(206) 733-9941

700 5th Ave

Seattle, WA 98101