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King County Library System·Washington

KING COUNTY LIBRARY SYSTEM: REIMAGINING SPACES AT KENT LIBRARY - PHASE 2 GENERAL CONTRACTOR

Closes 11/2/2026$3.3M – $3.9MInvitation for Bid
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Description

The King County Library System is seeking a qualified general contractor to execute a full interior renovation of the 22,600‑sq‑ft Kent Library. The project includes selective demolition, construction of new interior spaces, restrooms, accessibility upgrades, and extensive modifications to structural, mechanical, electrical, plumbing, fire‑protection, and low‑voltage systems. All finishes, casework, furnishings, signage, and technology installations are included, as well as coordination of owner‑furnished items and complete testing, inspections, and close‑out documentation. The library will be closed during construction, and the contractor must complete the work within five months of the notice to proceed, adhering to prevailing‑wage and apprenticeship requirements. The estimated base bid range is $3.25 M–$3.9 M, and the award is anticipated on November 10, 2026. • Full interior renovation of 22,600 sq ft Kent Library (address: 212 2nd Ave N, Kent, WA 98032) • Scope: demolition, new partitions, ceilings, finishes, restrooms, ADA upgrades, MEP system upgrades, casework, furnishings, signage, technology integration • Contract time: 5 months after notice to proceed (estimated start Dec 1, 2026) • No pre‑bid meeting or site visits; all information available via OpenGov portal • Mandatory prevailing‑wage and apprenticeship compliance (≥15% apprentice hours) • Estimated base bid: $3.25 M–$3.9 M; award expected Nov 10, 2026 • Primary contact: Erin Au, Project Specialist ([email protected])

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Jeannine Gibson(Project Specialist)

[email protected]

(206) 305-7976

Key dates

Opened
10/15/2026
Questions due
10/23/2026
Closes
11/2/2026
Projected award
11/10/2026
Duration
5 months

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
236220
Solicitation №
2026-ITB-036

Budget estimate

$3,250,000 – $3,900,000

The solicitation lists an Owner’s estimated base bid range of $3.25 million to $3.9 million. Assuming the winning contractor’s profit margin falls between 5‑10 % (typical for public‑sector construction) and accounting for change‑order potential, the expected earnings for the contractor would likely fall within that range. Factors influencing the final budget include the final negotiated contract sum, any approved change orders, and the retention (5 %) held until project close‑out.

AI estimate from the solicitation

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