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Washington KING COUNTY LIBRARY SYSTEM·Washington

KCLS ITB Reimagining Spaces Kent Library - General Contractor

Closes 12/1/2026$3.3M – $3.9MInvitation for BidLogin required
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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 scope covers demolition, re‑configuration of interior spaces, upgrades to restrooms, accessibility, structural, mechanical, electrical, plumbing, fire‑protection, low‑voltage, and life‑safety systems, as well as installation of finishes, casework, fixtures, signage, and integration of owner‑provided shelving and technology. The project must be completed within a five‑month construction window, adhering to Washington prevailing‑wage rules, apprenticeship utilization, and extensive insurance and bonding requirements.

Attached files

Contact

Erin Au(Contract Administrator)

[email protected]

(425) 369-3200

Key dates

Opened
10/15/2026
Questions due
10/23/2026
Closes
12/1/2026
Projected award
11/23/2026
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 estimated base‑bid range of $3.25 M to $3.90 M. Assuming the contractor’s profit margin on a public‑works project of this size typically falls between 5‑10 %, the expected net earnings would be roughly $160 k to $390 k. However, the client’s gross contract revenue will be the full bid amount, so the budget estimate is stated as the contract value range. Factors influencing the final amount include change orders, any required overtime, and the retainage (5 % withheld until final acceptance).

AI estimate from the solicitation

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