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Civil Engineering for Infill Housing

Active
State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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This subcontract for Civil Engineering for Infill Housing supports prime contractors on City of Seattle Office of Planning and Community Development infill projects. The scope of work involves performing infrastructure assessments and site requirement analyses to ensure all low-income homeowner sites comply with City of Seattle NR zoning specifications. The selected provider will be responsible for delivering comprehensive engineering site plans and detailed infrastructure reports. The opportunity is categorized under NAICS code 541330 and was posted on August 12, 2026. Interested parties must submit their responses by the deadline of September 26, 2026. This project is managed by the Office of Planning and Community Development within the state of Washington.

General Info

Civil engineering subcontract for Seattle infill housing infrastructure assessments and site plan delivery.

Agency

Washington → Office of Planning and Community DevelopmentView Agency

NAICS

541330 - Engineering ServicesView NAICS

Place of Performance

WA, USA

Set-Aside

NONE

Documents

This scope was carved out of OPCD-RFP-2026_LHD.

The full solicitation package (7 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Legacy Homeowner Development Support

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Timeline

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Organization & Contact Information

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AgencyWashington → Office of Planning and Community Development
ContactsNo contacts available
OfficeN/A
Organization / Agency
Washington → Office of Planning and Community Development
View Agency Profile
Office AddressN/A
ContactsNo contact information available

Full Description

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Performs infrastructure assessment and site requirement analysis for prime contractors on City of Seattle OPCD infill projects. Ensures compliance with City of Seattle NR zoning specifications for low-income homeowner sites. Delivers engineering site plans and infrastructure reports.

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Kiewit Infrastructure West Co.

POSTED

about 9 hours ago

DEADLINE

in 20 days
View Details

More opportunities from Washington → Office of Planning and Community Development

Same awarding agency

NAICS: 925120
SLED
Legacy Homeowner Development Support
Solicitation # OPCD-RFP-2026_LHD
The City of Seattle Office of Planning and Community Development is soliciting proposals for the Legacy Homeowner Development Support program to assist low-income legacy homeowners in utilizing new Neighborhood Residential zoning and Washington House Bill 1110 for infill housing development. Funded by a HUD PRO Housing grant, the program aims to guide 20 to 30 homeowners through the pre-development process to catalyze middle housing and stabilize low-income residents. The scope is divided into two workstreams: one focused on education and networking through community events, and another providing direct, one-on-one technical assistance including regulatory feasibility analysis, project costing, pro forma development, and permitting support. The total maximum funding available for selected consultants is 1,347,500 dollars, with individual limits of 200,000 dollars for community event consultants and 500,000 dollars for pre-development consultants. The anticipated contract execution is by November 25, 2026, with a performance period extending through June 30, 2029. Awardees must comply with federal CDBG regulations, the Build America, Buy America Act, and City of Seattle labor and non-discrimination ordinances. Selection is based on a ranking of written proposals and potential interviews, with a strong emphasis on culturally conscious engagement and the inclusion of woman and minority-owned businesses.
Administration of Urban Planning and Community and Rural Development

POSTED

29 days ago

DEADLINE

in 16 days
View Details
NAICS: 236115
SLED
Partnership for ADU Development (PAD) Partner
Solicitation # OPCD-RFQ-2026_PAD
The City of Seattle Office of Planning and Community Development is seeking a Partnership for ADU Development (PAD) Partner to pilot a co-development model that assists low- and moderate-income homeowners in creating infill housing. Under this model, a nonprofit partner provides technical assistance, secures funding from public and philanthropic sources, and manages the construction of two backyard homes. The partner operates these units as rental housing for tenants earning up to 80 percent of the area median income for approximately 10 years, providing the homeowner with monthly ground lease payments until the homeowner eventually buys out the partner. The PAD Partner is responsible for the entire development lifecycle, including visioning, lot splitting, permitting, construction, and property management, while the homeowner retains full ownership of the overall property. This negotiated agreement, funded by the U.S. Department of Housing and Urban Development and the Seattle City Council, runs through June 30, 2029. The selected consultant will be reimbursed at an hourly rate and must comply with extensive federal and local regulations, including the Build America, Buy America Act, Section 109 non-discrimination requirements, and the City of Seattle's Paid Sick and Safe Time ordinance. Mandatory submission requirements include the City of Seattle Vendor Questionnaire for Federal Aid Contracts, certifications regarding lobbying and debarment, and verification of WMBE status. The contract emphasizes social equity, requiring the inclusion of woman and minority-owned businesses in subcontracting and ensuring all deliverables meet ADA and accessibility standards.
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POSTED

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DEADLINE

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