City program

Pre-Approved ADU Plans in Olympia, Washington

Browse official and accepted pre-approved ADU plans for Olympia, Washington. Compare plan size, bedrooms, providers, approval status, official source links, permit requirements, and fees.

Program status: source-backed listings Last checked Aug 12, 2026

Program Overview

This Olympia page summarizes source-backed pre-approved ADU plan listings for Olympia, Washington, using official records tied to City of Olympia and Cities of Olympia, Lacey, and Tumwater. The current public dataset lists 6 accepted plans from 1 provider; provider names include Artisans Group. The accepted listings are tied to the local Olympia program. Plan records cover 480 to 1,000 sq ft and studio to 3 bedrooms where those fields were listed by the source.

Permit and fee context is kept separate from plan acceptance. The public dataset includes 4 permit requirement records and 2 fee records for Olympia. Permit requirement records include Site plan and zoning review, Utilities and stormwater, and others. Fee records include Plan document fee and Permit and impact fees. When a source did not publish a value, the page keeps that field as Not listed in source instead of filling a blank.

Use these listings as a starting point for matching a plan to a property. Source links, checked dates, acceptance notes, and provider records are shown so you can verify whether a plan remains accepted locally, what site-specific review remains, and whether local fees, plan licensing, or provider terms apply. A listing in this directory does not guarantee permit approval for a specific parcel.

Summary

Location
Olympia, Thurston County, Washington, USA
Accepted plans
6 accepted plans
Providers
1 provider
Origin programs
1 program
Plan size range
480 to 1,000 sq ft
Permit sources
2 sources

How to use this page

  1. Pick a plan size and bedroom count.
  2. Check whether the plan originated locally or is accepted from another city/county program.
  3. Open the official source.
  4. Confirm current status with the local building department.
  5. Ask the provider what site-specific work, plan licensing, engineering, and utility review are still required.

Accepted Plans

6 plans

Permit Requirements

4 requirements

Site specific

Site plan and zoning review

Official city source

Lot coverage, setbacks, height, design, and site placement are reviewed for each project.

Last checked
Aug 12, 2026
Notes
Not listed in source

Site specific

Hazard and historic review

Government PDF

Historic, environmental, steep-slope, and flood constraints may require additional review.

Last checked
Aug 12, 2026
Notes
Not listed in source

Fees

2 fee records

Official Sources

2 sources

Olympia ADU FAQ

6 answers

Does Olympia have accepted or pre-approved ADU plans in this directory?

Yes. The current Olympia, Washington page lists 6 accepted plans from 1 provider in the source-backed export.

What ADU plan sizes are listed for Olympia?

The listed Olympia plan records range from 480 to 1,000 sq ft. Use the individual plan cards to confirm bedrooms, bathrooms, plan documents, and provider details because some fields are not listed by every official source.

Where do the Olympia ADU plan records come from?

They are tied to 2 official sources in this page's source set, including City of Olympia and Cities of Olympia, Lacey, and Tumwater. Each plan, fee, and permit note should still be checked against the linked official source before use.

Can Thurston County or nearby city ADU plans be used in Olympia?

The current Olympia records do not show accepted plans from a separate Thurston County or nearby city program. Treat outside pre-approved plans as unavailable in Olympia unless an official Olympia source says they are accepted.

Do pre-approved ADU plans guarantee permits in Olympia?

No. A source-backed accepted plan can reduce plan review work, but Olympia can still require site-specific review, zoning checks, fees, utility coordination, and current code compliance. This page lists 4 permit requirements to help flag items to verify with the local building department.

Are Olympia ADU permit fees and requirements listed?

This page includes 2 fee records and 4 permit requirements for Olympia. These are source-backed summaries, not a final permit quote or approval checklist.