
ADU plans for Kitsap County
All six county pre-approved plans, free to use as drawn in eligible areas, with notes on rural lots and custom needs. Filter, compare up to three, and test-fit any plan on your lot.






Tick “Compare” on up to three plans to see them side by side. Kitsap and Salish footprints come from the architect's cut sheets; the others are approximate. Renderings: Kitsap pre-approved ADU program (Artisans Group).
How the free county program works
Kitsap County and the cities of Bainbridge Island, Bremerton, Port Orchard and Poulsbo commissioned these six designs from Artisans Group through the Kitsap Regional Coordinating Council. The plan sets are free to use in those cities and the urban areas of unincorporated Kitsap, including Silverdale and Kingston. Rural-zoned lots can use them for a fee: a Conditional Use Permit, its fees, and a $1,000 design fee.
You can choose finishes, colors, roof style, siding, doors, windows and lighting. You can't make structural changes and keep the plan's pre-approved status. Read the full program guide →
What we do around the free plan
We never charge for the county plans. We charge for the work the plan doesn't cover:
| Service | Price |
|---|---|
| Parcel check: which plans fit your lot | Free |
| Site plan and permit package | Quoted after the free parcel check |
| Construction | Usually $325–$550 per SF for the building, by finish level; site work and septic priced separately |
Step 1 · Your property
Can you use the free pre-approved plans?
The plans are free in Bainbridge Island, Bremerton, Port Orchard, Poulsbo and the urban areas of unincorporated Kitsap. Rural lots can use them for a fee. Pick where your lot is.