Spokane metro ADU matching
Get matched with a licensed local Spokane ADU builder
Lilac City ADU connects homeowners across the City of Spokane, unincorporated Spokane County, and Spokane Valley with licensed local ADU builders. It is free to you. We are paid by the builder, not by you.
What is an ADU?
An accessory dwelling unit (ADU) is a smaller, self-contained second home on the same lot as a primary house. It can be a detached backyard unit, an attached addition, a garage conversion, a basement unit, or a junior ADU. Spokane-area homeowners build them for rental income, multigenerational living, guest or office space, and added property value.
What we do
We are a marketing and matching service, not a contractor. We connect you with a licensed local ADU builder who serves your jurisdiction, and we publish current, sourced guides on Spokane ADU rules, permits, and cost. The builder you are matched with handles design, permitting, and construction.
How getting matched works
- 1
Tell us about your project
Share your jurisdiction, the ADU type you are considering, and a few notes about your lot and timeline. It takes a couple of minutes.
- 2
We match you with a local builder
We connect you with a licensed local ADU builder who serves your jurisdiction in the Spokane area.
- 3
You talk directly with the builder
The builder you are matched with handles design, permitting, and construction. You contract with them directly. There is no obligation.
The three Spokane jurisdictions we serve
All locations →ADU rules differ by jurisdiction, so the first step is identifying which one your lot falls under. Each page carries the current rules, with regulatory specifics cited or flagged for verification.
Jurisdiction
City of Spokane
ADU rules for homeowners inside Spokane city limits.
See the rules →Jurisdiction
Unincorporated Spokane County
County ADU rules for parcels outside any city, with the BP-75 and BP-76 sheets.
See the rules →Jurisdiction
Spokane Valley
ADU rules and the permit center for the City of Spokane Valley.
See the rules →ADU types we match for
Detached ADU
A standalone backyard home on the same lot as the main house.
Learn more →Attached ADU
A unit attached to the existing home, or an addition built for one.
Learn more →Garage Conversion
Converting an existing garage into a livable accessory dwelling unit.
Learn more →Basement and JADU
Interior conversions, including basement units and junior ADUs.
Learn more →Start with these guides
Guide
ADU Cost in Spokane
A sourced, Spokane-specific breakdown of what an ADU costs in 2026.
Read more →Guide
ADU Permits in Spokane: A Homeowner Guide
A plain-language walkthrough of the ADU permit process by jurisdiction.
Read more →Guide
Can I Build an ADU on My Lot in Spokane?
A feasibility checklist: zoning, lot, utilities, and your jurisdiction.
Read more →Get matched with a Spokane ADU builder
Tell us about your lot and project. We connect you with a licensed local builder who serves your jurisdiction. It is free to you, with no obligation.