Jurisdiction
ADUs in Spokane Valley
These rules apply to lots inside the City of Spokane Valley, which is a separate jurisdiction from the City of Spokane and from unincorporated Spokane County. Spokane Valley maintains its own municipal code and permit center.
Spokane Valley is its own jurisdiction
Spokane Valley incorporated as its own city, so it does not follow the City of Spokane code or the unincorporated county code. If your parcel is inside Spokane Valley city limits, use the Spokane Valley Municipal Code and the city permit center as your sources. The standards below are flagged for verification against those city sources.
Spokane Valley ADU rules at a glance
Each value is a verification placeholder until confirmed against the Spokane Valley Municipal Code and permit center. Do not rely on a figure here until the operator replaces its placeholder with a cited value.
| Rule | Current Spokane Valley standard |
|---|---|
| Allowed ADU types | [VERIFY: operator to confirm which ADU types Spokane Valley permits (detached, attached, junior ADU) from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Maximum ADUs per lot | [VERIFY: operator to confirm the maximum number of ADUs per lot in Spokane Valley after HB 1337 from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Maximum ADU size | [VERIFY: operator to confirm the maximum ADU size and any percent-of-primary cap in Spokane Valley from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Maximum height | [VERIFY: operator to confirm the maximum ADU height in Spokane Valley from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Setbacks | [VERIFY: operator to confirm ADU setbacks under the Spokane Valley Municipal Code from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Off-street parking | [VERIFY: operator to confirm the Spokane Valley off-street parking requirement, accounting for HB 1337 limits from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Owner-occupancy | [VERIFY: operator to confirm whether owner-occupancy is required in Spokane Valley, given HB 1337 from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
| Permit fees and charges | [VERIFY: operator to confirm current Spokane Valley ADU permit fees and any applicable charges from https://www.spokanevalleywa.gov (Spokane Valley Municipal Code and Permit Center)] |
The permit process in Spokane Valley
ADU permitting in Spokane Valley runs through the city permit center, which reviews zoning and building requirements and issues permits. Confirm the current submittal checklist, review timeline, and fees with the city. Our homeowner permit guide explains what to expect across the Spokane-area jurisdictions.
Spokane Valley ADU questions
- Does Spokane Valley have its own ADU rules?
- Yes. The City of Spokane Valley is a separate jurisdiction with its own municipal code and permit center. Its ADU rules can differ from the City of Spokane and from unincorporated Spokane County, so confirm the Spokane Valley standards if your lot is inside the city.
- Where do I apply for an ADU permit in Spokane Valley?
- ADU permits in Spokane Valley are handled through the city permit center. The builder you are matched with manages the submittal and review with the city. Our Spokane ADU permits guide explains the general steps.
- Did HB 1337 change Spokane Valley ADU rules?
- Washington HB 1337 (2023) directed Growth Management Act jurisdictions to update ADU rules, which can affect ADU count, owner-occupancy, and near-transit parking. Confirm how Spokane Valley has implemented HB 1337 before relying on older figures.
References and primary sources
Regulatory and fee specifics on this page should be confirmed against the current primary sources below. Items marked VERIFY are pending operator confirmation before promotion.
- City of Spokane Valley (spokanevalleywa.gov) Spokane Valley Municipal Code and the city permit center.
- Washington HB 1337 and RCW 36.70A State ADU law and the Growth Management Act.
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