Do I need parking for a Bellevue ADU?
✓ Verified against code · August 19, 2026
Not if the ADU is under 1,000 sq ft, and not if you're within a half mile of a major transit stop. Otherwise, one space in addition to the main house's parking.
Citation: LUC 20.20.120.C.5
How current is this?
Bellevue’s ADU rules run under LUC 20.20.120 (Land Use Code) (Ordinance 6851). Detached ADUs were prohibited entirely in Bellevue until Ordinance 6851 (adopted June 24, 2025, effective early July 2025). The 2023 ADU reform (Ord 6746) removed owner-occupancy and registration for attached ADUs only — it did not legalize DADUs, despite what several guides claim. Anything describing Bellevue DADU rules with a pre-July-2025 date is describing a prohibition. We verified this answer against primary sources on August 19, 2026, and every change we catch is logged in the changelog.
More Bellevue ADU questions
- Can I build a detached ADU (backyard cottage) in Bellevue?
- How big can a Bellevue ADU be?
- Do I have to live on the property to rent out an ADU in Bellevue?
- Are Bellevue's pre-approved DADU plans available yet?
- Attached or detached — which is easier under Bellevue zoning?
All Bellevue ADU rules → · Compare Washington cities →
Not legal advice — lot-specific overlays can change the answer for your parcel. The citation above points at the governing code section; check it, or ask the city to confirm.