Can I sell a Bellingham ADU separately?
✓ Verified against code · August 20, 2026
Yes, and there are two routes with different consequences. An ADU may be condominiumized and sold separately from the main house. Subdividing a detached ADU onto its own lot is also possible, but that path triggers an affordable-housing deed restriction under BMC 20.29 — so confirm which mechanism you are using before you assume the unit is freely saleable.
Citation: BMC 20.10.036; BMC 20.29
How current is this?
Bellingham’s ADU rules run under BMC 20.10.036 (Accessory Dwelling Units) (Ordinance 2025-12-035 §2). Bellingham completed its HB 1337 alignment in Ordinance 2025-12-035, effective December 23, 2025 — roughly six months after the state's June 30 deadline. Two of the standards below rest on interim ordinances rather than permanent code: the citywide elimination of parking minimums, and the companion infill regulations that sunset in December 2026. We verified this answer against primary sources on August 20, 2026, and every change we catch is logged in the changelog.
More Bellingham ADU questions
- How many ADUs can I build in Bellingham?
- How tall can a detached Bellingham ADU be?
- Can I Airbnb my Bellingham ADU?
- Can I sit a Bellingham ADU on the alley line?
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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.