How tall can a detached ADU be in Lynnwood?
✓ Verified against code · August 19, 2026
Up to the RN detached-configuration limit of 35 ft — a proposed ADU-specific 24-ft cap was dropped before adoption.
Citation: LMC 8.30 building-form tables
How current is this?
Lynnwood’s ADU rules run under LMC Title 8 (Unified Development Code) — no standalone ADU section (Ordinance 3481 (amended by Ords 3492, 3507)). Lynnwood didn't amend its ADU code — it replaced its entire development code. The 2025 Unified Development Code (Ord 3481) scrapped Titles 18/19/21, and ADUs are now regulated as ordinary dwelling units under a units-per-lot model, with the details still being amended by cleanup ordinances. Anything describing 'Lynnwood's ADU chapter' predates the UDC. We verified this answer against primary sources on August 19, 2026, and every change we catch is logged in the changelog.
More Lynnwood ADU questions
- Where are Lynnwood's ADU rules?
- How many ADUs can I add in Lynnwood?
- Do I need parking for a Lynnwood ADU?
- Are Lynnwood's pre-approved DADU plans available?
All Lynnwood 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.