What the final inspection checks
The SDCI inspector walks the cottage with the GC and verifies:
- All prior inspections passed and signed off.
- Required tests (blower-door, duct leakage) on file.
- Smoke and CO detectors installed and operational.
- Address numbers visible from the street.
- Egress operable (windows that count as egress open as required).
- Stair and guard heights / spacing.
- All systems (electrical, plumbing, HVAC) finished and functional.
- Site work — drainage, hard surfaces — matches the approved plan.
- Final landscaping or stabilization (if required).
If anything fails, the inspector issues a punch list. The GC corrects, then requests re-inspection.
When you get the CofO
When the final inspection clears, SDCI issues the Certificate of Occupancy (CofO). From that moment on, the cottage is legally a dwelling. Until then, it's not legal to occupy.
Why the CofO matters before move-in
Three concrete reasons to wait:
- Code status. SDCI treats a pre-CofO occupied cottage as a code violation. That can mean fines and a stop-occupancy order.
- Insurance coverage. Builder's Risk policies generally exclude occupied buildings, and homeowner / landlord policies generally exclude unfinished ones. A loss in the gap is uncovered.
- TRAO exposure. Once a tenant occupies, Seattle's Tenant Relocation Assistance Ordinance can apply on lease termination, even if the initial occupancy was technically illegal.
CofO is usually issued within 1-3 weeks of the final inspection request — short relative to the rest of the project.
Where this information came from
- SDCI — Construction Permit, Establishing Use · retrieved April 23, 2026
- SDCI Tip 120 — Getting a Certificate of Occupancy · retrieved April 23, 2026
- SDCI — Tenant Relocation Assistance Ordinance · retrieved April 23, 2026