Who owns which inspection
Each licensed trade — electrical, plumbing, mechanical — is responsible for their own permit and their own final inspection, signed off under their license. The GC coordinates the schedule and is responsible for the building-permit-level inspections at PP&D (foundation, framing, energy code, final). If an inspector finds correction work, the GC owns getting it fixed before the next inspection.
What happens
Final inspections happen after all visible work is complete. Each discipline that did a rough-in comes back:
- Building final (PP&D) — verifies finished work matches plans
- Plumbing final — fixture installation, water heater, pressure
- Electrical final — devices installed, GFCI/AFCI verified, grounding bonded
- Mechanical final — heat pump operational, ventilation working
- BES final — stormwater facility built and connected
- Urban Forestry final (if mitigation plantings were required) — verifies trees planted
How to schedule
- Try to schedule all the trade finals within the same week — each one needs the GC or sub on site.
- Schedule the building final last; it depends on the others passing.
- Each inspection is a separate DevHub request or call to PP&D's inspection line, 24-48 hours ahead.
What gets caught at final
- Missing GFCI in a wet location
- Smoke and CO detector placement
- Bath fan ventilation rate
- Handrail heights
- Egress dimensions on bedroom windows
- Hose bib backflow preventers
All easy to fix, but you don't want to find out at final. A GC pre-final walk-through usually catches them.
Where this information came from
- Portland Permitting & Development — Accessory Dwelling Units · retrieved April 23, 2026
- Portland City Code Title 33.205 — Accessory Dwelling Units · retrieved April 23, 2026
- Portland Maps (per-address zoning, hazards, utilities) · retrieved April 23, 2026
- Portland PP&D — System Development Charges (current fee schedules) · retrieved April 23, 2026
- Oregon CCB — Verify a Contractor · retrieved April 23, 2026
- Accessory Dwellings (Kol Peterson) — Portland-focused ADU resource · retrieved April 23, 2026