Most deals that fall apart over permits do so late, after an inspection report or an appraisal raises a question nobody asked earlier. Three questions, answered before the listing goes live, take most of that risk off the table.
1. Was every addition and conversion permitted and finaled?
Washington's seller disclosure asks directly whether all building permits and all final inspections were obtained for conversions, additions and remodeling. In both states, finished space that is not in the permit record shows up in inspections and appraisals. Pull the permit history and compare it to the house.
2. Are there any open or expired permits?
A permit issued but never finaled stays on the record. Portland expires issued permits after 180 days without activity, and Seattle construction permits typically expire 18 months after issuance. An open permit is often quick to close if caught early, and slow if found during escrow.
3. What could a buyer build here?
For many buyers, the lot is the value: an ADU, a second unit, a lot split, a shop. Washington's state rules allow two ADUs per lot inside most urban growth areas, and Oregon allows middle housing land divisions. Knowing what the lot allows lets the listing sell that potential instead of leaving buyers to guess.
How to get the answers fast
A short report on zoning, permit history, constraints and the permit path answers all three before the listing photos are taken, and gives the agent something concrete to share with buyers.
Frequently Asked Questions
Should I check permits before listing a house?
Yes. Unpermitted work and open permits are easier and cheaper to address before the listing than during escrow.
What does a Washington seller have to disclose about permits?
The seller disclosure statement asks whether all building permits and final inspections were obtained for conversions, additions and remodeling.
Can I tell buyers whether they can build an ADU?
Only after checking zoning, utilities and constraints for that lot. A site report gives a written answer to share.
Sources
Insights are general information researched from published sources on the date shown. Rules change, so confirm with the permitting authority before you act.
