What enforcement typically looks like
Authorities differ, but the escalation pattern is consistent.
- A stop-work order halting all activity on the site.
- Investigation or after-the-fact permit fees, often a multiple of the ordinary fee.
- Required exposure of covered work so it can be inspected.
- Orders to correct or, in some cases, to remove the work.
- Daily fines while the violation remains open.
The costs that arrive later
An unpermitted addition can be excluded from an appraisal's square footage, complicate or delay a closing, trigger a title or disclosure issue, and give an insurer grounds to dispute a claim tied to the work. Buyers' lenders frequently require the permit to be closed out before funding.
How a retroactive permit usually works
Most departments have a path to legalize existing work. It normally requires an application describing what was built, drawings documenting the as-built condition, and inspection of concealed elements — which can mean opening walls, ceilings, or excavation to expose footings.
- As-built drawings of the completed work.
- Engineering where structural elements were altered.
- Exposure of concealed framing, electrical, or plumbing for inspection.
- Payment of investigation or after-the-fact fees.
- Correction of anything that does not meet the code in force.
Which code applies to old work
Some authorities review as-built work against the code in force when it was built, if you can document that date; others apply the current code. This determination affects cost substantially, so ask early and in writing.
Coming forward voluntarily
Departments generally treat a voluntary application more favorably than a complaint-driven investigation, and the fee structure sometimes reflects that. Waiting until a sale is under contract removes every option that requires time.