Key takeaways
- Most structural, electrical, plumbing and mechanical work needs a permit.
- Permit rules differ by city and county, so check with your local office.
- Inspections happen at set stages and must pass before work is covered.
- Your contractor should handle the permit process with you.
What usually needs a permit
New homes, additions, structural changes, decks, garages, and most electrical, plumbing and HVAC work require permits. Cosmetic work like painting or flooring often does not.
When in doubt, call your local codes office before starting.
Who applies and who is responsible
In most cases, the licensed contractor applies. Owners who act as their own builders take on responsibility for the work and the inspections. Ask your contractor how permits are handled and who pays for them.
Keep copies of every permit and inspection record.
Inspections at each stage
Inspectors check footings, framing, rough-in work for electrical, plumbing and mechanical systems, insulation and the final job. Work usually cannot be covered until it passes.
Missed inspections can cause delays and expensive rework.
Local differences
Nashville, Williamson County, Rutherford County and other jurisdictions each have their own offices, forms and timelines. Historic districts and HOAs may add review steps.
Your builder should know the local process and give you a realistic timeline.
Official sources and further reading
- Metro Nashville Codes Administration
- Tennessee Board for Licensing Contractors
- Call 811 Before You Dig
These are independent organizations. Links open in a new tab.
Quick answers
Can I skip a permit for a small project?
Not if the work requires one. Unpermitted work can cause problems when you sell or file an insurance claim.
How long do permits take?
It varies by place and by workload. Your builder can give you a current estimate.
