⚡ Quick Answer
Most structural changes, electrical work, plumbing, HVAC, and projects over a certain square footage require a permit. Small cosmetic work (painting, flooring, minor repairs) typically does not. Check your specific project type below.
Select your project to get specific requirements, costs, and when a permit is — and isn't — required.
Protect Your Investment
Unpermitted work can surface during a home sale, causing delays or price reductions. Buyers' inspectors and lenders often flag unpermitted additions or electrical work.
Safety First
Permits ensure work is inspected to code. Electrical fires, structural failures, and plumbing leaks are more common in unpermitted work.
Avoid Costly Penalties
Fines for building without a permit can range from $500 to over $10,000. In some cases, you may be required to demolish and redo the work. Learn about penalties →
Insurance Coverage
Your homeowner's insurance may not cover damage or liability from unpermitted structures or work. A permit protects your policy.
Frequently Asked Questions
Do I need a permit for small projects?
It depends on your jurisdiction and the scope of work. Most municipalities require permits for structural changes, electrical work, plumbing, and projects over a certain size threshold. Always check with your local building department before starting.
What happens if I build without a permit?
Building without a required permit can result in fines, stop-work orders, required demolition of unpermitted work, difficulty selling your home, and insurance complications. Penalties vary by jurisdiction but can be significant.
How much does a building permit cost?
Building permit costs range from $50 to several thousand dollars depending on the project type, location, and value of the work. Simple permits like fences or sheds may cost $25–$200 while major additions can cost $500–$2,000+.
How long does it take to get a permit?
Permit timelines vary widely. Simple permits can be approved same-day or in a few days. Complex projects like additions or ADUs may take weeks to months depending on your local building department's workload.
Can a homeowner pull their own permit?
In most jurisdictions, homeowners can pull permits for work on their primary residence. However, electrical, plumbing, and HVAC work often still requires a licensed contractor to perform the actual work even if the homeowner pulls the permit.