When do I need a building permit?
Building permits are typically required for:
• All new buildings
• Any additions to or modifications to existing buildings
• Any new or modifications to electrical, plumbing or HVAC
• Any new or modifications to fire alarms and fire suppression systems
• A new tenant to a commercial space to obtain an inspection to occupy (Contact the Small Business Advocate prior to signing a lease or purchase agreement for commercial property.)
• Changing the use and/or occupancy of a building (Contact the Small Business Advocate prior to signing a lease or purchase agreement for commercial property.)
• Nuisance structures designated by the Housing Inspection Division
• Special inspection following a fire or other damage to a structure
• Demolition of a structure
• Accessory buildings, such as a garage or storage building.
• Temporary structures such as construction trailers or tents
• Construction or modifications to telecommunications structures, including cell towers and monopoles

Call 937-333-3883 if you have specific questions.
Building Permit Required page.

Show All Answers

1. What is a building permit?
2. When do I need a building permit?
3. How can I find out the permit fees for my project?
4. Why do I need a building permit?
5. If my building or house has had a fire or has been damaged by a vehicle or a storm, what do I need to do?
6. When don’t I need a building permit?
7. When do I not need a plumbing, electrical or mechanical permit?
8. How do I apply for a permit?
9. What building codes does the City of Dayton enforce?
10. Where is the Division of Building Inspection located?
11. When do I need to submit plans?
12. Can I apply for a permit online?
13. How long does it take to get a permit?
14. How many copies of plans are required for permit review?
15. How many copies of revised plans are needed?
16. How do I arrange for an inspection?
17. What should I know about inspections during construction?
18. How do I know if a property is within the Dayton city limits?
19. How do I know if a building is in a historic district with special requirements?
20. How do I find out what abandoned property is being sold by the City?
21. What is required to get electric service connected?
22. What is required to get natural gas service connected?
23. What are the hours of operation for the Building Inspection Permit Counter?
24. What services are provided at the One Stop Center (371 W. 2nd St.)?