On this page 6
When a permit is required
Permit triggers and exempt work for Brookhaven
Building permits are required for most construction in unincorporated Town of Brookhaven.
Note: Brookhaven accepts new residential and commercial permit applications online and lists many example permit types, including additions, decks, pools, solar, conversions, demolition, and repairs.
- Building permit application
- Site plan
- Construction plans
- Owner information
- Building code
- New York State Uniform Fire Prevention and Building Code; New York State Energy Code
- Permit validity
- Typically 6 months to 1 year from issuance.
- Contractor requirements
- Contractors must be properly licensed and insured.
Application process
Typical processing: Typically 2-4 weeks for complete applications.
- 01 Use Brookhaven's online permit tools for new residential/commercial permit applications and renewals.
- 02 Submit plans review materials and supporting documents before work starts.
- 03 Complete required inspections and CO/CC closeout.
Typical processing time: Typically 2-4 weeks for complete applications.
Fee schedule
Brookhaven building permit fees
Required inspections
Scheduling and sequence
- (631) 451-8696 (phone)
- Inspection hours
- Monday-Friday, standard business hours
Typical sequence: Varies by project type.
Frequently asked
Common questions about Brookhaven permits
01 Do I need a building permit in Brookhaven, NY? ▸
02 How much does a building permit cost in Brookhaven, NY? ▸
03 How do I apply for a building permit in Brookhaven, NY? ▸
04 How long does it take to get a building permit in Brookhaven, NY? ▸
05 How do I schedule a building inspection in Brookhaven, NY? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Town of Brookhaven Building Division before applying. Jaspector is not legal advice.