Building Division

Brookhaven Building Division
Building Division

Hours of Operation: Monday - Friday, 9:00 am - 4:30 pm
Meet with Inspectors: 9:00 am to 10:00 am
Address: 1 Independence Hill, Farmingville, NY 11738
Phone: 631-451-8696
Forms: View Building Division Online Forms
Part 1203 Report: 2017 - 2016 - 2015 - 2014 - 2013



Renew Your Building Permit or House Rental License
Many permits / licenses issued by the Town of Brookhaven Building Division may be renewed online. In order to avoid the long lines and wait at Town Hall, residents are highly encouraged to take advantage of this service. Please note that for a limited time, there will be a 10% discount applied to all renewals completed online. Renew your building permit now - renew your house rental license now.

Make a Reservation
Schedule a visit, reschedule a visit, or cancel a visit to see the Town of Brookhaven Building Division. Have your residential plans reviewed - Apply for or renew  your residential building permit - Apply for or renew your commercial building permit - Have your commercial plans reviewed - Obtain a copy of your Certificate of Occupancy (CO) or survey - Apply for an accessory apartment - Ask a question regarding an accessory apartment application - Apply for or renew a house rental license - Apply for a Certificate of Existing Use (CEU) or Letter of Correction. Make a reservation online before visiting the Building Division!

View Rental Permits
Use this interactive tool to view all current Accessory Apartment and House Rental permits in the Town of Brookhaven. Research Accessory Apartment and House Rental Permits now.

Why and When Do I Need a Building Permit?
It’s the law! The Town of Brookhaven Building Division is responsible for the administration and enforcement of the New York State Uniform Fire Prevention and Building Code and Brookhaven Town Code Section 16-3. A Building Permit is required for new homes, additions, alterations, manufactured homes, and accessory structures. Accessory structures most commonly include detached garages, sheds, decks, gazebos and swimming pools. View the following pamphlets: Sheds - Decks and Porches

Building Permit New Survey Requirements
Be advised that effective February 1, 2018, an original property survey or updated property survey no greater than one-year old showing all structures currently on the property is required to be submitted with all residential building permit applications with a few exceptions. Learn More


Mastic Beach Village
Effective January 1, 2018, Mastic Beach was absorbed into the Town of Brookhaven. Effective immediately, the Town of Brookhaven is performing the following functions:

  1. Issuance of building permits and certificates, including the review of plans, review of applications, issuance of permits, performance of inspections and issuance of certificates
  2. Issuance of house rental licenses and accessory apartment licenses; including the review of plans, review of applications and performance of inspections
  3. Response to incidents during both regular business hours and after hours; including structural determinations of fire damaged buildings, and vehicles into buildings and the evaluation of flood damaged homes
  4. Investigation of complaints and issuance of violations for PAAL (provisional accessory apartment license) and commercial property violations
  5. Evaluation of Superstorm Sandy damaged homes

How long is a Building Permit valid?
A Building Permit is valid for one year from the date it was issued. A Demolition Permit is valid for 90 days from the date it was issued.

When do I get my Certificate of Occupancy?
Upon completion of your final inspection, the Building Division will mail a list of the requirements for a CO. To complete the process, you may be required to get a lead solder test, new survey, and/or an electrical inspection, as well as approvals from various agencies depending on your particular project.

How long does it take to get a Building Permit?
The Building Division is open Monday through Friday between the hours of 9:00 am and 4:30 pm. If the Plans Examiner approves your plans and all of your Building Permit paperwork is in order, your building permit may be issued the same day. Please be aware that the process may take all day, so please be prepared.