Departments  >  Planning and Environment  >  Division of Building
Contact Info
One Independence Hill
Farmingville, NY 11738
(631) 451-6333, phone

Building Division Hours of Operation
9:00 a.m. to 4:30 p.m. Monday through Friday
9:00 a.m. to 10:00 a.m. Monday through Friday to meet with Building Inspectors

It is recommended that you arrive early in the day as later arrival times on a busy day may create an application backlog causing your application not to be processed.
Building Division

Renew Your Building Division Permit Online
Many permits issued by the Town of Brookhaven Building Division may be renewed online! Additionally, house rental licenses can be renewed online too! The following building permit renewals may be available for renewal online: Original agent/expediter continues to represent owner of property or the Owner now represents themselves. Please note that if a new agent/expediter is used this renewal cannot be processed online --- Ownership has not changed for the permit being renewed --- No Town Violations --- Work is Complete --- No change in the scope of work --- No additional structures or improvements, other than described in the scope of work, have been made to the property since the permit was issued. Renew your building permit now --- Renew your house rental license now
Make a Reservation to See the Building Division
Schedule a visit, reschedule a visit, or cancel a visit to see the Town of Brookhaven Building Division. Get your residential plans reviewed --- Apply for or renew  your residential building permit --- Apply for or renew your commercial building permit --- Have your commercial plans be reviewed --- Obian 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 --- Appy for a Certificate of Existing Use (CEU) or Letter of Correction. Make a reservation online before visiting the Building Division!
Look Up Accessory Apartment and House Rental Permits in the Town of Brookhaven
Use this interactive tool to view all current Accessory Apartment and House Rental permits in the Town of Brookhaven. You can search for permits by choosing a city and street. At this time, all existing Accessory Apartment and House Rental permits on the chosen street in the chosen city will be displayed. Look up 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 Building Permit Requirements --- View all Building Division Online Forms
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 paper work 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.
How long is a Building Permit valid?
A Building Permit is valid for one year 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 project. After all CO requirements are satisfied you will be issued a CO within three days.