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1. 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.

2. 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 certificate of occupancy. 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.

3. 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:

• Decks and porches (PDF)
• Detached garages
• Gazebos
• Sheds (PDF)
• Swimming pools

4. Who do I call to mark out my utilities before I dig?

You can call New York 811 at 1-800-272-4480 or 811. You can also visit their website at newyork-811.com for more information. Homeowner FAQ, Excavator FAQ