
Town of Oyster Bay Building Permits
Get your permit filed or your violation fixed. Free quote.
The Town of Oyster Bay includes places like Syosset, Woodbury, Hicksville and Massapequa. The Town's rule: fences over 4 feet, decks over 8 inches high and sheds over 100 sq ft need a permit.
Town of Oyster Bay Building Department (not us)
- Address
- 74 Audrey Ave, Oyster Bay, NY 11771
- Phone
- 516-624-6200
- Permit rules
- Projects that need a permit
- Local code
- Code of the Town of Oyster Bay
Town of Oyster Bay Building Permit Fees
A building permit in the Town of Oyster Bay costs $125 for the first $1,000 of valuation, plus $14 for each additional $1,000, and a $100 application fee.
| Permit | Fee |
|---|---|
| Application fee | $100, non-refundable |
| Building permit | $125 for the first $1,000 of valuation, plus $14 per additional $1,000 |
| Certificate of occupancy | $40 for the first $1,000 of valuation, plus $4 per additional $1,000 |
| Certificate of completion | $40 |
| Residential A/C or HVAC unit | $125 per unit |
| Permit to maintain an existing structure | 3 times the fee (2 times for pools, fences, A/C and solar) |
Source: Town of Oyster Bay: Planning and Development Schedule of Fees, effective June 1, 2025 (PDF) (opens in a new tab). Checked .
Places in the Town of Oyster Bay
The Town's Building Department handles
- Massapequa
- Hicksville
- Woodbury
- Locust Valley
- Plainview
- Bethpage
- Glen Head
- Greenvale
- North Massapequa
- Oyster Bay
- Syosset

Selling your house? Close your open permits first.
How We Help in Oyster Bay
- We order your survey, with no markup, and file for you.
- Need a variance? We refer you to a zoning/land-use attorney.
Decks, fences, sheds and pools: about 2–4 weeks. Other jobs: about 4–8 weeks on average.* It varies by town and scope.*Typical time is based on an average job in the Town of Oyster Bay, assuming no extra work or construction needs to be done and the building department accepts the permit application.

Oyster Bay Permit Questions
What work needs a permit in the Town of Oyster Bay?
Most building work (like an extension), plumbing (like a new bathroom) and public assembly (like an event in a store or hall). Rentals need a rental permit too, but we don't file those.
What counts as a violation?
Illegal housing, work done without a permit, or structural changes that were never approved. They can lead to fines and unsafe homes.
What happens if I don't close a permit?
It can mean fines, or a sale that can't close.

Hours
- Monday
- 8:30am–8:30pm
- Tuesday
- 8:30am–8:30pm
- Wednesday
- 8:30am–8:30pm
- Thursday
- 8:30am–8:30pm
- Friday
- 8:30am–8:30pm
- Saturday
- Closed
- Sunday
- Closed
After-hours and weekend messages are answered the next business day.
Prefer to talk? Call or text 516-399-0139.




