Quick answer: building permit fees in Westchester are set by each town and village, usually as a fee per $1,000 of construction cost plus an application fee. On a $25,000 renovation, the schedules below come to roughly $375 to $750 in permit, application and certificate fees, and building before you get the permit doubles or triples that.
Pick your municipality and enter the project cost. The calculator uses each town's published fee schedule (sources at the bottom).
Not included: separate electrical, plumbing and mechanical permits; Planning, Zoning or Architectural Review Board fees; surveys and architect or engineer drawings. Towns change fees by board resolution, so confirm the total with the building department when you apply.
How each town calculates it
| Municipality | Building permit | Application | Built before permit |
|---|---|---|---|
| Town of Yorktown Master fee schedule, Mar 4, 2025 | $175 for the first $2,000 · $13.50 per $1,000 to $15,000 · $10 per $1,000 to $50,000 · $9 per $1,000 above | $75 (work up to $2,000) / $125 | Fee doubled |
| Town of Cortlandt Master fee list, Feb 10, 2026 | $150 up to $10,000 · plus $10 per $1,000 above $10,000 | $200 (residential) | All fees doubled |
| Village of Ossining 2026 fee schedule | $12 per $1,000 up to $200,000 (min $25) · $10 per $1,000 above | none listed for a standard permit | Tripled, or $1,000, whichever is greater |
| Village of Tarrytown Revised Feb 7, 2024 | $20 per $1,000 (renovations) | $100 | Legalization fee equal to double the permit fee |
The calculator rounds each partial $1,000 up to the next $1,000, the way most schedules apply "per $1,000".
Special cases
- Sheds in Yorktown: a flat $150 (includes the permit and certificate of occupancy) for sheds up to 200 sq ft, plus a $50 shed application fee. See shed permits in Westchester. Many towns don't require a permit at all for sheds of 144 sq ft or less.
- Gazebos and accessory structures in Yorktown: $225 up to 150 sq ft, $1.75 per sq ft above. See gazebo permits in Yorktown.
- Certificates: Cortlandt's residential certificate of completion is $50. The Village of Ossining's CO runs $75 to $225 depending on job value. Tarrytown's residential CO is $150.
- Selling soon? After-the-fact fees add up fast. See open permits when selling.
Your town isn't listed?
Most Westchester municipalities use the same structure: an application fee plus a fee per $1,000 of construction cost, with a penalty multiple for work started without a permit. Call your building department and ask for the current fee schedule, or ask us. We pull permits across Westchester and can tell you what to expect for your project.
Want an all-in number: construction, permit fees and timeline, for your project?
📅 Free estimateRelated: Shed permits in Westchester · Gazebo permits in Yorktown · Open permits when selling · How to hire a contractor
Sources
Fees and rules below come from each municipality's published documents, checked October 2026. Towns change fees by board resolution, so confirm with the building department before you apply. This guide is general information, not legal advice.
- Town of Yorktown Master Fee Schedule (adopted March 4, 2025)
- Town of Cortlandt Master Fee List, Resolution 68-26 (February 10, 2026)
- Village of Ossining 2026 Fee Schedule
- Village of Tarrytown building fees (revised February 7, 2024)
Frequently Asked Questions
It depends on the municipality. Most charge an application fee plus a fee per $1,000 of construction cost. On a $25,000 residential renovation, the published schedules for Yorktown, Cortlandt, the Village of Ossining and Tarrytown work out to roughly $375 to $750 including application and certificate fees where they apply.
Usually as a dollar amount per $1,000 of estimated construction cost, often with a minimum fee and a separate application fee. For example, Cortlandt charges $150 up to $10,000 plus $10 per $1,000 above that, and the Village of Ossining charges $12 per $1,000 up to $200,000.
You pay more. Yorktown doubles the permit fee, Cortlandt doubles all fees, the Village of Ossining triples the fee or charges $1,000, whichever is greater, and Tarrytown adds a legalization fee equal to double the permit fee.
Usually yes. Electrical, plumbing and mechanical work generally need their own permits and inspections, and those fees are not included in this calculator.