Permit fees in Westchester vary significantly by town and project type — and none of the municipal websites make it easy to find. This calculator consolidates real fee data from Ossining, Peekskill, White Plains, Scarsdale, Yorktown, Tarrytown, and every other Westchester municipality we work in regularly.
What Will Your Permit Cost?
Select your town and project type — see estimated fees, timeline, and required documents.
Note: Always verify current fees with your local building department before submitting. WHI handles this process for all clients.
Why Permits Matter — and Why Many Homeowners Skip Them
The most common thing we hear when clients ask about permits is: "Can't we just skip it?" Here's why that's a bad idea in Westchester specifically:
- Open permits surface at closing — Westchester title companies routinely flag unpermitted work, and sellers must resolve it before closing or accept a reduced price
- Insurance claims can be denied — if a deck collapses or a kitchen fire occurs in an unpermitted space, homeowner insurance can and does refuse to pay
- Resale impact — buyers and their agents in Westchester's sophisticated market ask for permit history on every major renovation
- Fines — Westchester municipalities do issue stop-work orders and fines for unpermitted construction discovered during neighboring projects or re-assessments
Permit Fees by Town — Reference Table
| Municipality | Deck Permit | Gazebo Permit | Bathroom/Kitchen | Avg. Timeline |
|---|---|---|---|---|
| Ossining Village | $300–$500 | $450–$750 | $200–$400 | 2–3 weeks |
| Peekskill City | $280–$480 | $400–$700 | $180–$350 | 2–3 weeks |
| Yorktown Town | $350–$600 | $500–$900 | $200–$450 | 3–5 weeks |
| White Plains City | $450–$750 | $600–$1,000 | $300–$600 | 3–5 weeks |
| Scarsdale Village | $500–$850 | $700–$1,100 | $350–$650 | 4–6 weeks |
| Tarrytown Village | $350–$600 | $500–$850 | $250–$500 | 2–4 weeks |
| Greenburgh Town | $350–$600 | $500–$850 | $200–$450 | 3–5 weeks |
| Yonkers City | $380–$650 | $550–$900 | $250–$500 | 3–6 weeks |
| Cortlandt Town | $320–$550 | $450–$800 | $200–$400 | 2–4 weeks |
WHI clients pay zero permit stress: We manage the full permit process — site plans, engineer stamps if required, submission, and inspection scheduling — as part of every project. Clients never have to call the building department.
Frequently Asked Questions
A residential deck permit in Ossining Village typically costs $300–$500 in 2026, depending on the deck's square footage and valuation. Permits are required for all decks and include at least two inspections (footings and final). WHI handles submission for all deck projects.
Yes — all permanent structures in Yorktown require a building permit. Fees typically run $500–$900 and engineer drawings are required for any gazebo with a roof structure. WHI works regularly with the Yorktown building department and manages the full process including engineering stamps.
Most residential permits take 2–5 weeks to be approved after submission. Peekskill and Cortlandt tend to be faster (2–3 weeks); Scarsdale and White Plains tend to be slower (4–6 weeks). Projects requiring zoning board approval can take 2–4 months.
Engineer stamps are most commonly required for: elevated decks (over 4 feet off ground), large gazebos with structural roofs, any project touching load-bearing walls, home additions, and projects in flood zones. Engineer fees typically run $600–$1,800 depending on complexity. WHI coordinates engineering through our licensed partners.