County building permit guide
Westchester County, New York building permits — complete guide (2026)
Westchester is one of the wealthiest counties in the US, directly north of NYC. There is no county building department — 40+ municipalities each issue their own permits. High property values drive extensive renovation activity. Many communities have historic districts and strict architectural review.
Avg cost: $175–$1
200
Processing: 3–8 weeks
~14K permits/yr
~1.0M residents
$175–$1,200Avg permit cost
3–8 weeksProcessing time
14,000Permits/year
PartialADU-friendly
Ready to apply for your Westchester County, New York permit?
No county building department. Over 40 municipalities issue permits independently. Some villages are very small — call first.
Find your building dept ↗
Westchester County, New York Building Department
Varies by municipality
Municipal building departments (no county dept)
Varies by municipality
Varies (typically Mon–Fri 9am–4:30pm ET)
Varies by municipality
Municipal portals
No county building department. Permits are handled by your city, town, or village. Requirements and fees vary significantly between Westchester's 40+ municipalities.
Permit fees — Westchester County, New York, 2026
| Permit type | Fee range | Processing | Notes |
|---|---|---|---|
| New Construction | $800–$3,500 | 6–12 weeks | Planning board + zoning board often required |
| Room Addition | $400–$2,000 | 4–8 weeks | Architectural review in many municipalities |
| Roofing | $150–$500 | 1–3 weeks | Historic district properties need review board sign-off |
| Pool | $400–$1,500 | 4–8 weeks | Barrier fence + electrical + health dept |
| Bathroom Remodel | $200–$900 | 2–5 weeks | If moving plumbing — separate plumbing permit |
| Electrical | $100–$400 | 1–3 weeks | Licensed master electrician required |
| HVAC | $100–$350 | 1–2 weeks | Standard replacement |
| Deck | $200–$800 | 2–5 weeks | Setbacks and coverage limits vary by municipality |
| Fence | $100–$300 | 1–2 weeks | Height limits and materials vary |
| Solar | $150–$500 | 2–4 weeks | Historic districts have additional review |
How to get a permit in Westchester County, New York
1
Identify your municipality
Westchester has 6 cities, 19 towns, and 23 villages — each with their own building department. Find yours first.
2
Historic district check
Many Westchester communities have historic districts. Exterior changes require architectural review board approval before the building department will accept an application.
3
Zoning review
Confirm setbacks, lot coverage, FAR, and use requirements. Non-conforming projects need zoning board of appeals approval.
4
Submit application
Most municipalities have online portals, but some smaller villages are still paper-based. Fees are based on project valuation.
5
Plan review
Simple permits reviewed in 1–2 weeks. Additions and new construction typically 4–8 weeks. Historic review adds time.
6
Inspections
Standard sequence: foundation, framing, rough-in trades, final. Some municipalities require additional architectural inspections.
Jurisdictions within Westchester County, New York
Special zone requirements
Historic Districts
Multiple municipalities
Architectural review required for exterior changes. Adds 2–8 weeks to most projects.
Hudson River
Western Westchester
NYS DEC permits may be needed for waterfront construction. Flood zones along the riverfront.
Steep Slopes
Northern Westchester
Some municipalities restrict construction on slopes exceeding 15–25%. Grading permits required.
Frequently asked questions — Westchester County, New York
Does Westchester County issue building permits?
No. Over 40 municipalities in Westchester each issue their own building permits. There is no county building department.
Why are permit costs higher in Westchester?
High property values drive extensive renovation scopes. Municipal review is thorough. Architectural review boards add time and cost. Licensed professionals are typically required for plan filing.
What are historic district rules?
Exterior changes to buildings in designated historic districts require approval from the local architectural review board before the building department will accept a permit application. This adds 2–8 weeks.
Can homeowners pull their own permits?
Yes for most work. Licensed electricians and plumbers are required for trade work. Homeowners can pull the overall building permit for their primary residence in most municipalities.
US Census Bureau BPS 2024 · Westchester municipal building departments