Town of Lewisboro, New York Building Permit Guide

The Town of Lewisboro Building Department, 892 Route 35, Cross River (914-763-3060), issues building permits and certificates of occupancy or compliance throughout the town, which contains no incorporated village. You can file hard copies or upload the same package to City Squared. Under the fee schedule effective February 24, 2025, a residential job pays $102 in filing and records fees, $10 per $1,000 of estimated cost for the permit and the same again for the certificate, and the permit fee already covers plumbing, heating and mechanical work.

What requires a building permit in Lewisboro?

Section 92-4A requires a permit for any work governed by the Uniform Code or Energy Code, and names retaining walls, swimming pools, boundary walls and fences, signs, poles, radio masts and solid-fuel stoves, chimneys and flues. The single building, mechanical and minor-work application lists what the department sees most often.

With the limit at 64 sq ft, most garden sheds need a permit. Work finished without one is legalized at twice the building permit fee, with a $250 minimum on the application form.

What Lewisboro decides and what the state sets

The Uniform Code and Energy Code set the construction standards. Lewisboro’s Chapter 92 (Local Law 2 of 2006, last amended by Local Law 7 of 2025) sets the permit terms, inspections and fees, and other chapters add local land-use rules: wetlands and watercourses (Chapter 217, rewritten in April 2025), flood damage prevention (Chapter 126), tree preservation (Chapter 203), sewers and septic upkeep (Chapter 183) and zoning (Chapter 220). Any stricter construction standard would need the state Code Council’s approval.

Lewisboro building department: who handles permitting

Lewisboro has no villages, so the town Building Department, under Building Inspector Kevin Kelly, covers every property; the county’s list of local building departments gives its mailing address as P.O. Box 725, Cross River, NY 10518. The same office takes zoning matters, and the Building Inspector refers applications to the Planning Board, the Zoning Board of Appeals or the Architecture and Community Appearance Review Council (ACARC) when a project needs them.

Lewisboro permit types and filing rules

Residential permits

One building, mechanical and minor work application covers everything from a new house to a boiler swap. Bring hard copies or upload each item to City Squared. The package holds the signed application, the nonrefundable permit and certificate fees, one site plan showing setbacks and the location of septic systems and wells, equipment cut sheets (stoves, flues, generators, LP and oil tanks, water heaters, HVAC) and, where an agent files, a letter of authorization from the owner and any management company.

Structural drawings stamped by a New York architect or engineer are required for every deck, every structural change and every project over $20,000. Round the estimated cost up to the next $1,000; under Section 92-19 it must include mechanical, plumbing, heating, air conditioning and electrical work, and if the final cost runs higher, more fee can be charged before the certificate issues.

Since October 1, 2024 every application must also include the receipt from the most recent septic tank pump-out or service visit. Chapter 183 requires owners in the watershed who rely on septic to have the tank pumped and inspected by a county-licensed septage collector at least once every five years and to keep the report for six years, and no certificate is issued until compliance is shown.

Building or remodeling a home here? Alliance handles residential permit filing, so the crew isn't waiting on the counter.

Commercial permits

Commercial projects use the same form at $15 per $1,000 for both the permit and the certificate. Commercial kitchen hoods, fire alarms and sprinkler systems are listed on the form, tents need a temporary permit ($102 plus $20 per $1,000) and places that need a fire code operating permit pay $150. A pre-dated commercial certificate under zoning Section 220-76C costs $360.

For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.

What comes before the building permit

• Wetlands: Chapter 217 protects a 150-foot buffer around wetlands and watercourses; the Planning Board or the Town Wetland Inspector decides permits, depending on the work.
• Zoning: setbacks follow the district (table below); front setbacks are measured both from the street center line and from the front property line.
• Environmental questionnaire: $50 when the department asks for one.
• Septic and wells: new or replacement systems are designed to the county’s 2022 rules and permitted by the Westchester County Health Department.
• Blasting: a $500 permit and proof of at least $1,000,000 of liability insurance naming the town.

On lots in the R-1/2A district or smaller, an accessory building no taller than 12 feet may sit 5 feet from any line in the rear yard; anything that misses a setback goes to the Zoning Board of Appeals before a permit can issue.

Lewisboro building permit fees

Section 92-16 leaves fees to the Town Board. The Building and Zoning Department fee schedule has been in effect since February 24, 2025, and the application form splits the $102 into a $100 filing fee and a $2 records management fee.

Worked example: a $50,000 addition to a house costs $102 in filing and records fees, $500 for the permit (50 × $10) and $500 for the certificate, or $1,102, with plumbing and heating work inside that figure.

Trade permits and who may pull them

Electrical, plumbing and mechanical. Trade work goes on the same building, mechanical and minor-work application: the building permit fee includes plumbing, heating and mechanical work, and electrical work is a box on the form. The plumber and electrician must each be licensed by Westchester County and supply a copy of the county photo license, because the department will not look licenses up for you.

Electrical inspection. The town’s electrical agencies page sends owners to Statewide Inspection Services, Better Homes Electrical Inspection Services, New York Electrical Inspection Services or Tri-State Inspection Agency. Westchester County requires electrical inspectors to hold a county license unless they work for a government, and posts its own list of qualifying agencies.

Contractors. A general contractor needs a Westchester County home improvement license, a copy goes with every application, a pending license needs written proof from the county, and names and addresses on licenses and insurance must match. The county Department of Consumer Protection (148 Martine Avenue, Room 407, White Plains; 914-995-2211 for home improvement licensing) has charged a $750 application fee since January 1, 2026.

Insurance. Workers’ compensation (C-105.2 or U-26.3), disability (DB-120.1 or DB-155) and liability certificates must name the Town of Lewisboro, 892 Route 35, as certificate holder; ACORD forms are refused. If there is no general contractor, or the contractor files a CE-200 exemption, every mechanical trade must file its own certificates.

How to apply for a Lewisboro building permit

Review, corrections and what causes delay

Missing county license copies, ACORD insurance forms and a missing pump-out receipt are the items the form stresses. A change to approved plans costs $500 for review. Under Section 92-4I a permit becomes invalid if work has not begun within three months and expires 36 months after issue, with 12-month renewals available; the code governs, and the 18 months still printed on the application’s signature page is only a noted difference. Work under a permit is limited to 7 am to 7 pm, Monday to Saturday, with no Sunday work except in an emergency.

Lewisboro inspections and certificates

The permit holder must call the Building Department at 914-763-3060 for every required inspection; none are scheduled until the permit has been issued and posted. Section 92-5 lists the stages: the site before the permit, footings and foundation, slab preparation, framing, building systems including underground and rough-in work, fire-resistant construction and penetrations, solid-fuel appliances and chimneys, energy code items and a final. A failed or missed inspection costs $100.

When the work passes, the department issues a certificate of occupancy or compliance, paid for when you applied. It will not issue one without the septic pump-out record and, under Section 92-7, any required special-inspection report and flood hazard certification. Occupying a building before the certificate costs $100 a day.

New York building code

New York builds on one statewide code, the Uniform Code, outside New York City; the 2025 edition and 2025 Energy Code took effect on 31 December 2025 (the all-electric provisions remain suspended by court order). Cities, towns and villages administer it, and local standards stricter than the code need Code Council approval. The Uniform Code in New York

Lewisboro permit FAQ

Does any part of Lewisboro have its own village building department?

No. Lewisboro contains no incorporated village, so the town Building Department in Cross River permits every property in the town.

Do I need a permit for a garden shed?

Yes, unless it is a one-story shed or playhouse of 64 sq ft or less at a one- or two-family home. Fences and retaining walls also need permits.

Why does the town want my septic pump-out receipt?

Since October 1, 2024 every building application must include it. Chapter 183 requires septic tanks in the watershed to be pumped and inspected at least every five years, and no certificate issues without proof.

How much is a permit for a $50,000 addition?

$1,102 for a house: $102 in filing fees, $500 for the permit and $500 for the certificate.

How do I get a plumbing permit?

Plumbing goes on the building, mechanical and minor-work application, and the building permit fee already includes plumbing, heating and mechanical work. The plumber must hold a Westchester County license and supply a copy.

How long is a Lewisboro permit good for?

Work must start within three months; the permit then runs 36 months from issue under the Town Code and can be renewed in 12-month steps.

Is Lewisboro in the federal flood insurance program?

Yes. FEMA lists the Town of Lewisboro as participating, on a map effective September 28, 2007 that shows flood zones without base flood elevations.

Permit search and official resources

Copies of permits and certificates come from the Building Department’s file search service for $20 per search, and parcel maps are on the town’s tax parcel viewer.

• Lewisboro Building Department
• Building permit application and instructions
• Building and Zoning fee schedule, effective February 24, 2025
• Electrical inspection agencies for Lewisboro
• Zoning area and setback requirements
• Town Code Chapter 92, Building Code Administration
• Town Code Chapter 183, Sewers and septic inspections
• Town Code Chapter 217, Wetlands and Watercourses
• Westchester County plumber and electrician licenses
• Westchester County home improvement license fees
• Westchester County Health septic and well permits
• FEMA Community Status Book, New York
• NYS code adoption notice

Simplify Town of Lewisboro permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in New York. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Town of Lewisboro permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.