Town of Babylon, New York Building Permit Guide

The Building Department, a Division of the Department of Planning & Development, issues permits in the Town of Babylon and enforces the Town’s zoning, local laws, ordinances and building codes. It works from Babylon Town Hall – West Wing, 200 East Sunrise Highway, Lindenhurst, NY 11757. The Town’s ten hamlets have no government of their own and fall under the Town for building codes.

This guide covers the Babylon Building Department, its fees and the Town offices for plumbing, fire systems, zoning and street work. The Town site publishes no inspection-request method, so ask the Building Department how to book building inspections.

What requires a building permit in the Town of Babylon?

The Building Department sets out the rules for common small projects:

• Sheds: a shed not exceeding 100 square feet and 10 feet in height needs no building permit as long as the zone’s setbacks are met, with a maximum of two sheds per lot. Larger sheds need a permit.
• Decks: decks higher than 18 inches need a building permit.
• Pools: every swimming pool, in-ground or above, needs a building permit.
• Solar: solar energy construction takes a permit at a flat fee.

To legalize an existing structure, submit a notarized application signed by the owner, three full-sized signed and sealed original surveys showing all current improvements, two sets of floor plans drawn to 1/4 inch = 1 foot scale, and photographs of the structure.

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

Who handles permitting in the Town of Babylon?

Permit expediters working in Babylon must register with the Town Clerk’s Office under Chapter 118 of the Town Code, using the Expeditor Registration Form.

Other Town of Babylon offices on the way to a permit

Fire Marshal’s Office

The Fire Marshal’s Office, Town Hall Annex – Room 303, 281 Phelps Lane, North Babylon, (631) 893-2153, reviews fire suppression and detection system plans within ten days. Hood and duct systems need both its permit and a building permit.

Zoning Board of Appeals and Planning Board

The Zoning Board of Appeals holds public hearings on variance applications. The Planning Board approves subdivision maps and reviews site plans for business and industrially zoned properties. Both meet in the Town Board Room at Babylon Town Hall.

Curb cuts, sidewalks and curbs

A new curb cut needs a street opening application from the Department of Public Works, submitted by a licensed and insured contractor. New sidewalks or curbs need a permit from the Highway Engineering Division. Department of Public Works: 1023 N. Indiana Avenue, Lindenhurst, (631) 957-8696.

Town of Babylon permit costs and fees

Building permit fees are set by the Town Board. Amounts the Town publishes:

• Solar energy construction: a flat fee of $100.
• Legalizing an existing structure: a non-refundable $25.00 application fee (credited to the permit fee), a building permit fee based on construction cost, and a $20.00 Certificate of Occupancy fee for each certificate.
• Demolition: a $25.00 application fee, a $200.00 certified check or money order returned after the demolition is completed, and a $20.00 letter of compliance fee. Letters of compliance from Suffolk County Water Authority, LIPA, Suffolk County Sewer District and gas utilities are required.

Under the Town Code the fee is doubled when the application is filed after the work has started, and tripled for commercial permits filed after the work has started. The Online Permit Center takes payment by credit card.

Plumbing permits and licences in the Town of Babylon

Plumbing and gas work may only be performed by a master plumber or restricted master plumber licensed by the Town of Babylon Plumbers Examining Board, with a permit from the Division of Building. A plumbing permit expires six months after issuance unless a six-month extension is granted; the extension fee is one-half of the original permit fee. The plumbing fee doubles on residential property, and triples on commercial or industrial property, when work started before the permit.

Where a municipality issues separate trade permits, the work is done under whatever electrical or plumbing licence that city, town or county requires; many places license neither trade. Trade licences in New York

How to get a building permit in the Town of Babylon

Every permit carries an expiration date set by the Town of Babylon, which may void a permit if work does not start in time; confirm the expiry on phased or delayed work. Permit validity in New York

Inspections in the Town of Babylon

The Plumbing Inspector must inspect and approve rough plumbing before it is enclosed, and issues a certificate of approval after the final inspection. The Town site does not publish how to request building inspections; ask the Building Department at (631) 957-3058 or BuildingInfo@TownofBabylonNY.Gov.

Official Town of Babylon permitting resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Town of Babylon Building Department
• Babylon Online Permit Center notice
• Babylon Department of Planning & Development
• Babylon Town Code: building permit fees and expiry
• Babylon Town Code: plumbing
• Babylon Fire Marshal’s Office
• Babylon Department of Public Works FAQs

Frequently asked questions

Does a shed need a permit in the Town of Babylon?

Not if it does not exceed 100 square feet and 10 feet in height and meets the zone’s setbacks; a lot can have at most two sheds. Larger sheds need a building permit.

Can I still file a Babylon permit application on paper?

No. Since February 2, 2026 all Building Department applications and supporting materials must be submitted online through the Town’s Online Permit Center.

How long is a Babylon building permit good for?

It expires 180 days after issuance unless an extension is obtained from the Building Inspector.

Simplify Town of Babylon permitting with Alliance Permitting

• Confirm the Town office for the parcel and the zoning, highway or fire approvals that go with the permit
• Prepare the application, surveys and plans and file them through the Town’s portal or counter
• Schedule the Town’s inspections and follow the permit through to the certificate of occupancy

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 Babylon permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.