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📍 Town of Babylon, Suffolk County

TOWN OF BABYLON
REMODELING PERMITS

Babylon has the strictest published plumbing rule we found anywhere on Long Island, and it publishes almost nothing else. This page does two things: it quotes the Town Code where the Town Code is clear, and it says plainly where the Town publishes nothing at all. Where a figure is not available, we give you the department instead of a guess.

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The Work Behind The Paperwork

Kitchen and bathroom renovations across Suffolk County — rough-in and waterproofing going in, and the finished room.

Marble shower tile set with leveling clips during a permitted Suffolk County bathroom renovation Shower Tile Going In
Finished tub and shower with frameless glass door and patterned tile floor in a Town of Babylon area bathroom remodel Tub/Shower — Frameless Glass
Kitchen renovation in progress with rough plumbing and framing exposed before inspection Kitchen Rough-In
Finished Long Island kitchen remodel with island and full-height cabinetry Finished Kitchen

Town of Babylon Building Permit for a Kitchen or Bathroom Remodel

Quick Answer

The Town of Babylon requires a building permit to construct, modify or alter a building, and Chapter 170 requires a permit for new, extended or altered plumbing, performed only by a master or restricted master plumber licensed by the Town's Plumbers Examining Board. Babylon publishes no cosmetic-work exemption list and no fee schedule online. Call the Building Department before you file.

Key Takeaways
  • Chapter 170 is the whole story. Covered plumbing work “shall only be performed by a master plumber or, where applicable, a restricted master plumber licensed by the Town of Babylon Plumbers Examining Board,” and conducting a plumbing business in the Town without that licence is unlawful. The chapter contains no homeowner exemption.
  • The repair carve-out decides most kitchen and bathroom jobs. “Repairs to existing plumbing and drainage may be made without filing an application” — unless new pipes or additional fixtures are involved.
  • Fees double if you file after work has started on a residential permit, and triple on a commercial one. That provision has been in force since February 1, 2000.
  • Permits run 180 days, with extensions of 180 days each. The code does not state a limit on how many extensions may be obtained.
  • No cosmetic-versus-permit list and no fee schedule are published. The code says the fee “shall be as may be determined from time to time by the Town Board.” We publish no Babylon fee figure.
  • Amityville, Babylon and Lindenhurst are incorporated villages and permit separately from the Town.

Do You Need a Permit to Remodel a Kitchen or Bathroom in the Town of Babylon?

New York State sets the floor. 19 NYCRR 1203.3(a)(1) requires every authority having jurisdiction to require building permits for work that must conform to the Codes, and it lets a locality exempt a short list of categories — among them “painting, wallpapering, tiling, carpeting, or other similar finish work” and “repairs, provided that the work does not have an impact on fire and life safety.” The State mandates the permit and merely allows the exemption. That is why the answer changes from one town to the next, and why Babylon's answer is not the Town of Islip's.

Babylon's building-permit trigger sits in Town Code Chapter 89, Article III, and it is written broadly: it is “unlawful to own, occupy, lease, let or use a building… that has been constructed, erected, modified or altered unless a permit authorizing the same shall have been issued.” The chapter allows emergency repairs on a building inspector's oral or written permission, then closes that door: “Nothing herein shall be construed to give permission to make permanent repairs, alterations or modifications to any building or structure without a building permit.” Babylon treats altering a building as permit work and keeps the emergency path for emergencies.

The Town of Babylon does not publish a list of cosmetic work that is exempt from a building permit. There is no Babylon equivalent of the Town of Islip's “When Is A Permit Required” sheet, which states in writing that paint, wallpaper, tile, carpet and cabinets need no permit. Islip's sheet is authority for Islip. It is not authority for Babylon, and Babylon's own language is broad rather than itemized. If your job is finishes only and touches no piping and no structure, the determination belongs to the Building Department, and the phone call takes five minutes.

What Does Chapter 170 Actually Require for Plumbing?

Town Code Chapter 170 provides that “it shall not be lawful to install any new plumbing or drainage work in a building or structure or to extend or alter any existing plumbing or drainage work… without first filing with the Division of Building… and obtaining a permit.” So far that reads like a dozen other towns. The next line is the one that matters: all of that work “shall only be performed by a master plumber or, where applicable, a restricted master plumber licensed by the Town of Babylon Plumbers Examining Board.” The chapter adds that “it shall be unlawful for any person to conduct a business of plumbing within the Town of Babylon without a master or restricted master plumber's license… being first procured and kept in effect.”

Chapter 170 contains no homeowner exemption, and the contrast with its neighbours is published and real. The Town of Huntington licenses its own plumbers but carves owners out explicitly, allowing plumbing work “without benefit of a license as long as the work is performed by the owner and not by the owner's contractor or other person.” The Town of North Hempstead lets homeowners do plumbing on an owner-occupied home subject to a competency test. The Town of Smithtown's code requires a plumbing permit and a detailed fixture drawing but imposes no town plumber licence at all. In Babylon the licence is the Town's own, issued through the Town's own examining board, and the code ties performance of the work to it. A bathroom is almost entirely plumbing and a kitchen substantially so, which makes that licence the gating item on your project rather than a detail.

Which Kitchen and Bathroom Scopes Need a Babylon Plumbing Permit?

Chapter 170 does contain a carve-out, and for a kitchen or bathroom that one sentence decides most jobs. “Repairs to existing plumbing and drainage may be made without filing an application” — unless new pipes or additional fixtures are involved. That is the test: not the price of the job, not whether you call it a remodel, not whether a wall moves. New pipe, or another fixture. The table applies that test to the scopes we actually see. It describes the code language; the determination for your address belongs to the department.

Scope New Pipe or Added Fixture? What Chapter 170 Says
KITCHEN — repair a leaking trap or supply stop, no new pipe, no added fixture No Repairs to existing plumbing and drainage may be made without filing an application.
KITCHEN — replace the sink and faucet in the same location on the existing supply and waste Depends on what the opening reveals Treated as a repair while no new pipe and no additional fixture is involved. The moment a run is re-piped, the exemption stops applying. Confirm with the Division of Building.
KITCHEN — move the sink to an island or a different wall Yes — new supply, waste and vent New or extended plumbing work. Application and permit required; work performed by a Babylon-licensed master or restricted master plumber.
KITCHEN — add a dishwasher, a second sink, a pot filler or an ice-maker line where none existed Yes — additional fixture Outside the repair carve-out by its own terms. Application and permit required.
BATHROOM — re-tile the shower, replace the vanity top, paint, swap the mirror No plumbing work involved Chapter 170 is not engaged. The separate building-permit question is not answered by any published Babylon exemption list — ask the department.
BATHROOM — replace the toilet or the vanity in place, no re-piping No Reads as a repair to existing plumbing under the carve-out. Confirm, because the exemption fails if any new pipe goes in.
BATHROOM — move the toilet, convert a tub to a curbless shower, relocate the vanity Yes — new waste, vent and supply New or extended plumbing work. Application and permit required.
BATHROOM — add a second sink, a bidet or a steam unit Yes — additional fixture Outside the repair carve-out. Application and permit required.
BATHROOM — add a new powder room or full bath where none existed Yes — new plumbing and drainage throughout New plumbing work in the plainest sense. Application and permit required, and the building permit is a separate filing.

If you are adding a bathroom rather than rebuilding one, a second authority applies that has nothing to do with the Town: Suffolk County Sanitary Code Article 6, whose expansion trigger is bedrooms rather than bathroom count. See our Long Island bathroom addition page and bathroom remodeling in Suffolk County. Article 6 is amended periodically — confirm current requirements with the Suffolk County Department of Health Services Office of Wastewater Management.

What the Babylon Code Says Versus What the Town Publishes Online

Most permit pages present a town as one tidy set of rules. Babylon is not that, and pretending otherwise would mean filling the gaps with inference. The table below is an inventory: on the left what the adopted code says, on the right what a homeowner can actually retrieve. As of July 2026 the Town's own website blocks automated access, so documents that may well exist could not be reached for this page. Absence here means we could not retrieve it, not that it does not exist.

Question What the Adopted Code Says What Is Publicly Retrievable
Does an alteration need a building permit? Chapter 89 Art. III: unlawful to use a building that has been “constructed, erected, modified or altered” without a permit. The code text. No plain-language remodel guidance retrieved.
Are paint, tile and cabinets exempt? No itemized cosmetic exemption located in the code. Nothing. Babylon publishes no cosmetic-versus-permit list. Islip's published list does not govern Babylon.
Does the plumbing need a permit? Chapter 170: unlawful to install new, or extend or alter existing, plumbing or drainage work without filing and obtaining a permit. The code text, and it is unusually clear.
Who may perform the plumbing? Chapter 170: only a master plumber or, where applicable, a restricted master plumber licensed by the Town of Babylon Plumbers Examining Board. The code text. No roster of currently licensed Babylon plumbers was retrievable — verify with the Town.
What are the permit fees? No amounts in the code: the fee “shall be as may be determined from time to time by the Town Board.” Nothing. Set by Town Board resolution; not retrievable online. Call the department.
What if I file after starting work? Fees “commencing February 1, 2000, shall be doubled for every permit application filed after the work which is the subject of the permit has commenced”; commercial permit fees “shall be tripled.” The code text. The doubled amount is unknowable because the base is unpublished.
How long does a permit last? 180 days from issuance, “unless, within such period, an extension of such permit has been duly obtained.” Extensions run 180 days each, with no stated cap on the number. The code text.
Is a certificate of occupancy required? Yes: no building “erected, enlarged, extended or altered shall be occupied or used in whole or in part” until a certificate of occupancy has been issued. The code text. The close-out document checklist was not retrievable.
Which electrical inspection agencies are accepted? Not identified in the material available for this page. Nothing. We name no agency for Babylon, because we could not confirm one. Ask the department.
What is in the application package? Not retrievable. Nothing. Forms, plan counts, survey requirements and insurance certificate holders all have to come from the department.
How long is review? No published day count. Nothing. No Long Island jurisdiction we checked publishes a turnaround time.

What Does a Babylon Permit Cost, and What Happens If You File Late?

We are not going to publish a Babylon permit fee, and you should be sceptical of anyone who does. The Town Code fixes no amounts. It provides that “the amount of such fee shall be as may be determined from time to time by the Town Board,” so the operative numbers live in Town Board resolutions rather than in the code. As of July 2026 no current Babylon fee schedule was retrievable. The Town of Smithtown puts its residential alteration and plumbing fees straight into its code and the Town of Islip publishes a dated schedule; Babylon does neither, and borrowing Smithtown's numbers would produce a figure with nothing behind it.

What Babylon does publish, in unambiguous language, is the penalty for getting the sequence wrong. Fees “commencing February 1, 2000, shall be doubled for every permit application filed after the work which is the subject of the permit has commenced,” and for commercial permits “the amount of such fee… shall be tripled.” A homeowner who lets demolition start on Monday and files on Friday pays twice the fee — and, because the base schedule is unpublished, cannot work out in advance what that mistake costs. Islip triples for recent unpermitted work and Smithtown charges three times the regular fee plus a per-item surcharge. Babylon doubles residential. The lesson is the same everywhere: file first.

How Long Does a Town of Babylon Permit Last?

180 days. The code provides that “each and every permit issued by the Building Inspector… shall expire and become null and void at the expiration of 180 days from the date of issuance, unless, within such period, an extension of such permit has been duly obtained.” Extensions run 180 days each. The code does not state a cap on how many extensions may be obtained, and we will not imply one where the text does not create one. Nor are extensions automatic or free: the mechanism is an application to the department, and the fee, like every Babylon fee, is set by Town Board resolution.

Six months sounds generous until you sequence a real job. Shower glass is templated after the tile is set, cabinetry and stone carry their own lead times, and one backordered vanity can idle a bathroom for weeks. The permit clock does not pause for a supplier, so we set order dates against the 180-day expiry rather than against the start date. Realistic phase durations are in our bathroom remodel cost guide and kitchen remodel cost guide.

What About the Certificate of Occupancy, Electrical Inspection and Review Time?

The certificate of occupancy is required and the code says so directly: no building “hereafter erected, enlarged, extended or altered shall be occupied or used in whole or in part until a certificate of occupancy… shall have been issued.” What the Town does not publish in retrievable form is the close-out package — which certificates, surveys and sign-offs the department wants before it issues one. Ask when you file, not when you finish.

On electrical inspection we have nothing to give you, and we would rather say so than name an agency. Several Long Island towns identify acceptable electrical inspection agencies in their codes, and the Town of Oyster Bay publishes a current named roster. For Babylon we could not confirm which agencies the department accepts, so this page names none. Ask the Building Department which certificate they will accept before your electrician schedules a rough inspection.

Review turnaround is the same answer, and it is the same answer everywhere. No Long Island jurisdiction we checked publishes a permit turnaround time — not Babylon, not Islip, not Smithtown, not Huntington, not Brookhaven. A contractor who tells you a Babylon permit takes a specific number of weeks is quoting a number no town has published. Call the department, ask what they are running, and hold float in the schedule.

How Do You File in Babylon, and Where Is the Building Department?

As of July 2026 the Town has moved to an OpenGov online permit centre. Confirm current filing requirements with the department before you assemble a package, because the transition affects what is accepted at a counter, what must be uploaded and how fees are paid. We publish no compliance date for it; the official announcement was not retrievable.

The Building Department is as listed at Town Hall West Wing, 200 East Sunrise Highway, Lindenhurst, NY 11757, with a listed phone of (631) 957-3058 and listed hours of 9:00 a.m. to 4:30 p.m. Those details come from a secondary directory rather than the Town's own site, which blocks automated access. Confirm the address, the phone number and the hours before you rely on them. We would rather hand you a number to verify than pretend to a certainty we do not have.

Which Villages Inside Babylon Permit Their Own Work?

The Town of Babylon Division of Building serves the Town's unincorporated areas — Copiague, Deer Park, North Babylon, West Babylon and Wyandanch among them. Three incorporated villages sit inside the Town's borders: the Village of Amityville, the Village of Babylon and the Village of Lindenhurst. An incorporated village runs its own building permitting, so a village address does not file with the Town, and village fees, forms and trade-licence rules are set separately. Suffolk County has 32 incorporated villages; Nassau has 64, which is why Nassau permitting is the harder problem.

The practical test is your property tax bill. Villages levy their own taxes, so a separate village tax line means you file there. No village line means the Town's unincorporated area. When in doubt, call the Town — if it is not their jurisdiction, they will tell you whose it is.

Can a Babylon Remodel Raise Your Property Taxes?

An improvement can raise an assessment, and New York's Home Improvement Exemption under RPTL §421-f is built to soften that where a locality has opted in. The statute shields up to $80,000 of increased market value on an eight-year declining scale — 100%, 87.5%, 75%, 62.5%, 50%, 37.5%, 25%, then 12.5%. The improvement must exceed $3,000, the greater portion of the improved building by square footage must be at least five years old, and ordinary maintenance does not qualify. Babylon appears as an adopting municipality on the New York State Department of Taxation and Finance table, by local laws recorded there as 93-13 and 01-3. Confirm the local terms and the current filing window with the Town of Babylon Assessor.

Who Actually Does the Work, and How Do You Check a Contractor?

Start with the licence number. Greene Group Construction holds Suffolk County HIC #HI-72958 and Nassau County HIC #EF-65498. Under Suffolk County Code Chapter 563 a home improvement contractor's licence number is legally required to appear in advertising, which makes it a free screening tool: an ad, a truck or a website with no Suffolk number on it is telling you something. Verify the number you are given with the Suffolk County Department of Labor, Licensing and Consumer Affairs. The county HIC is a floor rather than a ceiling — in Babylon it does not substitute for the Town plumbing licence Chapter 170 requires, and we make no claim to hold any town-level trade licence.

Our own carpenters and project managers run your job start to finish. Electrical and plumbing are performed by licensed Nassau and Suffolk trade contractors we've worked with for years — we schedule them, we coordinate the inspections, and we're accountable for the result. Demolition, debris hauling and cleanout are handled by our own crews. A failed shower pan or a supply line behind a vanity does not stop at the tile, so we run water damage restoration and insurance claims support as real service lines and rebuild the finished room under the same contract. For how Babylon sits alongside the other nine Suffolk towns, see kitchen remodeling in Suffolk County.

Town codes, fee resolutions and filing procedures change. Everything on this page is general information drawn from the Town of Babylon's adopted code as available in July 2026, and it is not legal, code or tax advice. Confirm the current requirements with the Town of Babylon Building Department before you rely on any of it for your project.

Town of Babylon Remodeling Permit FAQ

Do I need a permit to remodel a bathroom in Babylon?
If the work touches plumbing beyond a repair, yes. Town of Babylon Town Code Chapter 170 makes it unlawful to install new plumbing or drainage work, or to extend or alter existing plumbing or drainage work, without first filing with the Division of Building and obtaining a permit. Chapter 89 separately requires a building permit for a building that has been constructed, erected, modified or altered. Babylon publishes no list of exempt cosmetic work, so on a finishes-only bathroom the building-permit question is a determination for the Building Department. Call before you order materials.

Do I need a permit for a kitchen remodel in the Town of Babylon?
A kitchen that moves a sink, adds a fixture such as a dishwasher or a pot filler, or runs new supply, waste or vent piping is new or altered plumbing work under Town of Babylon Town Code Chapter 170 and requires a plumbing permit filed with the Division of Building. Chapter 89 governs the building permit for the alteration itself. Babylon publishes no itemized cosmetic-work exemption, so a cabinet-and-countertop refit that touches no piping still has to be confirmed with the Building Department. Another town's published exemption list does not apply in Babylon.

Can a homeowner do their own plumbing in the Town of Babylon?
Town of Babylon Town Code Chapter 170 states that the plumbing work it covers shall only be performed by a master plumber or, where applicable, a restricted master plumber licensed by the Town of Babylon Plumbers Examining Board, and that conducting a plumbing business in the Town without that license is unlawful. The chapter contains no homeowner exemption of the kind the Town of Huntington and the Town of North Hempstead publish. Confirm your own situation with the Division of Building before you plan any owner-performed work.

What does a Town of Babylon building permit cost?
The Town of Babylon does not publish a retrievable fee schedule online. The Town Code fixes no amounts and provides instead that the amount of such fee shall be as may be determined from time to time by the Town Board, so the numbers live in Town Board resolutions. We publish no Babylon permit fee figure, because we do not have a sourced one and a borrowed number from a neighboring town would be wrong. Call the Building Department for the current schedule.

What happens if you start work in Babylon before you get the permit?
The fee doubles on a residential permit. Town of Babylon Town Code provides that fees, commencing February 1, 2000, shall be doubled for every permit application filed after the work which is the subject of the permit has commenced, and that the amount of such fee for commercial permits shall be tripled in the same circumstance. Because Babylon does not publish the underlying schedule, you cannot calculate in advance what doubling will cost you. File first.

How long is a Town of Babylon building permit good for?
180 days. Town of Babylon Town Code provides that each and every permit issued by the Building Inspector shall expire and become null and void at the expiration of 180 days from the date of issuance, unless within such period an extension of such permit has been duly obtained. Extensions run 180 days each. The code does not state a cap on the number of extensions, so do not assume you get only one, and do not assume they are granted automatically. Confirm the procedure with the Division of Building.

How long does the Town of Babylon take to issue a permit?
Babylon does not publish a permit turnaround time, and neither does any other Long Island jurisdiction we checked. A contractor who quotes a guaranteed number of weeks for a Babylon permit is inventing it. Review time moves with the season, the completeness of the application and the department's current queue. Call the Building Department, ask what they are running, and build float into the schedule instead of a promise.

Does the Town of Babylon issue permits for the Villages of Amityville, Babylon and Lindenhurst?
No. Amityville, Babylon and Lindenhurst are incorporated villages with their own governments, and an incorporated village handles its own building permits. The Town of Babylon Division of Building serves the Town's unincorporated areas, which include Copiague, Deer Park, North Babylon, West Babylon and Wyandanch. A Lindenhurst village address files with the Village of Lindenhurst, and village fee schedules and trade-license rules are set separately from the Town's. Check your property tax bill: a separate village tax line means you are inside a village.

Planning a kitchen or bathroom in Babylon? Call (631) 532-7346 and we will walk your scope against Chapter 170, tell you whether your address is Town or village, and file the paperwork before anyone swings a hammer. For the other Long Island jurisdictions we cover, start at our Long Island remodeling permits hub. For the work itself, see kitchen remodeling and bathroom remodeling, or request a free estimate.

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PERMIT IT RIGHT IN THE TOWN OF BABYLON

One contractor for the application, the licensed trades, the inspections and the certificate of occupancy — filed before the work starts, not after.