Long Island Roofing Permits

Last reviewed October 31, 2026.

Two neighbors on the same Long Island street can ask about a roof permit, get two different answers, and both be right. One house sits in the unincorporated town. The other sits just inside a village line. Each building department writes its own exemptions, and most of them never mention roofing by name.

We read the permit rules for 14 towns and cities and put the same question to each one: what does the department put in writing about replacing the roof covering on a house?

Fourteen building departments, side by side

Every written answer in that table traces back to a document.

Babylon’s Building Department page lists “Roof replacement (removal of plywood)” among projects needing a permit. Huntington’s filing guidelines, revised September 2021, exempt roofing replaced in kind with no structural changes. Islip’s permit list, revised June 16, 2025, exempts roof covering unless structural elements change.

Riverhead’s building law, as adopted on February 22, 2012, puts reroofing on the exempt list and roof deck replacement on the permit list.

Shelter Island’s Section 43-6 waives the permit for nonstructural work at a total cost not exceeding $10,000. We read that sentence in a draft amendment to Chapter 43 printed on the Town Board’s August 10, 2026 agenda, and the draft keeps it.

The Southampton Town FAQ says replacing roofing material “generally does not require a permit,” though village businesses and buildings in close proximity may need one so fire codes get checked.

Long Beach goes the other way. Section 7-34 of the city code says ordinary repairs do not include installing roofing.

“Not stated” means we found no town document that answers it. Those codes require a permit for alterations, and several exempt ordinary repairs that are not structural. None says which side of that line a reroof lands on. Southold’s code host blocked us, so we have not read its exemption list.

Oyster Bay leaves a loose thread. A 2016 version of its Chapter 93 let repairs skip a permit when no structural alteration was made, and we could not find that sentence in the current text.

Rules that cross every town line

The state draws the outer line. Section 1203.3 of the Department of State’s code enforcement rules requires every program to demand permits for work that must meet the Uniform Code or the Energy Code. The few exemptions a local program may offer include repairs that have no impact on fire and life safety, such as any part of the structural system. So no local exemption can cover a repair that touches the rafters or other structural parts of a roof.

The 2025 Residential Code of New York State took effect December 31, 2025, according to the Department of State. Three of its sections speak straight to roofs.

Section R908.3 defines replacement as stripping the old layers down to the deck. Section R908.4 rules out a recover when the existing roof already has two or more layers, is water-soaked or deteriorated, or is slate, clay, cement or asbestos-cement tile. Section R905.1.2 calls for an ice barrier at the eaves, reaching at least 24 inches inside the exterior wall line, in places where the local jurisdiction requires one.

The contractor license follows the county. Suffolk County’s home improvement law names roofing as covered work. In Nassau, North Hempstead wants a copy of a current Nassau County home improvement license from contractors before it issues each permit, and Oyster Bay’s insurance sheet asks for the same on residential construction.

Two places stack a local license on top: Long Beach says only a city-licensed contractor or the homeowner can obtain a permit, and the Shelter Island FAQ says home improvements need a contractor with a Shelter Island license.

Why a village line changes the answer

Under Section 1203.2 of the same state rules, each city, village and town that enforces the code sets up its own program by local law, ordinance or other regulation. So an incorporated village writes its own exemptions and staffs its own desk.

Nassau County lists 22 villages under Hempstead and 15 under Oyster Bay, and North Hempstead lists 30 of its own.

In Suffolk, Huntington’s 311 knowledge base says Asharoken, Huntington Bay, Lloyd Harbor and Northport handle permits through village officials. Smithtown’s Building Department does not accept applications for the Village of the Branch, Nissequogue or Head of the Harbor, which have their own. Southold’s town page and the county list both name Greenport as its one incorporated village. Suffolk County lists no villages at all inside Riverhead, so the town handles every address there.

Your mailing address will not settle it. Find out whether the lot sits inside an incorporated village before you call anyone.

Twelve village building departments we have read

We have gone through the permit paperwork of twelve villages so far. Two give a straight answer on a reroof, and both turn on whether the boards under the shingles get replaced.

The two plain answers come from Freeport and Floral Park. Freeport’s Building Department FAQ lets a shingles-only job go ahead with no permit and calls for one as soon as any plywood comes out, though that FAQ page still shows 2014 dates elsewhere, so treat it as a reason to call rather than the last word.

Floral Park’s permit sheet, revised May 16, 2024, lists a house roof replacement that involves new sheathing as permit work, and the village’s fee list effective June 1, 2026 prices a residential roof permit at a flat $150.

Rockville Centre casts the widest net in writing. Its residential instruction package wants a permit for any addition, alteration or repair to residential property, while its code only spares ordinary repairs that are not structural.

Garden City’s Section 68-1 and Amityville’s Section 49-4 both reach the alteration of an existing building without saying whether new shingles count as one. Lynbrook’s Building Department page names decks, dormers, extensions and skylights, and Port Jefferson’s Building and Planning page names new homes, additions and alterations; neither one mentions a roof.

Mineola checks roofs without saying when they need checking. Its permit packet includes an inspection acknowledgement that lists the exterior roof beside framing and wall sheathing as a stage to be checked, so a roof under permit gets looked at, yet no village page says which roof jobs need that permit.

In Sag Harbor the historic board can matter more than the permit desk. Section 300-13.4 of the village code calls for a certificate of appropriateness before any exterior alteration on a landmark or inside the historic district, and the board’s consent agenda policy allows a roofing application to be approved without a public hearing.

For Massapequa Park, Northport and Westhampton Beach we could not read the permit sections of the village codes, so those guides give the department’s phone number in place of a written rule.

Town lines blur in two spots. Nassau County files both Mineola and Floral Park under Hempstead, while North Hempstead counts both among its incorporated villages. Suffolk County files Sag Harbor under East Hampton, and Chapter 115 of the village code sets separate contractor license rules for the parts of the village lying in each town. Every one of these village halls issues permits for houses inside its own borders, whatever the town.

Three more villages have their own roofer pages with permit notes. Valley Stream, a Town of Hempstead village on Nassau County’s list, lists residential permit fees on its Building Department fees page at $50 for the first $1,000 of construction and another $6 for each $1,000 after that.

In Patchogue, inside Brookhaven, Section 238-43 of the village code bars plywood, OSB or plastic as permanent finished roofing except in an emergency, and then for no more than 90 days.

Lindenhurst, a village in the Town of Babylon, sends homeowners to its own Building Department for building permits, according to the village’s Building Permits page.

What to ask the building department before the crew shows up

• Is the address under the town or a village?
• Does a full tear-off with new shingles on the existing deck need a permit here?
• How many sheets of replacement sheathing turn the job into a permit job?
• Does a change of material, say shingles to metal, matter?
• Does the department require an ice barrier at the eaves?
• Is the house a landmark or in a historic district? Southampton’s Landmarks and Historic Districts Board, for one, reviews demolition and construction permit applications for structures built before 1941.
• If the roof was damaged in a storm, is there a separate filing? Islip requires a repair damage permit for in-kind storm, fire or vehicle repairs, and Hempstead has a filing type for minor storm, flood or wind damage.

Starting without a required permit gets expensive fast. Hempstead’s 2024 fee sheet sets the fee to maintain work already built at twice the fee for proposed work.

North Hempstead’s filing instructions, Long Beach’s Section 7-20 and Southold’s fee schedule also charge double for work done without a permit. Huntington’s fee page charges three times the normal fee.

Get the answer from a named person, write down the date, and keep it with the contract.