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Town Line Road

Town Line Road's center line is the boundary between Wainscott in East Hampton Town and the Village of Sagaponack in Southampton Town, from Montauk Highway to the beach.

Town Line Road is a boundary drawn down the middle of a road. In the words of The East Hampton Star, the double-yellow stripes running its length "make up the official dividing line between the hamlet of Wainscott and the Village of Sagaponack, in East Hampton and Southampton Towns respectively."

That makes it the one lane on this list where two towns, and an incorporated village, govern opposite sides of the same street. A house on the east side is in Wainscott and answers to the Town of East Hampton. A house across the road is in Sagaponack, an incorporated village in the Town of Southampton, with its own zoning, building department and village board. Taxing jurisdictions and beach permit systems follow the same split.

Two rulebooks on one road

The practical consequences are larger than they look. Zoning districts, allowable floor area and the permit process are set by different codes on each side. A comparable sale across the road may have been built under a different code. A buyer should start with the parcel's tax map district, not its mailing address; addresses on the road carry a mix of Sagaponack, Wainscott, East Hampton and Sag Harbor names.

The two governments also share the road's problems. After a 2022 fatal accident involving a construction vehicle south of Montauk Highway, East Hampton considered stop signs where Town Line Road meets Wainscott Main Street, Daniel's Lane, Hedges Lane and Parsonage Lane. Sagaponack proposed a sidewalk on its side, a turnaround at the beach end for emergency vehicles, and the removal of landscaping and anti-parking devices encroaching on village-owned strips along the road. A buyer on the Sagaponack side should confirm where the private lot ends and the village strip begins.

The beach end

The road ends at the ocean. At the time of the 2022 reporting, holders of East Hampton Town beach passes could park along the Sagaponack side of the road almost to Wainscott Main Street, and Sagaponack had asked East Hampton to consider restricting that parking. Current beach operation, parking and any drive-on rules at this road end should be confirmed with both municipalities before anything is said to a buyer.

New York State administers the Coastal Erosion Hazard Area along the ocean on both sides. The Town of East Hampton's coastal program records that groins on the East Hampton Village beach have affected beaches to the west, which includes this stretch.

Questions to settle before contract

  • Which side of the center line is the parcel on, and which village or town issues its permits?
  • Does the survey show any encroachment onto a village-owned or town-owned strip along the road?
  • Which zoning code applies, and what floor area and coverage remain under it?
  • Are the comparable sales drawn from the same municipality?
  • What beach parking or access does the owner actually hold?
  • For oceanfront parcels: dune position, the erosion hazard line and lawful structures.

Nearby

Beach Lane is Wainscott's other road to the ocean. The Sagaponack guide covers the village on the west side, and the Wainscott guide covers the hamlet on the east.

Considering Town Line Road?

Request a private pricing review for a specific Town Line Road property from The Roebling Research Desk, organized around municipality, zoning, encroachments, beach access and the comparables from the correct side of the road.

Recorded sales

Recorded sales through July 2026

29 recorded arm’s-length sales of 25 distinct properties since October 2016 (26 house, 3 land).

Houses sold 2023–2025: 7 single-parcel sales, from $4.15M to $26.4M. Too few for a median; the sales are listed below.

Historical transaction median, Jan 31, 2017 to Dec 11, 2025: $4,381,000 (26 single-parcel house sales). A decade-wide figure, not a current value.

Sale dateAddressTypeRecorded priceBeds (roll)Built (roll)Flood zone
Dec 11, 20252 Town Line RoadHouse$10,000,00022009VE
Oct 9, 2025802 Town Line RoadHouse$26,350,000112019X
Jul 11, 20251258 Town Line RoadHouse$5,800,00062021X
Jun 17, 2025328 Town Line RoadHouse$4,500,00031992X
Oct 29, 20247 Town Line RoadHouse$4,150,000——X
May 3, 2024172 Town Line RoadHouse$4,312,00041991X
Feb 12, 2024342 Town Line RoadHouse$20,500,00092024X
May 13, 20227 Town Line RoadHouse$4,100,000——X
Feb 15, 2022219 Town Line RoadHouse$1,731,645——X
Dec 10, 2021342 Town Line RoadLand · house on the 2025 roll†$6,900,00092024—
Apr 16, 202145 Town Line RoadHouse$10,900,000——X
Feb 11, 20212 Town Line RoadHouse$7,230,00022009VE
Dec 30, 2020108 Town Line RoadHouse$7,725,00052020X
Dec 22, 202047 Town Line RoadLand · house on the 2025 roll†$6,332,000——X
Dec 15, 202055 Town Line RoadHouse$21,670,000——X
Nov 18, 20201264 Town Line RoadHouse$4,000,00072021X
Oct 30, 2020321 Town Line RoadHouse$2,507,500——X
Oct 15, 2020379 Town Line RoadHouse$2,650,000——X
Aug 28, 2020275 Town Line RoadHouse$1,315,000——X
Jul 10, 20201296 Town Line RoadHouse$3,250,00062021X
Jan 22, 20207 Town Line RoadHouse$2,500,000——X
Nov 18, 20191258 Town Line RoadHouse$3,390,00062021X
Aug 1, 2019139 Town Line RoadHouse$10,750,000——X
Jul 30, 201937 Town Line RoadHouse$4,450,000——X
May 13, 2019311 Town Line RoadHouse$1,500,000——X
Jul 26, 2018274 Town Line RoadLand · house on the 2025 roll†$6,600,00082021—
May 18, 2018164 Town Line RoadHouse$11,500,00062021X
Jul 26, 201735 Town Line RoadHouse$5,773,000——X
Jan 31, 2017381 Town Line RoadHouse$1,850,000——X

† Recorded as land when it sold (vacant, or a house the buyer took down); the 2025 assessment roll now shows a house. Land sales never enter a house median. Sale date is the date of sale on the transfer form. Beds and year built come from the assessment roll where it records them. Source: New York State real property transfer record (form RP-5217, filed with every deed), arm's-length sales as flagged by the state. These figures are a separate series from the Roebling Index, which is built from published market reports. How these tables are built.

Flood and coastal exposure

9 of 115 residential and vacant parcels sit in FEMA’s 1% annual-chance flood area (zones VE, AE, A or AO), where a mortgage from a federally regulated or insured lender requires flood insurance on the building.

FEMA zoneParcelsWhat it means for an owner
VE — coastal high-hazard (wave action)2Ocean-facing land exposed to storm waves of 3 feet or more. Flood insurance is required with a federally backed mortgage and costs the most here. A new or substantially rebuilt house must stand on piles or columns, with its lowest structural beam at or above the base flood elevation, and only breakaway walls below.
AE — 1% annual-chance flood, base flood elevation set7A 1% chance of flooding in any year (about 26% over a 30-year mortgage). Flood insurance is required with a federally backed mortgage. A new or substantially improved house must have its lowest floor at or above the base flood elevation shown on the map; local codes can require more.
X (shaded) — 0.2% annual-chance flood2A 0.2% annual chance of flooding (the “500-year” flood). Flood insurance is not federally required, but it is usually available at lower rates and a lender may still ask for it.
X — minimal flood hazard104Outside the mapped flood areas. Flood insurance is not federally required. Flooding can still happen from heavy rain and drainage.

Loans. In zones VE, AE, A and AO, any mortgage made, insured or bought by a federally regulated lender, Fannie Mae, Freddie Mac, FHA or VA requires flood insurance on the building for the life of the loan. A lender can require it in zone X as well. A cash buyer is not required to insure.

Premiums. Since 2021 the National Flood Insurance Program prices each house on its own features (elevation, distance to water, cost to rebuild), so the zone is a starting point, not the price. Private flood policies are an alternative. An elevation certificate is the document every insurer asks for.

Renovating. In the 1% flood area, if work on a house costs half or more of the building’s market value, or a storm damages it that badly, the whole house must be brought up to current flood rules, which usually means raising it. Plan a renovation budget against that line.

Zone at each tax parcel’s center point; part of a parcel can sit in a different zone. Source: FEMA National Flood Hazard Layer (Suffolk County, map 36103C), retrieved 2026-11-12; flood insurance rate map panels effective Sep 25, 2009. A parcel-level determination needs the current map panel, any Letter of Map Revision or Amendment, and an elevation certificate. State coastal erosion hazard areas are mapped separately and are not shown here. Flood and coastal-erosion guide.

Own on Town Line Road?

Request a pricing review of your property, prepared from the recorded sales on and around the road and what the public record shows about the parcel. Or ask about buying here.

Prefer to speak directly? Schedule a consultation →
Corey Cohen, Licensed Associate Real Estate Broker · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com

Considering a Hamptons purchase or sale?

A 30-minute consultation is the right starting point — the specific place, road or property you’re weighing, what the public record does and doesn’t settle, the diligence that matters on the South Fork, and connecting you with the right Compass East End specialist.

Corey Cohen
Corey Cohen
Licensed Associate Real Estate Broker · The Roebling Team at Compass
Schedule a consultation →
A note on representation

The Roebling Team at Compass is led by Corey Cohen, a New York licensed associate real estate broker. For the Hamptons we bring along a vetted Compass agent who specializes in the East End. This page and its calculators are research, not an offer of representation.