About This Home

This 24-bedroom, 38-bathroom single family at 70 & 71 Cobb Lane in Water Mill, NY is listed for $82,500,000 ($1,833 per sqft). the home offers 45,000 sqft of living space on a 21.00 acres lot.

Key Features

  • 21.00 acre lot
  • Waterfront

Property Details

27 full, 11 half
11-car garage

Amenities

WaterfrontView
Listing Description

Presenting a once-in-a-lifetime opportunity, 70 & 71 Cobb Lane are now available together for the first time. Set on a private peninsula in Water Mill South, this extremely rare generational compound spans over 21 total acres. With 24 bedrooms and 38 bathrooms spread across two magnificent residences, the unique multi-parcel offering represents true opulent living.

Meticulously designed by renowned architect Barnes Coy Architects, the waterfront property encompasses a 17,173 +/- sq. ft. house with 13 bedrooms and a plethora of amenities including a tennis court, saltwater gunite pool and spa, and a two-level pool house with a commercial kitchen, gym, sauna, and pool-side deck.

Located on the inland portion of the compound, the secondary property is comprised of a 28,000 +/- sq. ft. residence along with a heated pool and spa, pool house with pergola and moat, courtyard with fire pit, and multiple lounging/dining areas. Designed for entertainment, the second home features extensive interior amenities including a 14-seat mo

vie theatre, 2-lane bowling alley, half court basketball, professional gym, 350 bottle wine cellar, spa with sauna and steam room, indoor swimming pool, and a game room with billiards, 750 gallon shark tank, wet bar, and arcade. Showcasing over 3,100 feet of private shoreline on Burnett Creek, the compound offers access to Mecox Bay via a private dock.

With a perfect marriage of architectural splendor and natural beauty, this extraordinary piece of Hamptons' history presents an unrivaled program with a picturesque south of the highway setting amidst a backdrop of bay views.

Monthly Cost Estimate

$441,227/mo

20% down · 6.5% · 30 years

Principal$59,665
Interest$357,500
Insurance$24,063

Estimates only. Actual payments may vary.

Location

70 & 71 Cobb Lane

Water Mill, NY 11976

Features & Amenities

Interior Features

Walk-In Closet(s)Entrance Foyer

Property Details

Views

Ocean

Outdoor Features

Patio

Questions & Answers

This 24-bedroom, 38-bathroom single family at 70 & 71 Cobb Lane is listed at $82,500,000 ($1,833/sqft). The estimated monthly payment is $441,228 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: 21.00 acre lot, Waterfront. Interior Features: Walk-In Closet(s), Entrance Foyer.

This property is listed by Hedgerow Exclusive Team.

HT

Hedgerow Exclusive Team

Agent at Hedgerow Exclusive Properties

Listed by Hedgerow Exclusive Properties · Broker phone: 631-296-8543 · Broker website

MLS# 11263336· Source: My State MLS· 944 days on PropertySimple

Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

70 & 71 Cobb Lane, Water Mill, NY 11976

Open this listing in: