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$10,500,000
11 Days On Site

158 Cobb Road
Water Mill, NY 11976

For Sale|Single Family Residence|Active
7
Beds
9
Total Baths
6
Full Baths
3
Partial Baths
9,600
SqFt
$1,094
/SqFt
2025
Built
County:
Suffolk
Listing courtesy of Corcoran namato@corcoran.com
158 Cobb Road158 Cobb Road158 Cobb Road158 Cobb Road
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Monthly Payment (Est.)

$47,905
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2025 Information is deemed reliable but not guaranteed.

New Construction | Water Mill South Just completed by boutique custom builder Heartwood Corp, this 7-bedroom, 9-bathroom, 9,600-square-foot Water Mill South estate showcases signature craftsmanship and refined detail. Positioned on prestigious Cobb Road behind a motorized gate and enveloped by mature, professionally designed landscaping, the property offers a private retreat moments from Flying Point Beach and Southampton Village. A soaring two-story foyer introduces the open, light-filled layout, highlighted by architectural floor-to-ceiling millwork on a double-sided gas fireplace shared with the living room. The dining area flows into a fully outfitted butler’s pantry with sink, ice maker, wine refrigerator, and walk-in pantry. The chef’s kitchen blends elegance and performance with custom white oak and painted cabinetry, integrated luxury appliances, and a hybrid waterfall island ideal for entertaining. The first-floor junior suite features a private patio, two walk-in closets, and a large spa-inspired bath with double vanity and privacy-glass shower enclosure that welcomes natural light. The living room, kitchen, foyer, and junior suite all overlook the landscaped grounds and pool, creating seamless indoor-outdoor living. A mudroom with garage access and a powder room complete the main level. Upstairs, the primary suite is a tranquil sanctuary offering two walk-in closets, a luxurious bath with soaking tub, separate vanities, makeup station, and privacy-glass shower and water closet, plus a dedicated office and serene views. Four additional ensuite bedrooms, a bonus room, and a custom-outfitted laundry room complete the second floor. The lower level is designed for recreation, featuring a glass-enclosed wine cellar, den with wet bar and wine cooler, flexible gym/media/game space with exterior access, a private sauna with Bluetooth controls, a full bath with steam shower, powder room, and two guest or staff bedrooms. Outdoors, resort-style amenities include a heated saltwater Gunite pool with integrated spa and sundeck, outdoor shower, stainless-steel kitchen and bar, and a dedicated outdoor powder room for poolside convenience. Expansive patios and lush landscaping set the atmosphere for effortless summer living. With Wi-Fi–enabled smart-home capabilities, custom cabinetry, tailored closet systems, central vacuum, laundry on two levels, and a radiant-heated two-car garage, 158 Cobb Road embodies timeless sophistication, abundant natural light, and modern Hamptons craftsmanship.

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Listing Snapshot
Price 
$10,500,000
Days On Site 
11 Days
Bedrooms 
7
Inside Area (SqFt) 
9,600 sqft
Total Baths 
9
Full Baths 
6
Partial Baths 
3
Lot Size 
0.53 Acres
Year Built 
2025
MLS® Number 
937172
Status 
Active
Property Tax 
$15,015.24
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
2 weeks agoListing first seen on site
2 weeks agoListing updated with changes from the MLS®
General Features
Acres 
0.53
Garage 
Yes
Garage Spaces 
2
Parking 
DrivewayGarageHeated Garage
Property Sub Type 
Single Family Residence
Sewer 
Septic Tank
Style 
Colonial
Utilities 
Natural Gas AvailableElectricity ConnectedNatural Gas ConnectedWater Connected
Water Source 
Public
Interior Features
Appliances 
Convection OvenDishwasherDryerENERGY STAR Qualified AppliancesFreezerGas CooktopGas OvenGas RangeHumidifierOtherOvenRangeRefrigeratorStainless Steel Appliance(s)WasherWine Refrigerator
Basement 
FinishedFullWalk-Out Access
Cooling 
Central Air
Fireplace 
Yes
Heating 
ENERGY STAR Qualified EquipmentNatural Gas
Interior 
Built-in FeaturesCentral VacuumChandelierDouble VanityEat-in KitchenEntrance FoyerHigh CeilingsHis and Hers ClosetsIn-Law FloorplanKitchen IslandNatural WoodworkPantryMaster DownstairsSoaking TubWalk-In Closet(s)Wet BarWired for Sound
Laundry Features 
In BasementLaundry RoomMultiple Locations
Spa 
Yes
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Exterior Features
Construction Details 
Other
Patio And Porch 
Patio
Pool Features 
In GroundPool/Spa ComboSalt WaterPrivate
Private Pool 
Yes
Spa 
Yes
Community Features
School District 
Southampton
Schools
School District
Southampton
Elementary School
Southampton Elementary School
Middle School
Southampton Intermediate School
High School
Southampton High School
Listing courtesy of Corcoran namato@corcoran.com


Based on information submitted to the MLS GRID as of 2025-11-30 08:39 PM EST. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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