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322 Rose Hill Rd, Water Mill, NY, 11976

5beds
5baths
4,110sqft
$10,250,000
$2,494price/sqft
$56,698/moest. monthly cost
$2,267,920/yrincome needed

About This Home

Nestled in the heart of Water Mill South, this historic luxury estate is a rare opportunity to own a masterpiece of Shingle Style architecture. Renovated in 2007 and conceived and built in 1885 by Henry Turbell Rose, Rosemary Lodge stands as a testament to exceptional craftsmanship and enduring elegance. Just minutes from the ocean, 0.93-acre grounds featuring a 4,110-square-foot residence, pool house, and a pool. This beautifully designed home boasts 5 bedrooms, 4 bathrooms, and 1 half bathroom. Impeccably preserved, the home retains its museum-quality original paneling, hand-carved woodwork, stained glass windows, and intricate moldings. Each of the five bedrooms was individually crafted. The central living hall, paneled in ash, sets the tone for this architectural gem, while four working fireplaces feature hand-carved mantels, hidden cupboards, hand-painted designs, and custom tile inserts. Throughout the home, delicate floral motifs, ships, butterflies, and birds are carefully etched into the wood, along with the initials "RL," a homage to its storied past. The grand master suite is a private sanctuary, complete with a spa-like ensuite bath, a spacious walk-in closet, and a romantic terrace overlooking serene Hamptons farmland. A second-floor media room with a big-screen TV and fireplace offers the perfect retreat for gatherings. Designed for elegant entertaining, the chef's eat-in kitchen features a massive center island, professional gas stove with broiler, and seamless access to the outdoor lounge and dining area. Outside, a meticulously maintained rose garden greets visitors at the entrance, while the lush backyard oasis boasts a heated pool, pool house with a full bath and outdoor shower, and an alfresco cooking station with a large refrigerator and vegetable garden. Additional modern amenities include a state-of-the-art darkroom for film and photographic development, a dedicated exercise and bicycle shed, ample storage, and a newly installed electric vehicle charging station. Recognized in Houses of the Hamptons, Rosemary Lodge is listed on both the State and National Register of Historic Places for its exceptional integrity and preservation. This architectural treasure offers the rare chance to own a piece of Hamptons history, blending timeless elegance with modern luxury.

Getting Around

8
WalkingCar-Dependent
0
TransitVery Limited Transit
30
BikeSomewhat Bikeable

Schools

6/10
Southampton High SchoolGrades 9-122.3 mi
6/10

Construction

Condition

  • Year built: 1885

Type & Style

  • Home type: SingleFamily
  • Property subType: Single Family Residence

Interior

Basement

  • Has basement: Yes
  • Basement: Yes

Bedrooms & Bathrooms

  • Bedrooms: 5
  • Bathrooms: 5
  • Full bathrooms: 4
  • 1/2 bathrooms: 1

Cooling

  • Cooling features: Central Air

Features

  • Fireplace: Yes

Interior Area

  • Total structure area: 4,110
  • Total interior livable area: 4,110 sqft

Property

Details

  • Parcel number: 0900115000200013001

Features

  • Stories: 3
  • Private pool: Yes
  • Pool features: Heated

Lot

  • Lot size: 0.93 Acres

Parking

  • Parking features: None

Climate Risk is Financial Risk

Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.

Biggest Threats for This Home

  • Inland Flooding
    Inland FloodingRelatively High
  • Coastal Flooding
    Coastal FloodingModerate
  • Hurricane
    HurricaneModerate
  • Winter Weather
    Winter WeatherModerate
  • Tsunami
    TsunamiInsufficient Data

How This Home’s Risks Compare

Inland Flooding
Coastal Flooding
Hurricane
Winter Weather
Tsunami

FEMA Declared Disasters in Suffolk County and New York

Flood
Severe Storm
Snowstorm
Straight Line Winds
Tropical Storm
Winter Storm

Understanding the Costs

Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.

Estimated Costs Today

MonthlyAnnual
Mortgage $51,829$621,948
Home Insurance *$3,976$47,712
Property Taxes $214$2,568
Electricity $679$8,150
Total$56,698$680,376
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$1,943,931/yr
40% on housing$1,700,940/yr
45% on housing$1,511,946/yr

New York FAIR Plan Programs

New York Property Insurance Underwriting Association

Covered
WildfireWildfire
HailHail
WindWind
Visit Website →
Current Policies
Residential: 20,669Commercial: 1,556
Total Premiums$32.27M
Total Exposure$7.63B

How Costs Could Change Over Time

Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.

Insurance Growth Rate5-year average: 4.6%
4.6%
0%30.0%
Electricity Growth Rate10-year average: 7.1%
7.1%
0%15.0%
Property Taxes Growth Rate2-year average: 1.0%
1.0%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$2,494This listing

vs Other Active Listings

Avg $/sqft

ZIP 11976$2,009
Suffolk County$723

vs Homes Sold Last Month

Median $/sqft

ZIP 11976$1,141
Suffolk County$412

Current Market Trends

Median Price Per Square Foot

The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.

Historicals for This Listing

Zestimate History ($/sqft)

No zestimate history available

Price History

DateEventPrice
2026-04-12Price change$11,225,000
2025-09-18Price change$12,575,000
2025-04-10Listed for sale$14,250,000
2005-01-04Sold$2,750,000

For Sale by Agent

AgentSteven Dorn - Associate Real Estate Broker
BrokerageBrown Harris Stevens

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