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40 Deforest Rd, Montauk, NY, 11954

6beds
6baths
4,800sqft
$17,495,000
$3,645price/sqft
$118,833/moest. monthly cost
$4,753,320/yrincome needed

About This Home

Never before seen, On The Break is a rare compilation of new construction luxury homes set amidst the natural landscape and vibrant cultural scene of Montauk. Encompassing two separate oceanfront lots, the enclave presents an unmatched opportunity to own in the highly sought after Ditch Plains area. One of the most iconic surf destinations on the East Coast, the break within Ditch Plains boasts powerful waves that attract surfers all year round. A captivating locale due to this foremost surf break, Montauk provides a truly unparalleled setting for creativity, community, and oceanfront living within this exclusive enclave. Set on a sprawling 1 +/- acre parcel with an impressive 95 feet of direct ocean frontage, Casa Las Olas stands as the quintessence of opulent coastal living. Recently unveiled, this newly constructed residence encompasses 4,800 +/- sq. ft. of refined living space. Crafted with visionary brilliance by renowned architect Boris Baranovich, every facet of the design harmoniously accentuates unparalleled ocean views that grace nearly every vantage point within the six-bedroom home. A grand double-height entry foyer sets the tone for the interior, which has been partially staged with luxury furnishings curated by Meredith Baer. An ode to open concept living, the main level seamlessly blends two sitting areas, formal dining, and a fully-equipped kitchen which incorporates top-tier appliances, an inviting island with ample seating, and a separate pantry. The three-car attached garage is ideally situated towards the front of the property, with direct access to the laundry and mudroom. Positioned on the second level, the spacious primary suite features a fireplace with sitting area, steam shower, multiple closets, and a private waterside terrace. Four additional bedrooms complete this floor. Accessed via glass doors along the main living area, an expansive deck spans almost the entire width of the home. With ample room for entertaining, the exterior affords outdoor dining, a covered sitting area, and an oceanside heated 20' x 30' gunite pool with sun shelf and spa. Meticulous landscaping by Terra Designs exudes an aura of natural elegance while ensuring total privacy within the property. With the pristine ocean beach directly outside, Casa Las Olas perfectly captures the allure of the Montauk lifestyle.Some images have been digitally altered.

Getting Around

1
WalkingCar-Dependent
0
TransitVery Limited Transit
30
BikeSomewhat Bikeable

Schools

7/10
Montauk SchoolGrades PK-82.3 mi

Construction

Condition

  • Property condition: New Construction
  • New construction: Yes
  • Year built: 2023

Type & Style

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

Interior

Basement

  • Basement: No

Bedrooms & Bathrooms

  • Bedrooms: 6
  • Bathrooms: 6
  • Full bathrooms: 5
  • 1/2 bathrooms: 1

Cooling

  • Cooling features: Central Air

Features

  • Fireplace: Yes

Interior Area

  • Total structure area: 4,800
  • Total interior livable area: 4,800 sqft

Property

Details

  • Parcel number: 0300032000600014000

Features

  • Private pool: Yes
  • Pool features: Heated
  • Has spa: Yes
  • Spa features: Heated
  • Has view: Yes
  • View description: Water
  • Has water view: Yes
  • Water view: Water
  • On waterfront: Yes
  • Waterfront features: Waterfront
  • Frontage type: Waterfront

Lot

  • Lot size: 1 Acres

Parking

  • Parking features: GarageAttached
  • Has garage: Yes

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

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

How This Home’s Risks Compare

Hurricane
Inland Flooding
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 $88,464$1,061,568
Home Insurance *$5,958$71,496
Property Taxes $23,618$283,416
Electricity $793$9,518
Total$118,833$1,425,996
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$4,074,274/yr
40% on housing$3,564,990/yr
45% on housing$3,168,880/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

$3,645This listing

vs Other Active Listings

Avg $/sqft

ZIP 11954$1,455
Suffolk County$722

vs Homes Sold Last Month

Median $/sqft

ZIP 11954$870
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
2025-08-16Price change$17,495,000
2025-05-22Price change$17,950,000
2024-06-19Price change$19,950,000
2024-04-16Listed for sale$23,500,000
2024-03-18Listing removed$24,950,000
2023-09-30Price change$24,950,000
2023-07-21Listed for sale$27,500,000
2021-03-01Listing removed--
2020-08-24Pending sale$5,995,000
2020-05-27Listed for sale$5,995,000
2020-03-22Listing removed$5,995,000
2020-01-31Price change$5,995,000
2019-03-26Listed for sale$6,995,000

New Construction

AgentErica Grossman - Real Estate Sales Person
BrokerageDouglas Elliman Real Estate

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