3 Heidi Lane Mount Sinai, NY $ 1,050,000
3 Heidi Lane
$ 1,050,000
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3 Heidi Lane

Mount Sinai, NY, 11766
$ 1,050,000
Bedrooms4 Baths3.1 Sq 3,992

Monthly Estimate*

$ 6,465

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Single Family Home for sale in Mount Sinai, NY

for $1,050,000 with 4 bedrooms and 3 full baths, 1 half bath. This 3,992 square foot home was built in 2001 on a lot size of 0.93.

Tucked away at the end of a quiet cul-de-sac in the highly sought-after Mount Sinai School District, this exceptional Colonial offers privacy, space, and versatility on just under an acre bordering protected state-owned forest land. With no future development permitted beside the property, the setting provides a rare sense of seclusion and direct access to an expansive natural backdrop that extends far beyond the lot lines. Perched atop a hill, the property also enjoys scenic views stretching toward the Long Island Sound. Inside, this spacious 4-bedroom, 3.5-bath residence features an open and inviting layout designed for both everyday living and entertaining. The main level includes a huge living room filled with natural light, an eat-in kitchen with new refrigerator, dishwasher, and microwave, a formal dining room, and a library offering the perfect setting for a home office or reading retreat. The desirable first-floor primary suite includes a spa-like bathroom with a Jacuzzi tub, creating a comfortable and private sanctuary. A separate guest wing with its own entrance provides incredible flexibility for extended guests, creative workspace needs, or possible mother-daughter living with proper permits. Additional updates include select new cabinetry in the secondary kitchen area. The expansive unfinished basement features high ceilings and offers endless potential for future living space, including a recreation room, gym, dance studio, playroom, or media area. Outside, enjoy the peaceful surroundings, wooded privacy, and ample outdoor space ideal for entertaining, relaxing, or simply enjoying nature. Complete with a two-car garage and an unbeatable location near parks, beaches, shopping, dining, and major roadways, 3 Heidi Lane presents a rare opportunity to own a truly private retreat in Mount Sinai.

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Single Family Active

Price

$ 1,050,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 23,930

Style

Colonial,Raised Ranch

Lot Size

0.93

Year Built

2001

Town/City

Mount Sinai

County/Region

Suffolk

MLS | Web ID

997676

Features
Interior
Interior Amenities First Floor Bedroom First Floor Full Bath Cathedral Ceiling(s) Ceiling Fan(s) Double Vanity Eat-in Kitchen Entrance Foyer Formal Dining High Ceilings High Speed Internet His and Hers Closets In-Law F
Basement Full
Flooring Ceramic Tile Hardwood Tile
Total Fireplaces 1
Fireplace Features Family Room Wood Burning
Basement Features Full
Basement (Y/N) Y
Window Features Blinds Skylight(s) Wood Frames
Fireplace Y/N Y
Half Baths 1
Total Bedrooms 4
Total Baths 4
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General
Sewer Septic Tank
Heating Natural Gas
Cooling Central Air Ductwork
Utilities Cable Connected Electricity Connected Natural Gas Connected Phone Available Trash Collection Public Water Connected
Appliances Convection Oven Cooktop Dishwasher Disposal Dryer Electric Oven Electric Water Heater ENERGY STAR Qualified Appliances Exhaust Fan Gas Cooktop Gas Oven Oven Range Refrigerator Stainless Steel Applian
Garage Spaces 2
Patio/Porch Features Deck Terrace
Architectural Style Colonial Raised Ranch
Construction Materials Vinyl Siding
Year Built 2001
View Neighborhood Panoramic Skyline Trees/Woods Water
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 0200-093-00-06-00-001-000
County Suffolk County
Property Type Residential
HOA N
Facing Direction South
Garage Y/N Y
Total Rooms 11
Full Baths 3
High School ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL
City Brookhaven
Senior Community Y/N N
High School District Mount Sinai
Carport Y/N N
Spa Features Bath
Elementary School Mt Sinai Elementary School
Property Attached Y/N N
Tax Annual Amount 23930.56
Middle/Junior High School Mt Sinai Middle School
Virtual Tour https://my.matterport.com/show/?m=YAhVvGFpcqA&brand=0
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Mount Sinai
Elementary School District Mount Sinai
Tax Assessed Value 5600
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Exterior
Exterior Amenities Garden Mailbox Rain Gutters
Fencing Fenced
Parking Features Driveway Garage Garage Door Opener Driveway Garage Garage Door Opener
Water Source Public
Spa Y
Building Area Total 3992
Waterfront Y/N N
Other Equipment Compressor Irrigation Equipment
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Internal Only
Street Number 1 3
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* Excluded Features
List By
William Ortiz

Listing Agent

Redfin Real Estate

Broker

631-337-8238

Contact

Affordability Calculator

$8,459
Per Month
76%
24%
0%
Monthly Principal & Interest
$6,465
Monthly Property Taxes
$1,994
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4668039 Elementary School
4818774 Middle School
Robert M Grable Jr Mount Sinai High School High School
Pricing History
DatePricePrice ChangeDescription
5/12/2026$1,050,000 Listed Price

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3 Heidi Lane, Mount Sinai, NY, 11766 is a Single Family Home for sale at $1,050,000 with 3,992 sqft and a lot size of 0.93. 3 Heidi Lane has 4 bedrooms, 3.1 baths, and was built in 2001. The property's zip code is 11766 which is in Mount Sinai, NY