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Mount Sinai Homes for Sale

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  • /44

    $600,000

    • 3 Beds
    • 2 Baths
    • 1,344 Sq Ft

    161 Harbor Beach Rd, Mount Sinai, NY 11766

    **Waterfront Retreat at Mount Sinai Harbor - Perfect for Snowbirds or Second Home Buyers!** Welcome to your slice of paradise near Cedar Beach, to Long Island Sound and your own private walking path to the shoreline. This charming home, rebuilt in 1977, boasts stunning harbor views and numerous upgrades since 2016, including: - An all-season enclosed porch - Many new windows for natural

    Agent Photo

    Kenneth Trestka

    Genstone Properties

    (631) 529-6207

    161 Harbor Beach Rd, Mount Sinai, NY 11766
  • /21

    $1,127,000

    • 5 Beds
    • 3.5 Baths
    • 3,302 Sq Ft

    16 Island Trail, Mount Sinai, NY 11766

    beautiful Post Modern/Victorian located in a private community backing a pond, enjoy beautiful views from your backyard or master bedroom balcony! 2 story entry, hardwood floors w/Brazilian Kempas in Lvg Rm & Den, custom millwork throughout, custom fireplace mantel with gas fireplace insert, custom kitchen w/stainless appliances, granite counters, 6 burner gas stove, wall oven with warming tray,

    Maria Mejia Martinez EXP Realty

    16 Island Trail, Mount Sinai, NY 11766
  • /49

    $849,990

    • 4 Beds
    • 2.5 Baths
    • 2,076 Sq Ft

    23 Little Harbor Rd, Mount Sinai, NY 11766

    Welcome to this beautifully maintained 4-bedroom, 2.5-bath Central Hall Colonial, gracefully situated on a pristine 0.7-acre lot of park-like grounds. This inviting home offers the perfect blend of elegance, comfort, and modern convenience.The first floor features a formal living room and a formal dining room—ideal for entertaining—along with a stunning chef’s kitchen equipped with cherry

    Carrie Mitchell Century 21 KR Realty

    23 Little Harbor Rd, Mount Sinai, NY 11766
  • /33

    $1,125,000

    • 5 Beds
    • 2.5 Baths
    • 3,360 Sq Ft

    39 Island Trail, Mount Sinai, NY 11766

    Welcome to this beautifully expanded Oxford II model, nestled in a sought-after Island Estates development and built in 2005. This spacious home offers the perfect blend of classic charm and modern convenience, featuring an open flowing layout ideal for entertaining and everyday living. Entering into this impressive 2 story foyer further enhanced with a unique electric adjustable fixture to

    Gina Amen American Real Estate Assoc Inc

    39 Island Trail, Mount Sinai, NY 11766
  • /50

    $1,300,000

    • 5 Beds
    • 3.5 Baths
    • 4,400 Sq Ft

    141 Shore Rd, Mount Sinai, NY 11766

    Magnificent Custom Built Post Modern home set in a secluded and pristine setting within Historic Mount Sinai. Truly a one of a kind home situated on breathtaking grounds. Winter water views, private and set away from the hustle and bustle on 1.24 acres of lush natural scenery. Being sold fully furnished with many custom built-ins. Home features; Soaring ceilings throughout, gorgeous windows to

    Maria Caifa Coldwell Banker American Homes

    141 Shore Rd, Mount Sinai, NY 11766
  • /33

    $1,199,000

    • 6 Beds
    • 5 Baths
    • 4,150 Sq Ft

    97 Chestnut St, Mount Sinai, NY 11766

    Welcome to 97 Chestnut Street, an exceptional investment opportunity in the heart of Mount Sinai. This spacious property offers 6 bedrooms and 5 full bathrooms, thoughtfully distributed across well designed living areas. Each room features ample closet space and large windows that invite natural light.Perfect for entertaining or relaxing, the home includes a large outdoor area complete

    Francisco Arrieta Telemundo Realty Corp

    97 Chestnut St, Mount Sinai, NY 11766
  • /19

    $899,000 Open Wed 6PM - 7PM

    • 4 Beds
    • 2.5 Baths
    • 2,348 Sq Ft

    2 Sea View Ln, Mount Sinai, NY 11766

    **Welcome to Seaview Lane**—a true gem nestled in one of the North Shore's most coveted and picturesque neighborhoods. Set against the backdrop of the stunning Mt. Sinai Harbor and the renowned Chandler Estates, now known as The Chandler Preserve, this serene and highly sought-after location is steeped in history and defined by its sunsets, coastal charm, and lush natural landscape.This

    Adrianne Faranda Realty Connect USA L I Inc

    2 Sea View Ln, Mount Sinai, NY 11766
  • /33

    $899,000

    • 4 Beds
    • 2.5 Baths
    • 2,348 Sq Ft

    2 Seaview Ln, Mount Sinai, NY 11766

    **Welcome to Seaview Lane**-a true gem nestled in one of the North Shore's most coveted and picturesque neighborhoods. Set against the backdrop of the stunning Mt. Sinai Harbor and the renowned Chandler Estates, now known as The Chandler Preserve, this serene and highly sought-after location is steeped in history and defined by its sunsets, coastal charm, and lush natural landscape. This

    Adrianne Faranda Realty Connect USA L I Inc

    2 Seaview Ln, Mount Sinai, NY 11766
  • /50

    $1,099,000

    • 4 Beds
    • 3.5 Baths
    • 3,944 Sq Ft

    3 Heidi Ln, Mount Sinai, NY 11766

    Secluded Gem in Blue Ribbon Mount Sinai School District!Discover an exceptional living experience at 3 Heidi Lane, a stunning Colonial-style residence privately nestled at the end of a serene cul-de-sac in desirable Mount Sinai. Perfectly placed on just under an acre, this property offers unrivaled privacy, with one side extending into state owned land, creating a tranquil and natural buffer

    Mia Kaiser Signature Premier Properties

    3 Heidi Ln, Mount Sinai, NY 11766
  • /10

    $975,000

    • 5 Beds
    • 2.5 Baths
    • 3,200 Sq Ft

    23 Island Trail, Mount Sinai, NY 11766

    3200+ sq ft, soaring ceilings, open floor plan, generous room sizes. Elegant entry, 19 foyer w Grand staircase that leads to landing. Main level & room sized landing features hardwoods floors. Lots of windows and natural light. Main level Eat in Kitchen/Formal LR/Formal DR/ Den with Fireplace/Butler Pantry/Bedroom/ Half Bath. This Upstairs theres a Double door Wonderful Primary Bedroom w Tray

    John Donahue Unit Properties

    23 Island Trail, Mount Sinai, NY 11766
  • /21

    $599,990 Open Wed 5PM - 6:30PM

    • 3 Beds
    • 2 Baths
    • 1,467 Sq Ft

    2 Guardian Ct, Mount Sinai, NY 11766

    Hurry! Great spacious ranch in a perfect cul-de-sac location! Fantastic high ceilings and great floorplan! Newer siding and garage doors! Large 1/2 acre plus lot that can be your backyard oasis! Large deck! Just needs a little updating and this home can be one level living at its best!!!! Close to all that Mount Sinai has to offer.

    Kenneth Kroncke Realty Connect USA L I Inc

    2 Guardian Ct, Mount Sinai, NY 11766
  • /36

    $670,000

    • 4 Beds
    • 1.5 Baths
    • 2,070 Sq Ft

    43 Westcliff Dr, Mount Sinai, NY 11766

    Charming Family Home in a Prestigious CommunityDiscover your dream home in this charming, two-story property located in highly sought-after Mt Sinai! Nestled on a quiet street, this property offers an ideal setting for those looking for more space. With four spacious bedrooms and 1.5 baths, there’s ample room for everyone to spread out and enjoy. The heart of the home is the recently

    James Acierno Real Broker NY LLC

    43 Westcliff Dr, Mount Sinai, NY 11766
  • /36

    $749,999

    • 3 Beds
    • 3.5 Baths
    • 2,154 Sq Ft

    145 Chestnut St, Mount Sinai, NY 11766

    Welcome to 145 Chestnut Street, a beautifully maintained custom-built ranch set on a serene, park-like acre in the desirable Mount Sinai School District. Freshly painted interiors, spacious rooms, extra-wide hallways, and abundant natural light stream through quality Pella windows.Enjoy an inviting eat-in kitchen with center island, propane stove, two pantries, and scenic backyard views.

    David Friedman Howard Hanna Coach

    145 Chestnut St, Mount Sinai, NY 11766
  • /28

    $799,000

    • 4 Beds
    • 2.5 Baths
    • 2,078 Sq Ft

    11 Gladysz Way, Port Jefferson, NY 11777

    Welcome to 11 Gladysz Way, a beautifully cared-for 4-bedroom, 2.5-bath colonial nestled on a quiet cul-de-sac in the heart of Port Jefferson. This inviting home offers the perfect blend of comfort, space, and convenience—all within the sought-after Comsewogue School District.Step inside to a warm and spacious first floor featuring a formal living room with a wood-burning fireplace, a

    Justin Loguercio Next Level Homes Group Ltd

    11 Gladysz Way, Port Jefferson, NY 11777
  • /24

    $499,000

    • 2 Beds
    • 2 Baths
    • 1,335 Sq Ft

    34 Chippendale Dr, Mount Sinai, NY 11766

    Come on over to this Adorable ranch-style unit in Woodridge Strathmore Terrace, a 55+ Adult Community! This spacious 2 bedroom, 2 bathroom cutie features one level living at its finest! Gorgeously renovated unit has wonderful flow and character. Features include new roof, windows, and floors. Newly upgraded Quartz kitchen counters, upgraded bathrooms, appliances, rain gutters, HVAC, and so much

    Nicholas Maguire Compass Greater NY LLC

    34 Chippendale Dr, Mount Sinai, NY 11766
  • /37

    $579,999

    • 2 Beds
    • 2 Baths
    • 1,820 Sq Ft

    164 Ira Rd, Mount Sinai, NY 11766

    Elegant 2-Bedroom Upper Unit with Private Elevator in Plymouth Estates – Mount SinaiSet within the secure, gated 55+ community of Plymouth Estates, this beautifully maintained upper-level end unit offers comfort, space, and convenience just moments from Mount Sinai Harbor and vibrant Port Jefferson Village.This sun-filled home features 2 bedrooms and 2 full bathrooms, along with rare perks such

    Nicholas Colonna Aliano Real Estate

    164 Ira Rd, Mount Sinai, NY 11766
  • /37

    $579,999

    • 2 Beds
    • 2 Baths
    • 1,820 Sq Ft

    166 Ira Rd, Mount Sinai, NY 11766

    Mount Sinai – Plymouth Estates – Gated 55+ CommunityImmaculate upper-level end unit in the prestigious Plymouth Estates 55+ gated community, just minutes from Mount Sinai Harbor and Port Jefferson Village. This bright and spacious 2-bedroom, 2-bath unit features its own private elevator, central air, natural gas, and a 1-car attached garage. Enjoy an open layout with vaulted ceilings, a cozy gas

    Nicholas Colonna Aliano Real Estate

    166 Ira Rd, Mount Sinai, NY 11766
  • /39

    $1,649,990 Open Sat 12:30PM - 2PM

    • 4 Beds
    • 4.5 Baths
    • 4,400 Sq Ft

    43 Casey Ln, Mount Sinai, NY 11766

    Welcome to this magnificent home in prestigious Mount Sinai. This home features a front porch with lighting and front waterfall. Enter into a two-story foyer through the double glass doors from Italy. This leads into the formal living room, large formal dining room with tray ceilings and into the magnificent new kitchen with an island. The kitchen has granite countertops, Viking stainless

    Maryann Adams Signature Premier Properties

    43 Casey Ln, Mount Sinai, NY 11766
  • /35

    $749,990

    • 3 Beds
    • 2.5 Baths
    • 2,774 Sq Ft

    101 Mountain Ridge Dr, Mount Sinai, NY 11766

    Magnificent Private Water View Community Situated on 23 Acres of Parklike Land With Gorgeous Water views of Mount Sinai Harbor, Cedar Beach and the Long Island Sound. The Home Boasts: Almost 4,000 sq ft of Living Space Including the Finished Basement. Open Floorplan With 3 Bedrooms and 2.5 Bathrooms. Refinished Hardwood Oak Flooring. New Anderson Windows and Patio Sliding Door With Built -In

    Peter Foglia RE/MAX Integrity Leaders

    101 Mountain Ridge Dr, Mount Sinai, NY 11766
  • /18

    $385,000

    • 1 Bed
    • 1 Bath
    • 504 Sq Ft

    137 C Shore Rd, Mount Sinai, NY 11766

    Ideal Location and Low Taxes! Why rent when you can own this charming 1 Bedroom, 1 Bath Cottage Perfect for First Time Homebuyer, Downsizer or Investment Opportunity. Wonderful Location in Mount Sinai with Tremendous Potential. The property is very private, close to Mount Sinai Harbor and the home is well maintained.Sold As-Is.

    Denise Voelker Daniel Gale Sothebys Intl Rlty

    137 C Shore Rd, Mount Sinai, NY 11766
  • /31

    $575,000

    • 2 Beds
    • 2 Baths
    • 1,317 Sq Ft

    271 Andrew Dr, Mount Sinai, NY 11766

    Introducing 271 Andrew Drive located in Plymouth Estates a Highly Sought After Community with 24 Hour Gated Security and lots of Amenities. This is a 'Dorchester Model' with an Open Floor Plan. The Kitchen is complete with Stainless Steel Appliances, Granite counters, and Custom Cabinets. The Great Room has a Gas Fireplace for those cold winter days. Your Primary Bedroom has a Bay Window, Walk-in

    Judith Seyfried Realty Connect USA LI Inc

    271 Andrew Dr, Mount Sinai, NY 11766
  • /26

    $629,000

    • 4 Beds
    • 2 Baths
    • 1,808 Sq Ft

    23 Wheat Path Rd W, Mount Sinai, NY 11766

    Beautifully renovated Ranch in desirable Mount Sinai schools. This 4 Bedroom 2 Bath Ranch is ready to move in. Brand new Roof Siding and Windows. Tastefully designed kitchen with new Cabinets Quartz countertop and all new stainless-steel appliances. Upgraded Bathrooms with new vanities and fixtures. New recessed lighting throughout the house. Refinished Hardwood floors. New doors and Mouldings.

    Mo Umar Realty Assist USA LLC

    23 Wheat Path Rd W, Mount Sinai, NY 11766
  • /6

    $799,999

    • Land
    • 2.82 Acres
    • $283,688 per Acre

    0 Canal Rd Unit KEY844080, Mt. Sinai, NY 11766

    Located in a charming residential neighborhood, this 2.8-acre wooded vacant lot offers an exceptional opportunity for builders, developers, or investors. Surrounded by beautiful homes, the property is serviced by public sewer, adding convenience to its prime location.According to the Town of Brookhaven zoning regulations, this property is located within an A1 Residential Zone, which requires a

    Kavneet Baweja Serhant LLC

    0 Canal Rd Unit KEY844080, Mt. Sinai, NY 11766
  • /32

    $999,000

    • 8 Beds
    • 4 Baths
    • 2,500 Sq Ft

    33 Peachtree Ln, Mount Sinai, NY 11766

    Ready To Move In! Amazing Investment Opportunity Or Perfect For Large Families Or Multi-Family Living. This Spacious 8-Bedroom, 4-Bathroom Home Sits On A .73 of an Acre And Features 2 Legal Kitchens. The Property Offers Multiple Separate Entrances, A Pool, And Recently Updated Systems, Including A Including A New Gas Hot Water Heating System And Septic Tank. With Great Potential For Long-Term

    Michael Fink BERKSHIRE HATHAWAY

    33 Peachtree Ln, Mount Sinai, NY 11766
  • /6

    $648,000

    • Land
    • 1.10 Acres
    • $589,091 per Acre

    225 Shore Rd, Mount Sinai, NY 11766

    The UnHamptons at Its Best!Discover a rare opportunity to own one of the last waterfront properties in Mt. Sinai, a picturesque North Shore hamlet offering coastal living—without Hamptons traffic!Spanning 1.1 acres, this partially cleared lot is ready for you to bring your vision to life. Whether you dream of a modern energy-efficient retreat, a charming coastal cottage, or a grand estate, the

    Linda Stowell Howard Hanna Coach

    225 Shore Rd, Mount Sinai, NY 11766
  • /2

    $1,590,000

    • 5 Beds
    • 3.5 Baths
    • 3,583 Sq Ft

    756 Mount Sinai-Coram Rd, Mount Sinai, NY 11766

    Discover the epitome of architectural brilliance with this cedar and brick-sided Modern Colonial. Offering 3,584 sq ft of finished living space within a 6,000-sq ft layout. This to be built property is on .78 acres. Oak floors throughout, 9-foot ceilings and light-filled spaces. Custom chef’s kitchen, quartz countertops, and high-end appliances. Custom butlers pantry. The living room is open,

    Cody Buchalter Michael Alexander Properties

    756 Mount Sinai-Coram Rd, Mount Sinai, NY 11766
  • /2

    $781,700

    • 4 Beds
    • 2.5 Baths
    • 3,302 Sq Ft

    734 Mount Sinai-Coram Rd, Mount Sinai, NY 11766

    Looking for a great opportunity? Look no more! This property has tons of potential and is average in living space size for the neighborhood. It is located close to main roads with easy access to local amenities, such as shopping, banking, schools, and various eateries. Per our APPRAISAL describe the property as a SFR (colonial) built in 1989. It has a GLA of approx. 3302 and has 4 bedroom and 2.5

    Christopher Rose REALHome Services & Solutions

    734 Mount Sinai-Coram Rd, Mount Sinai, NY 11766

Why Live in Mount Sinai

Mount Sinai in Long Island features a variety of home styles, including ranch-style, colonial, and 1980s contemporary houses. Historic homes are found along Old Country Road and Shore Road, with gated communities like The Hamlet at Willow Creek Homes. Properties often have larger lot sizes, with some farmhouses and horse ranches available. Waterfront homes on Harbor Beach Road and Mount Sinai Harbor offer scenic views and beach access. The neighborhood has a minor risk of flooding but requires insurance for hurricane-related wind damage. Crime rates are lower than the national average. Cedar Beach is a key attraction, offering playgrounds, a marina, and Tiki Joe’s Beach Club with live music. Cedar Beach West is popular for fishing and boating, featuring a fishing pier and the Mount Sinai Yacht Club. Heritage Center Park provides running paths, sports fields, and a recreation center, while the North Shore Rail Trail and Rocky Point State Pine Barrens Preserve cater to cyclists and hikers. Dining and shopping options are concentrated along Route 25A, with popular spots like Heritage Diner, Amici, and Midori Sushi & Steakhouse. Nearby Port Jefferson offers additional amenities. Mount Sinai School District is highly rated, with Mount Sinai Elementary, Middle, and High Schools all located on the same property. The district is recognized for its academic and athletic achievements. The neighborhood is car-dependent, with bus stops on Route 25A and a Long Island Rail Road station 2 miles away in Port Jefferson. Mather Hospital and St. Charles Hospital are also 2 miles away, and Long Island MacArthur Airport is 18 miles from the neighborhood.

Frequently Asked Questions

Is Mount Sinai a good place to live?
Mount Sinai is a good place to live, receiving 4.5 stars from its residents. Mount Sinai is considered car-dependent and somewhat bikeable. Mount Sinai is a suburban neighborhood with a crime score of 2, making it safer than the average neighborhood in the U.S. Mount Sinai has 7 parks for recreational activities. It is sparse in population with 2.8 people per acre and a median age of 46. The average household income is $170,092 which is above the national average. College graduates make up 48.9% of residents. A majority of residents in Mount Sinai are home owners, with 6% of residents renting and 94% of residents owning their home. A local real estate agent serving Mount Sinai can help you decide if this neighborhood is the right one for you. Learn more on our Mount Sinai neighborhood guide.
Is Mount Sinai, NY a safe neighborhood?
Mount Sinai, NY is safer than the average neighborhood in the United States. It received a crime score of 2 out of 10.
How much do you need to make to afford a house in Mount Sinai?
The median home price in Mount Sinai is $624,999. If you put a 20% down payment of $125,000 and had a 30-year fixed mortgage with an interest rate of 6.74%, your estimated principal and interest payment would be $3,240 a month plus property taxes, HOA fees, home insurance, PMI, and utilities. Using the 28% rule, you would need to make at least $139K a year to afford the median home price in Mount Sinai. The average household income in Mount Sinai is $170K.
What are the best public schools in Mount Sinai?
The best public schools that serve Mount Sinai are:
What are the most popular zip codes in Mount Sinai, Long Island, NY?
The most popular zip codes in Mount Sinai, Long Island, NY include 11766, 11764, 11776, 11777 and 11727.
What are the most popular neighborhoods near Mount Sinai, Long Island, NY?
The most popular neighborhoods near Mount Sinai, Long Island, NY are Setauket-East Setauket and East Shoreham.

Home Trends in Mount Sinai, NY

Housing Trends

Median Sale Price
$536,000
Median Single Family Sale Price
$964,000
Average Price Per Sq Ft
$439
Number of Homes for Sale
7
Last 12 months Home Sales
48
Months of Supply
1.80
Median List Price
$624,999
Median Change From 1st List Price
1%
Median Home Sale Price YoY Change
31%
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