Mt. Sinai Homes for Sale

Our website features the best real estate search for homes, condos, land and foreclosure properties available in Mt. Sinai and surrounding areas. It is the only site you will ever need! It is easy-to-use and updated by the official Realtor®’s database every 15 minutes.

You can save searches, and get daily email alerts of new listings, price changes, sold data, and market reports. Our Interactive Map Search allows you to view properties on a map or refine your search by drawing the boundaries around the area you desire.

Curious about what’s happening in your neighborhood? You can create a custom market report to see what’s active, under contract, and sold in your neighborhood!

Considering selling or refinancing your home? Get an INSTANT property valuation now!

Newest Mt. Sinai Homes for Sale

$1,699,000

2 Baths ⋅ 1066408 MLS

Extraordinary Opportunity on route 25A in Mount Sinai. Freestanding commercial building located directly along the heavily traveled Route 25A corridor. Situated on a primary thoroughfare in Mount Sinai, this approximately 2,152 sq. ft. property features J-2 Zoning (Neighbourhood Business)offering versatile potential for retails storefront, professional office, medical application, and much more! Property Features: High-Visibility location: featuring approximately 60 feet of direct frontage on Route 25A with strong daily traffic counts. * Flexible Layout: Adaptable interior floor plan suitable for various business models or investor objectives. * On-Site Parking: Dedicated parking lot providing 10 marked spaces for visitors and staff. * Commercial Hub: Positioned near established retail centers, dining options, and major local arterial roadways.

365 Route 25A, Mt. Sinai

$699,999

4 Beds ⋅ 2 Baths ⋅ 1062714 MLS

This 4 bedroom high ranch has been immaculately kept and has some major upgrades like heating system, cesspool/septic and roof! Gorgeous oak cabinets in kitchen and hardwood floors throughout. Stunning natural light, formal dining room and even room for an office or playroom. Natural gas heating system and central air conditioning. Move right in to this beautiful spot with oversize flat backyard. Lots of room for houseguests or extended family with lower level outside entry (when you get proper permits) and an oversized two car garage. Minutes away from Cedar Beach and the delish Savino's Hideaway restaurant. Close to supermarket, pharmacies and other shopping! Easy access to highways using CR-83. Don't sleep on the most affordable home in the Mount Sinai School District!

304 Pipe Stave Hollow Road, Mt. Sinai

$499,999

2 Beds ⋅ 1 Baths ⋅ 1056144 MLS

An incredible opportunity awaits in this magnificent two-bedroom, one-bath ranch, set toward the rear of an oversized, level lot just shy of half an acre in the Mount Sinai School District! A sweeping front lawn, landscaped planting beds, and established shrubs create a beautiful first impression, complemented by a textured stucco finish wrapping around all four sides, horizontal siding above, and a welcoming covered portico with white columns. An extended concrete driveway offers abundant parking and space for RVs, boats, and recreational equipment, while a concrete walkway leads to the front entry. The fenced yard features a double gate for convenient access. Step inside to an open floor plan showcasing freshly painted interiors, recessed lighting, custom molding, Andersen windows, updated outlets and receptacles, and beautiful wood-look tile flooring. A wood-burning stove, accented by cultured stone, creates a striking focal point. At the heart of the home, the beautifully updated chef’s kitchen features custom white cabinetry, quartz countertops, a tile backsplash, generous cabinet and counter space, and stainless steel appliances, including a KitchenAid commercial-style gas range connected to propane and a Frigidaire refrigerator. Two bedrooms and a full bathroom with a tub and shower complete the layout, while pull-down stairs provide convenient access to an attic with abundant storage space. Additional highlights include a GE washer and dryer, central air conditioning, forced-air heating, and a roof approximately eight years old. Situated on Long Island’s North Shore, this Mount Sinai property offers proximity to parks, waterfront recreation, and the area’s coastal scenery. Heritage Park is approximately one mile away, featuring a playground, sports fields, and walking trails. Cedar Beach is approximately five miles away—about a 12-minute drive, depending on traffic—with beach access, harbor views, fishing, and additional recreational opportunities. Expansive outdoor space, beautifully updated interiors, and nearby North Shore amenities make this Mount Sinai ranch an exceptional opportunity!

590 Canal Road, Mt. Sinai

$1,399,999

5 Beds ⋅ 4 Baths ⋅ 1061070 MLS

Luxury new construction to be built in 2027 at 1 Sunken Valley Drive, Mount Sinai, situated on .70 acres on a cul-de-sac. This thoughtfully designed Colonial offers approximately 3,400 square feet of living space with five bedrooms, three full bathrooms, and one half bath, plus a full basement and attached two-car garage. The proposed exterior pairs crisp white siding with stone accents, contrasting black windows, and a covered front entry for striking curb appeal. Inside, a dramatic two-story foyer welcomes you to a spacious layout featuring a formal dining room, separate den/study, and an expansive living room with fireplace opening to the kitchen. A large center island and separate pantry create an inviting setting for everyday living and entertaining. A first-floor guest bedroom with a nearby full bathroom provides flexible accommodations, while a laundry area and powder room add convenience. Upstairs, the generous primary suite features a walk-in closet and private bathroom with double vanity, soaking tub, and separate shower. Three additional bedrooms and a full hall bathroom complete the second floor. A beautifully planned home combining timeless style, spacious gathering areas, and a versatile layout. Price reflects purchase using a construction loan or cash. Renderings are illustrative; final design, finishes, and specifications are subject to builder confirmation.

1 Sunken Valley Drive, Mt. Sinai

$950,000

4 Beds ⋅ 3 Baths ⋅ 1055458 MLS

Welcome to 15 Vineyard Way, a spacious contemporary home offering a flexible layout, high ceilings and hardwood floors throughout. The main level features a large eat-in kitchen with a butler’s pantry, opening into the den with a wood-burning fireplace. A formal living room, dining room, half bathroom, mudroom/pantry and an additional bedroom—also well suited for a home office or guest space—complete the first floor. Upstairs, the expansive primary bedroom includes a large en-suite bathroom. Two additional bedrooms, another full bathroom and an open office area complete the second level. Outside, enjoy the fenced yard and in-ground pool with a liner approximately two years old. A full basement provides additional space and storage. Additional features include two-zone central air conditioning, in-ground sprinklers, an attached two-car garage and a full attic with pull-down access located in the garage. Taxes listed are without Star.

15 Vineyard Way, Mt. Sinai

$499,000

2 Beds ⋅ 2 Baths ⋅ 1054180 MLS

Welcome to this beautifully maintained Canterbury model, a spacious ranch-style end-unit condominium located in the sought-after Strathmore Terrace at Woodridge 55+ community in Mount Sinai. Offering 1,501 square feet of living space, the Canterbury is the largest model in the community and features 2 bedrooms and 2 full bathrooms. The living room features a fireplace with built-in shelving and flows into the formal dining room and spacious eat-in kitchen with stainless steel appliances. A patio door off the kitchen leads to a generous outdoor patio with a retractable awning, perfect for relaxing or entertaining. The spacious primary bedroom features a walk-in closet and an accessible en-suite bathroom. Additional highlights include central air replaced approximately one year ago, brand new hot water heater, an in-unit washer and dryer, and an oversized garage with access to an attic for additional storage. Enjoy the active, low-maintenance lifestyle this welcoming community has to offer, with amenities including a clubhouse, swimming pool, tennis courts, bocce court, shuffleboard, and a variety of social events and activities. Monthly HOA fee is $530 and includes internet and cable. Quarterly sewer fee is $147.75.

55 Standish Drive, Mt. Sinai

$899,000

4 Beds ⋅ 3 Baths ⋅ 1053741 MLS

Hillside Retreat on .82 Private Acres | New Roof, Boiler & Trex Deck Discover a distinctive 4-bedroom, 3-full-bath, approximately 3,000-square-foot hillside home set on .82 private acres at the end of a long, private driveway. Built in the 1990s and designed into the natural grade of the property, this unique multi-level residence offers architectural character, versatile living space, modern updates, and a peaceful, wooded setting. The main living level features an open-concept layout with soaring ceilings and abundant natural light. The kitchen with granite countertops flows into the dining area and living room, creating an inviting space for everyday living and entertaining. The primary bedroom features a full bath and ample closet space. An additional bedroom and full bath complete this level. The ground level offers two additional bedrooms, a den or living area, and a full bath. Thanks to the home's hillside design, this level functions as a true ground-level living space rather than a traditional basement. The flexible layout offers a variety of possibilities for a home office, guest accommodations, recreation room, gym, or media room. Notable updates include a roof approximately 4 years old, a boiler approximately 3 years old, and a new Trex deck. Additional features include granite countertops, an electric vehicle charger, a sprinkler system, a 1.5-car garage, and oversized parking. Enjoy the outdoors from the new Trex deck overlooking the wooded surroundings. The expansive backyard offers ample room to create an outdoor retreat, with possibilities for a pool, patio, gardens, play area, and outdoor entertaining space. An existing patio with a retaining wall adds to the property's outdoor potential. Conveniently located within the Mount Sinai School District and close to downtown Port Jefferson Village, with its shops, restaurants, and golf, this property combines a secluded setting with access to nearby amenities. Distinctive hillside architecture, approximately 3,000 square feet of versatile living space, significant updates, and .82 private acres make this a unique opportunity to enjoy space, privacy, and outdoor potential.

68 Chestnut Street, Mt. Sinai

$849,000

3 Beds ⋅ 3 Baths ⋅ 1054402 MLS

*Please Note: Price Reduced $151,000 To Faciliate a Quick Transaction! Contemporary, Cul de Sac, Hot tubs in and out, Panaromic decks, Excellent schools, Location is everything, Waterviews, Beach Rights, Central to all, Needs some tender loving care, As Is Purchase...True Taxes wirhout exemptoms 21925.08

22 Waters Edge Lane, Mt. Sinai

$799,999

5 Beds ⋅ 3 Baths ⋅ 1053303 MLS

Welcome to 20 Hilltop Drive! This spacious 5-bedroom, 2.5-bath home pairs a well-designed interior with a private backyard built for entertaining. Its updated kitchen has granite countertops, a large center island, stainless steel appliances, a wine fridge, and room for an eat-in dining area. Next to it is an oversized family room, and a formal living room and formal dining room are there for hosting. Upstairs, the bright primary suite comes with a primary bath and two walk-in closets. There are also four additional bedrooms, all a good size, and a full hall bath. The partial basement holds the laundry, utilities, and plenty of storage. The fully fenced backyard is private and has multiple patios for outdoor dining and entertaining. It also has a sport court with stadium lighting, set up for basketball and pickleball, day or night. A true entertainers dream!

20 Hilltop Drive, Mt. Sinai

$1,099,999

6 Beds ⋅ 5 Baths ⋅ 1045245 MLS

Public Remarks Welcome to 97 Chestnut Street, an exceptional residence in Mount Sinai that combines spaciousness, privacy, and functionality in a design tailored to the modern lifestyle. This property offers 6 bedrooms and 5 full bathrooms distributed across well-defined spaces—ideal for multi-generational living, or buyers seeking flexibility. The interiors are distinguished by high ceilings, abundant natural light, and multiple living areas that provide comfort for both daily living and evening entertaining. The open-concept kitchen features a breakfast area, excellent storage capacity, and a direct connection to the social spaces, creating a practical and welcoming atmosphere. The first floor includes a bedroom that can serve as a private suite for guests. The finished lower level adds significant value with recreational space, storage, and convenient access, further expanding the property's potential uses. The exterior offers a private, oasis-like setting on a lot of approximately 1.25 acres, featuring a swimming pool, hot tub, spacious patio, and lush green areas ideal for outdoor enjoyment. The property also includes a two-car garage and an expansive driveway that provides ample additional parking. Strategically located near renowned schools, shops, parks, and transportation, this property combines residential tranquility with convenient access to essential amenities. With the necessary permits already in place, there is potential for a "Mother & Daughter" (accessory apartment) configuration, making this an excellent option for those seeking additional living space or potential rental income. This is a unique opportunity to acquire a move-in-ready property with significant potential for future appreciation.

97 Chestnut Street, Mt. Sinai

$1,100,000

4 Beds ⋅ 3 Baths ⋅ 1036915 MLS

Completely renovated and updated 4-bedroom, 2.5-bath Colonial ideally located on a private cul-de-sac. Featuring beautiful hardwood floors, central air conditioning, and a spacious primary suite with ensuite bath. Enjoy the charm of a wrap-around porch and a private inground pool, perfect for summer entertaining and relaxation. Conveniently located close to schools, shopping, and restaurants, this move-in-ready home offers comfort, style, and privacy.

61 Shore Road Unit #B, Mt. Sinai

$765,000

4 Beds ⋅ 2 Baths ⋅ 1036668 MLS

A North shore desirable location to beach and fun. This home sits on lush grounds. The back yard is an entertainers' dream, beautiful In Ground Pool, Cabana, Trex Deck, Mature Layered Landscaping, Shed. Home features Eat In Kitchen, Wet Bar, Living Room w/ fireplace, Den with Fireplace. Primary Bedrm, plus 2 Bedrooms Full Bth. Super finished Basement. A Home for all Seasons, Cooling in the Pool for summer, Close Beach for sun and sand, 2 beautiful fireplaces for those cold days and nights.

10 George Hill Road, Mt. Sinai

Start Your Search

Listings courtesy of OneKey® MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of . 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.

The data relating to real estate for sale on this website appears in part through the SMARTMLS Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms, and is provided by SMARTMLS through a licensing agreement. Listing information is from various brokers who participate in the SMARTMLS IDX program and not all listings may be visible on the site. The property information being provided on or through the website is for the personal, non-commercial use of consumers and such information may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Some properties which appear for sale on the website may no longer be available because they are for instance, under contract, sold or are no longer being offered for sale. Property information displayed is deemed reliable but is not guaranteed. Copyright 2026 SmartMLS, Inc.

Mt. Sinai Homes for Sale

Newest Mt. Sinai Homes for Sale

How much is your home worth?

How much is your home worth?