Single Family
31 Underhill Avenue
Active · Oyster Bay · Nassau County, NY 11791
- Bedrooms
- 5 Beds
- Bathrooms
- 4 Baths
- Year built
- 2026
- Est. monthly taxes
- $0
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About this home
New luxury construction in Syosset. Experience exceptional craftsmanship and modern luxury in this stunning new construction home, thoughtfully designed with today’s lifestyle in mind. Offering five spacious bedrooms and four full bathrooms. This home seamlessly blends elegant finishes with functional living space. The main level features a desirable first floor bedroom and full bath, ideal for guests, extended family, or private home office. The heart of the home is a chef inspired gourmet kitchen beautifully appointed with top-of-the-line appliances, custom cabinetry, designer lighting and an open layout perfect for entertaining. The sun filled living and dining area flow effortlessly together with convenient access to the attached garage Upstairs retreat to the luxurious primary suite featuring a spacious walk-in closet and a spa like bath, complete with a soaking tub, oversized walk-in shower and premium finishes. A junior en-suite offers its own private full bath with a walk-in shower while two additional generously sized bedrooms share a beautiful appointed full bath. A conveniently located second floor laundry room completes the upper level. Every detail has been carefully selected from the designer lighting and elegant fixtures to the high-quality craftsmanship found throughout. Simply unpack, add your personal style and enjoy effortless luxury. Perfectly situated within the Syosset school district this exceptional home is just minutes from major highways, the Syosset library, parks, shopping, dining and everything the community has to offer. A rare opportunity to own a brand new luxury home in one of Long Island’s most sought after neighborhoods. This is truly one you don’t want to miss!
Listing snapshot
- Days on site
- 59 days
- Listed on MLS
- Jul 16, 2026
- Full baths
- 4
- Half baths
- 0
- Annual property tax (MLS)
- $0
- Tax year
- 2026
- Area source (MLS)
- Plans
- Listing brokerage
- Signature Premier Properties
- MLS ID
- KEY1025506
- Last updated
- Oct 25, 2026
General features
- Property type
- Single Family
- Property subtype
- Single Family Residence
- Year built
- 2026
- Garage
- Yes
- Garage spaces
- 1
- Parking
- Driveway, Electric Vehicle Charging Station(s)
- Water source
- Public
- Sewer
- Public Sewer
- Utilities
- Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Interior features
- Basement
- Full
- Heating
- Natural Gas
- Cooling
- Central Air
- Interior
- Chefs Kitchen, Crown Molding, Double Vanity, Granite Counters, Kitchen Island, Open Floorplan, Primary Bathroom, Recessed Lighting
- Appliances
- Dishwasher, Dryer, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer
- Flooring
- Hardwood, Tile
- Fireplace
- No
Exterior features
- Architectural style
- Colonial
- Construction materials
- Frame
- Private pool
- No
Schools (MLS)
- Elementary school
- Willits Elementary School
- Elementary school district
- Syosset
- Middle school
- H B Thompson Middle School
- Middle school district
- Syosset
- High school
- Syosset Senior High School
- High school district
- Syosset
School information is provided by the MLS. Confirm attendance eligibility with the school district.
Recent activity
- Listing updated from MLS
- Price changed to $1,988,000
- First seen on this site
- MLS status changed
Location
Estimate monthly payment
Estimated monthly principal & interest—
Monthly property taxNot provided
Monthly association / maintenance feesNot provided
Estimated monthly total of entered costs—
Listing data is supplied by the MLS and may change without notice.
