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!
New construction
Price cut: $102K (9/25)
$1,988,000
31 Underhill Avenue, Syosset, NY 11791
5beds
2,700sqft
Single Family Residence, Residential
Built in 2026
6,800 Square Feet Lot
$-- Zestimate®
$736/sqft
$-- HOA
What's special
Top-of-the-line appliancesGenerously sized bedroomsFive spacious bedroomsSpacious walk-in closetDesigner lightingSpa like bathLuxurious primary suite
- 86 days
- 1,743
- 78
Zillow last checked:
Listing updated:
Listed by:
Signature Premier Properties 516-921-1400,
Debra McSheffrey Kiehn 516-647-6749
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 1025506
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 4
- Full bathrooms: 4
Heating
- Natural Gas
Cooling
- Central Air
Appliances
- Included: Dishwasher, Dryer, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer
- Laundry: In Basement
Features
- Chefs Kitchen, Crown Molding, Double Vanity, Granite Counters, Kitchen Island, Open Floorplan, Primary Bathroom, Recessed Lighting
- Flooring: Hardwood, Tile
- Basement: Full
- Attic: Partial
- Has fireplace: No
Interior area
- Total structure area: 2,700
- Total interior livable area: 2,700 sqft
Video & virtual tour
Property
Parking
- Total spaces: 1
- Parking features: Driveway, Electric Vehicle Charging Station(s)
- Garage spaces: 1
- Has uncovered spaces: Yes
Features
- Patio & porch: Patio
- Fencing: Fenced
Lot
- Size: 6,800 Square Feet
- Dimensions: 77 x 101
- Features: Back Yard, Front Yard, Level, Near School, Near Shops
Details
- Parcel number: 2489150810000030
- Special conditions: None
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Frame
Condition
- New Construction
- New construction: Yes
- Year built: 2026
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Community & HOA
HOA
- Has HOA: No
Location
- Region: Syosset
Financial & listing details
- Price per square foot: $736/sqft
- Tax assessed value: $476,000
- Date on market: 7/16/2026
- Cumulative days on market: 86 days
- Listing agreement: Exclusive Right To Sell
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 9/25/2026 | Price change | $1,988,000-4.9%$736/sqft |
Source: | ||
| 7/16/2026 | Listed for sale | $2,090,000+161.6%$774/sqft |
Source: | ||
| 9/5/2024 | Sold | $799,000$296/sqft |
Source: | ||
| 7/18/2024 | Pending sale | $799,000$296/sqft |
Source: | ||
| 7/3/2024 | Listed for sale | $799,000$296/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | -- | $476 -4.8% |
| 2023 | -- | $500 |
| 2022 | -- | $500 |
| 2021 | $7,102 +26.2% | -- |
| 2020 | $5,629 -1.9% | $477 -6.7% |
| 2019 | $5,741 | $511 -6.2% |
| 2018 | $5,741 -0.6% | $545 -5.9% |
| 2017 | $5,773 -1.6% | $579 -5.5% |
| 2016 | $5,869 +299.6% | $613 -5.3% |
| 2015 | $1,469 +2.9% | $647 -5% |
| 2013 | $1,427 -10.5% | $681 -18.1% |
| 2012 | $1,595 -73.5% | $832 -12% |
| 2011 | $6,022 -4.8% | $945 -8.3% |
| 2010 | $6,328 | $1,030 -15.9% |
| 2009 | -- | $1,225 -7.3% |
| 2008 | -- | $1,322 +5.9% |
| 2006 | -- | $1,248 -33.4% |
| 2005 | -- | $1,873 -39.4% |
| 2004 | -- | $3,093 |
| 2003 | -- | $3,093 -52.4% |
| 2002 | -- | $6,500 -3.7% |
| 2001 | -- | $6,750 |
| 2000 | -- | $6,750 |
Find assessor info on the county website
Monthly payment
Climate risks
Neighborhood: Locust Grove
Nearby schools
Schools provided by the listing agent
- Elementary: Willits Elementary School
- Middle: H B Thompson Middle School
- High: Syosset Senior High School
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.





