- Overview
- Description
- Property Details
- Location
- Facts & Features
- Getting Around
- Nearby Homes
$1,988,000
Monthly Est:$9,895
5 Beds
- 4 Baths
4 full baths
2,700sqft
31 Underhill Ave, Oyster Bay, NY 11791
$1,988,000
$9,895/moEst:
Get Pre-Approved
Single Family Residence
Built in 2026
$-- HOA
6,800 sqft lot
$736/sq.ft
Description
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!
- Houzeo last checked: 4 minutes ago
- Listing updated: October 6, 2026 at 5:09 pm
- Listing Provided by: Debra McSheffrey Kiehn (516) 647-6749 | Signature Premier Properties (516) 921-1400
- Source: OneKey MLS-NY | MLS#: 1025506

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
-
County
City
Neighborhood
--
Year Built
2026
HOA Fees
-
Finished Area
2,700 sqft
Lot Size
6,800 sqft lot
Basement Area
- sqft
MLS Name
OneKey MLS
MLS Number
1025506
MLS Status
Active
Days on Market
84
Cumulative Days on Market
82
Open House

Continue Your Journey in App
Find your dream home, receive real-time updates, and many more!
Download App
Continue Your Journey in App
Find your dream home, receive real-time updates, and many more!
Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 5
Bathrooms: 4
Interior
Flooring
Hardwood, Tile
Heating
Natural Gas
Appliances
Dishwasher, Dryer, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer
Cooling
Central Air
Interior Features
Chefs Kitchen, Crown Molding, Double Vanity, Granite Counters, Kitchen Island, Open Floorplan, Primary Bathroom, Recessed Lighting
Sewer
Public Sewer
Construction
Year Built
Year Built: 2026
Home type
Single Family Residence
Construction Materials
Frame
Property Condition
New Construction
Architectural Style
Colonial
Utilities & Energy
Water Source
Public
Basement
Full
Parking Features
Driveway, Electric Vehicle Charging Station(s)
Laundry Features
In Basement
Utilities
Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Other Features
Patio And Porch Features
Patio
Lot Features
Back Yard, Front Yard, Level, Near School, Near Shops
Price History
| Date | Event | Price |
|---|---|---|
09/25/2026 Source: | Price Decreased | $1,988,000 -4.88% $736/sqft |
07/16/2026 Source: | Listed for Sale | $2,090,000 $774/sqft |
07/16/2026 Source: | Price Increased | $2,090,000 +161.58% $774/sqft |
11/21/2024 Source: | Sold | $799,000 $296/sqft |
Nearby Homes
Find Homes by Property Features in Oyster Bay, NY
Based on information from OneKey MLS, through Oct 08, 2026, 11:46PM. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. © 2026 OneKey® MLS. All rights reserved.
Advertising Broker: Derek Greene | The Greene Realty Group














