Welcome to 365 Split Rock Road...
Set within one of the North Shore of Long Island’s most desirable enclaves, this gated estate in Syosset offers an exceptional balance of privacy, scale, and modern design. Recently constructed and thoughtfully sited on five private acres, the residence encompasses over 12,000 square feet of well-proportioned living space, creating a quiet retreat defined by quality and permanence.
The main residence is designed to accommodate both comfortable daily living and effortless entertaining. It features six bedrooms and six and a half bathrooms, including a spacious primary suite with private quarters. The home is anchored by a chef’s kitchen equipped with Wolf and Thermador appliances, generous entertaining areas, a wood-burning fireplace, and a covered outdoor living room that seamlessly extends the interior living space. Fully finished basement to further enhance flexibility and convenience.
The grounds are both functional and refined, offering a pool area with a separate cottage or guest house, tennis and basketball courts, a private pond, dog run, and a five-car garage. Mature landscaping is supported by substantial irrigation and drainage systems, ensuring the property remains well maintained throughout the seasons. Additional features include a whole-house gas generator, comprehensive security and surveillance systems, and robust infrastructure throughout the estate.
Located within the highly acclaimed Syosset Central School District—renowned for its academic excellence and consistently ranked among the top districts on Long Island—the property offers both an exceptional lifestyle and long-term value. Moments from fine dining, shopping, golf courses, country clubs, and the natural beauty of the North Shore coastline, this residence delivers a level of living rarely found in one of Long Island’s most established and prestigious locations.
New construction
Price cut: $605K (2/17)
$6,295,000
365 Split Rock Road, Syosset, NY 11791
10beds
12,800sqft
Single Family Residence, Residential
Built in 2019
4.82 Acres Lot
$-- Zestimate®
$492/sqft
$-- HOA
What's special
Pool areaFully finished basementPrivate pondTennis and basketball courtsDog runGated estateFive-car garage
- 47 days |
- 3,723 |
- 124 |
Zillow last checked: 7 hours ago
Listing updated: March 10, 2026 at 09:39am
Listing by:
Astoria Realty Brokerage Svcs 718-274-3000,
Theodosis Neocli 917-242-7756
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 956163
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 10
- Bathrooms: 11
- Full bathrooms: 9
- 1/2 bathrooms: 2
Heating
- ENERGY STAR Qualified Equipment, Forced Air, Heat Pump, Propane
Cooling
- Central Air, ENERGY STAR Qualified Equipment, Zoned
Appliances
- Included: Convection Oven, Cooktop, Dishwasher, Disposal, Electric Oven, Exhaust Fan, Gas Range, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Wine Refrigerator
- Laundry: Washer/Dryer Hookup, Multiple Locations
Features
- First Floor Bedroom, First Floor Full Bath, Built-in Features, Cathedral Ceiling(s), Central Vacuum, Chandelier, Crown Molding, Double Vanity, Eat-in Kitchen, Entrance Foyer, Formal Dining, High Speed Internet, Kitchen Island, Open Floorplan, Open Kitchen, Pantry, Quartz/Quartzite Counters, Recessed Lighting, Smart Thermostat, Sound System, Storage, Whole House Entertainment System
- Flooring: Hardwood
- Windows: New Windows
- Basement: Finished
- Attic: Full
- Number of fireplaces: 1
- Fireplace features: Family Room, Gas
Interior area
- Total structure area: 12,800
- Total interior livable area: 12,800 sqft
Video & virtual tour
Property
Parking
- Total spaces: 5
- Parking features: Attached
- Garage spaces: 5
Features
- Patio & porch: Covered
- Exterior features: Basketball Court, Dog Run, Garden, Gas Grill, Lighting, Playground, Rain Gutters, Speakers, Tennis Court(s)
- Has private pool: Yes
- Pool features: Electric Heat, Fenced, In Ground, Outdoor Pool, Pool Cover, Pool/Spa Combo, Salt Water
- Has spa: Yes
- Fencing: Fenced,Perimeter
- Waterfront features: Pond
Lot
- Size: 4.82 Acres
- Features: Back Yard, Front Yard, Landscaped, Level, Paved, Private, Sprinklers In Front, Sprinklers In Rear
Details
- Additional structures: Guest House, Kennel/Dog Run, Outdoor Kitchen, Pergola, Pool House
- Parcel number: 2489250580000980
- Special conditions: None
- Other equipment: Compressor, Dehumidifier, Generator, Intercom, Irrigation Equipment, Lawn Maintenance Equipment, Pool Equip/Cover
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Foam Insulation, HardiPlank Type
Condition
- New Construction
- New construction: Yes
- Year built: 2019
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Connected, Electricity Connected, Natural Gas Connected, Phone Connected, Propane, Underground Utilities, Water Connected
Community & HOA
HOA
- Has HOA: No
Location
- Region: Syosset
Financial & listing details
- Price per square foot: $492/sqft
- Tax assessed value: $3,302
- Annual tax amount: $53,930
- Date on market: 1/28/2026
- Cumulative days on market: 48 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
Price history
| Date | Event | Price |
|---|---|---|
| 2/17/2026 | Price change | $6,295,000-8.8%$492/sqft |
Source:  OneKey® MLS as distributed by MLS GRID #956163 Report a problem | ||
| 1/28/2026 | Listed for sale | $6,900,000-1.4%$539/sqft |
Source: OneKey® MLS as distributed by MLS GRID #956163 Report a problem | ||
| 10/1/2025 | Listing removed | $6,999,999$547/sqft |
Source: OneKey® MLS as distributed by MLS GRID #894286 Report a problem | ||
| 9/13/2025 | Price change | $6,999,999-12.5%$547/sqft |
Source: OneKey® MLS as distributed by MLS GRID #894286 Report a problem | ||
| 7/30/2025 | Listed for sale | $7,999,000+232%$625/sqft |
Source: OneKey® MLS as distributed by MLS GRID #894286 Report a problem | ||
| 12/5/2019 | Sold | $2,409,600-19.5%$188/sqft |
Source: Public Record Report a problem | ||
| 9/23/2019 | Price change | $2,995,000-7.8%$234/sqft |
Source: Marc B Underberg, REALTOR #3074429 Report a problem | ||
| 1/14/2019 | Listed for sale | $3,250,000$254/sqft |
Source: Marc B Underberg, REALTOR #3074429 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | -- | $2,324 +11.9% |
| 2023 | -- | $2,076 -4.3% |
| 2022 | -- | $2,169 |
| 2021 | $73,583 +22% | -- |
| 2020 | $60,296 +3.3% | $3,392 |
| 2019 | $58,349 | $3,392 -8.1% |
| 2018 | $58,349 +4.5% | $3,692 |
| 2017 | $55,811 | $3,692 |
Find assessor info on the county website
BuyAbility℠ payment
Estimated monthly payment
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Neighborhood: 11791
Nearby schools
GreatSchools rating
- 7/10Berry Hill Elementary SchoolGrades: K-5Distance: 1.3 mi
- 8/10South Woods Middle SchoolGrades: 6-8Distance: 1.7 mi
- 10/10Syosset Senior High SchoolGrades: 9-12Distance: 1.9 mi
Schools provided by the listing agent
- Elementary: Berry Hill Elementary School
- Middle: South Woods 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.
Local experts in 11791
- New York
- Nassau County
- Syosset
- 11791
- 365 Split Rock Road
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