Date
Details
Price
Change
Source
9/28/2026
Listed
$2,649,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$2,649,000
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Property Description
Upon entering through the iron gates into the verdant walled garden of 40 Prospect Avenue, one witnesses a stately colonial sitting atop over 17,000 square feet of property with panoramic views of Hempstead Harbor and incredible sunsets. Once inside, you are drawn to the living room with its built-in bookshelves, wood burning fireplace and picture windows overlooking the water and a large backyard with steps leading down towards the beach. The eat-in kitchen has large windows overlooking the boats bobbing in the harbor. The first floor also features a dining room with a fireplace and a full bath. Upstairs, the primary bedroom extends across the back of the house with two closets and great views. There are three other bedrooms on the second floor and a full bath. A stairway leads to the attic with high ceilings offering endless possibilities for use as a gym or great room. The lower level has a den with a wood burning fireplace, a full bath, built-in bookshelves, doors out to the patio and, best of all, expansive views of Hempstead Harbor clear across to the shores of Westchester County. An opportunity like this in Sea Cliff is rare. Seize it while you can!
Full Property Details
Full Property Details for 40 Prospect Ave
General
- Price: $2,649,000
- Taxes: $29,657
- Status: Active
- Type: Single Family
- Source: Long_Island
- MLS ID: 1049376
- Updated: 9/28/2026
- Added to Site: 14 day(s) ago
Interior
- Number of Rooms: 9
- Interior Features: First Floor Full Bath, Built-in Features, Eat-in Kitchen, Formal Dining, Natural Woodwork, Original Details
- Fireplace: Yes
- Number of Fireplaces: 2
- Fireplace(s): Basement, Living Room
- Appliances: Gas Range, Refrigerator, Gas Water Heater
- Flooring: Hardwood
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 3
Bedrooms
- Total Bedrooms: 4
Additional Information
- Security/Safety: Security System
Exterior
- Exterior Features: Garden
- Porch/Patio/Deck: Patio, Porch
Parking
- Garage: Yes
- Garage Spaces: 2
- Parking Features: Driveway, Garage
Location
- County: Nassau County
- Cross Streets: Winding Way
- Driving Directions: G.P.S
School Information
- High School District: North Shore
- Elementary School: Sea Cliff Elementary School
- Middle School: North Shore Middle School
- High School: North Shore Senior High School
Heating & Cooling
- Central air: Yes
- Cooling Type: Central Air, Wall/Window Unit(s)
- Heating Type: Forced Air
- Heating Zones: 2
Utilities
- Sewer: Cesspool
- Water: Public
- Utility Description: Electricity Connected, Natural Gas Connected
Structural Information
- Architectural Style: Colonial
- Detached/Attached: Detached
- Construction: Block, Frame
- Basement: Yes
- Basement Desc.: Full Basement, Partially Finished, Walk-Out Access
- Windows: Oversized Windows
- Building Size: 2873
- Square Feet: 2,873
- Sq. Ft. Source: Plans
- Year Built: 1910
Additional Structures
- Other Structures: Garage(s)
Lot Features
- Property View: Water
- Lot Size (Acres): 0.399
- Lot Size (Sq. Ft.): 17,398
- Lot Dimensions: 76 x 233
- Fence: Yes
- Lot Features: Back Yard, Front Yard, Views
- Fencing (Description): Partial
Water Features
- Water View: Yes
Financial Considerations
- Taxes Include: Trash
- Tax Amount: $29,657
Disclosures and Reports
- Special Conditions: None
- Property ID: 2423-21-200-00-0002-0
- Block: 200
- Lot Number: 2
Listed by Douglas Elliman Real Estate
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Listing agent
— 40 Prospect Ave —
Douglas Elliman Real Estate
516-759-0400
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 40 Prospect Ave
School District:North Shore Central School District
| Name | Grades | Distance |
|---|---|---|
Sea Cliff Elementary School 280 Carpenter Avenue, Sea Cliff, NY 11579 | K-5 | 0.5 mi |
North Shore Senior High School 450 Glen Cove Avenue, Glen Head, NY 11545 | 9-12 | 1.2 mi |
North Shore Middle School 505 Glen Cove Ave, Glen Head, NY 11545 | 6-8 | 1.3 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 40 Prospect Ave
Tax History
Tax History for 40 Prospect Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$22,271
—
$1,123
1%
2025
$22,271
440%
$1,116
1%
2024
$4,127
-76%
$1,106
-4%
2023
$17,304
25%
$1,158
—
2022
$13,838
35%
$1,158
—
2021
$10,264
-33%
$1,158
-19%
2020
$15,214
6%
$1,425
—
2018
$14,340
9%
$1,425
—
2016
$13,179
-13%
$1,425
—
2019
$15,214
27%
$1,425
—
2016
$11,983
10%
$1,425
-14%
2014
$10,926
—
$1,650
-19%
2014
$10,926
—
$2,036
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 40 Prospect Ave
40 Prospect Avenue, Sea Cliff, NY 11579 (MLS# 1049376) is a Single Family property with 4 bedrooms and 3 full bathrooms. 40 Prospect Avenue is currently listed for $2,649,000 and was received on September 28, 2026. Want to learn more about 40 Prospect Avenue? Do you have questions about finding other Single Family real estate for sale in Sea Cliff? You can browse all Sea Cliff real estate or contact a Coldwell Banker agent to request more information.