Date
Details
Price
Change
Source
3/16/2026
Listed
$699,000
—
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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1/22
$699,000 Sale Pending
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1/22
Property Description
Well Kept Cape in The Heart Of North Seaford! This Quaint However Spacious Home Is A Great House! Right Off The Bat This House Has Three Full Baths! Hardwood Floors Throughout and Very Well Kept! The First Floor Has A Master Suite With A Seperate Full Bath. Formal Dining Room and Extension Off The Rear. Nice Space. The Other Three Bedrooms and Bath Are On The Second Level. Full Basement and Crawl Space. Excellent Schools . Mid Block Location. Beautiful Block! Please Note This Property Is A Deeper Lot, 115 Feet in Depth. Taxes Are Being Reassessed!!Updated Boiler, Deck Off The Rear and Is Charming Cape! Make This House Your New Home!
Full Property Details
Full Property Details for 3978 William St
General
- Price: $699,000
- Taxes: $17,000
- Status: Pending
- Type: Single Family
- Source: Long_Island
- MLS ID: 972439
- Updated: 4/28/2026
- Added to Site: 70 day(s) ago
Interior
- Number of Rooms: 8
- Interior Features: First Floor Bedroom, First Floor Full Bath
- Fireplace: Yes
- Appliances: Dishwasher, Dryer, Gas Range, Refrigerator, Washer
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 2
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 4
Parking
- Parking Features: Driveway
Location
- County: Nassau County
- Cross Streets: Washington
- Driving Directions: Washington Ave to William St
School Information
- High School District: Seaford
- Elementary School: Seaford Manor School
- Middle School: Seaford Middle School
- High School: Seaford Senior High School
Heating & Cooling
- Cooling Type: Wall/Window Unit(s)
- Heating Type: Natural Gas
Utilities
- Sewer: Public Sewer
- Water: Public
- Utility Description: Electricity Connected
Structural Information
- Architectural Style: Expanded Cape
- Detached/Attached: Detached
- Construction: Vinyl Siding
- Basement: Yes
- Basement Desc.: Full Basement
- Building Size: 1511
- Square Feet: 1,511
- Sq. Ft. Source: Other
- Year Built: 1935
Lot Features
- Lot Size (Acres): 0.0654
- Lot Size (Sq. Ft.): 5,750
- Lot Dimensions: 50 x 115
Financial Considerations
- Tax Amount: $17,000
Disclosures and Reports
- Special Conditions: None
- Property ID: 2089-52-151-00-0066-0
Listed by Universal Realty LI
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Listing agent
— 3978 William St —
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516-781-8887
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Schools
Schools serving 3978 William St
School District:Seaford Union Free School District
| Name | Grades | Distance |
|---|---|---|
Seaford Manor School 1590 Washington Avenue, Seaford, NY 11783 | K-5 | 0.2 mi |
Seaford Middle School 3940 Sunset Avenue, Seaford, NY 11783 | 6-8 | 0.2 mi |
Seaford Senior High School 1575 Seamans Neck Road, Seaford, NY 11783 | 9-12 | 0.5 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 3978 William St
Tax History
Tax History for 3978 William St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$7,448
99%
$595
—
2024
$3,750
-43%
$595
—
2023
$6,581
3%
$595
—
2022
$6,393
7%
$595
2%
2021
$5,949
11%
$584
-26%
2020
$5,352
14%
$784
3%
2018
$4,686
—
$760
—
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 3978 William St
3978 William Street, Seaford, NY 11783 (MLS# 972439) is a Single Family property with 4 bedrooms, 2 full bathrooms and 1 partial bathroom. 3978 William Street is currently listed for $699,000 and was received on March 16, 2026. Want to learn more about 3978 William Street? Do you have questions about finding other Single Family real estate for sale in Seaford? You can browse all Seaford real estate or contact a Coldwell Banker agent to request more information.