Date
Details
Price
Change
Source
7/14/2026
Listed
$4,350
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
No photo available
$4,350 -$650 (-13%) Price Reduced
Property Description
Charming 4-bedroom, 2-bath Cape in the highly desirable Three Village School District. Features a spacious layout, private backyard, and convenient location near Stony Brook University, shopping, restaurants, parks, the LIRR, and major highways
Full Property Details
Full Property Details for 21 Walnut Ave
General
- Rent: $4,350
- Status: Active
- Type: Single Family
- Source: Long_Island
- MLS ID: 1025436
- Updated: 7/14/2026
- Added to Site: 1 day(s) ago
Interior
- Number of Rooms: 7
- Interior Features: Eat-in Kitchen, Entrance Foyer, Formal Dining, Master Downstairs
- Appliances: Dishwasher, Microwave, Refrigerator, Washer, Indirect Water Heater
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 4
Parking
- Parking Features: Driveway, Private
Location
- County: Suffolk County
School Information
- High School District: Three Village
- Elementary School: Minnesauke Elementary School
- Middle School: Paul J Gelinas Junior High School
- High School: Ward Melville Senior High School
Community
- Pets Allowed: Yes
- Pet Restrictions: Call
Heating & Cooling
- Central air: Yes
- Cooling Type: Central Air, Ductless
- Heating Type: Baseboard, Oil
Utilities
- Sewer: Cesspool
- Water: Other
- Utility Description: Electricity Available
Structural Information
- Architectural Style: Cape Cod
- Detached/Attached: Detached
- Construction: Frame
- Basement: Yes
- Basement Desc.: Storage Space
- Entry Floor Number: 1
- Sq. Ft. Source: Other
- Year Built: 1975
Lot Features
- Lot Size (Acres): 0.11
- Lot Size (Sq. Ft.): 4,792
Financial Considerations
- Security Deposit: $4,350
Disclosures and Reports
- Special Conditions: None
- Property ID: 0200-198-00-01-00-006-000
Listed by EMLAK Realty LLC
Schools
Schools serving 21 Walnut Ave
School District:Three Village Central School District
| Name | Grades | Distance |
|---|---|---|
Minnesauke Elementary School 21 Highgate Dr, Setauket- East Setauket, NY 11733 | K-6 | 1.6 mi |
Paul J Gelinas Junior High School 25 Mud Rd, Setauket- East Setauket, NY 11733 | 7-9 | 1.4 mi |
Ward Melville Senior High School 380 Old Town Rd, Setauket- East Setauket, NY 11733 | 9-12 | 3.2 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price History for 21 Walnut Ave
21 Walnut Avenue, Stony Brook, NY 11790 (MLS# 1025436) is a Single Family property with 4 bedrooms and 2 full bathrooms. 21 Walnut Avenue is currently listed for rent at $4,350 and was received on July 14, 2026. Want to learn more about 21 Walnut Avenue? Do you have questions about finding other real estate for sale or rent in Stony Brook? You can browse all Stony Brook rentals or contact a Coldwell Banker agent to request more information.