21 Walnut Ave, Stony Brook, NY 11790
What This House Offers
Discover the perfect blend of comfort and convenience in this newly renovated 5-bedroom,3-bath apartment located in the heart of Stony Brook. Just minutes from Stony Brook University,Stony Brook Hospital,and public transportation,The modern design features fresh finishes and updated appliances,creating a welcoming and stylish living space with family room and dining room. Plus,the landlord covers landscaping,so you can enjoy a beautifully maintained yard without lifting a finger. MLS ID KEY1025436
Unit
Home Features
- Air Conditioning
- Smoke Free
21 Walnut Ave is a single-family home for rent in Stony Brook, NY
Fees & Policies
The fees below are based on community-supplied data and may exclude additional fees and utilities.
One-Time Basics
Due at Move-In
-
Security Deposit - Refundable$4,975
Property Fee Disclaimer: Based on community-supplied data and independent market research. Subject to change without notice. May exclude fees for mandatory or optional services and usage-based utilities.
Home Details
Home Design
- Built in 1975
- Cape Cod Architecture
- Single Family Detached Home
- Frame Construction
- Entry on the 1st floor
Interior Spaces
- Formal Dining Room
- Entrance Foyer
- 1788 Sq Ft Home
Kitchen
- Eat-In Kitchen
- Microwave
- Dishwasher
Bedrooms and Bathrooms
- Primary Bedroom on Main
- 3 Full Bathrooms
- 5 Bedrooms
- 5 Bedrooms | 3 Bathrooms
Laundry
- Washer
Basement
- Basement Storage
Parking
- Private Parking
- Driveway
Lot Details
- 4792 Sq Ft Lot
Schools
- Minnesauke Elementary School
- Paul J Gelinas Junior High School
- Ward Melville Senior High School
Utilities
- Central Air
- Baseboard Heating
- Water Heater
- Electricity Available
- Ductless Heating Or Cooling System
- Heating System Uses Oil
- Cesspool
Listing and Financial Details
- 12-Month Minimum Lease Term
- Assessor Parcel Number 0200-198-00-01-00-006-000
Community Details
Pet Policy
- Call for details about the types of pets allowed
Explore Commute Options
What's nearby 21 Walnut Ave
Get In Touch
Stony Brook, NY 11790
Information Copyright 2026, OneKey® MLS. All Rights Reserved. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey® MLS.
Area Scores
Walkability
Fairly walkable
Transit
Some public transit
Driveability
Moderately drivable
Bikeability
Moderately bikeable
Walkability measures the walking distance to day-to-day needs.
Transit measures access to public transportation.
Driveability measures congestion, parking availability, and access to major roads.
Bikeability measures the suitability for cycling.
Soundscore™
Active
A Sound Score rating aggregates noise caused by vehicle traffic, airplane traffic and local sources.
Travel and Transit
Commuter Rail
9 min Drive
Commuter Rail
8 min Drive
Airport
27 min Drive
Airport
122 min Drive
Local Education
Primary and Secondary Schools
Minnesauke Elementary School
Grades PK-5
Public
Paul J Gelinas Junior High School
Grades 6-8
Public
Ward Melville Senior High School
Grades 9-12
Public
The Stony Brook School
Grades 6-12
Private
International Christian School
Grades PK-12
Private
Data provided by GreatSchools.org © 2026. All rights reserved.
Colleges and Universities
| School | Commute Time (Distance) |
|---|---|
| Stony Brook University | Drive: 7 min (3 mi) |
| SUNY Suffolk Co., Ammerman | Drive: 17 min (9.2 mi) |
| SUNY Suffolk Co., Grant Campus | Drive: 27 min (13.4 mi) |
| Touro University | Drive: 27 min (13.7 mi) |
Discover Stony Brook, Stony Brook, NY
Shopping Centers
Shoppers will appreciate 21 Walnut Ave proximity to Stony Brook Square, Stony Brook Village Shopping Center, and Three Village Plaza. Stony Brook Square is 0.6 miles away, and Stony Brook Village Shopping Center is within a 15 minute walk.
Commuting
With a TransitScore of 50, 21 Walnut Ave has some public transit, including 5 transit stops within 10.2 miles. Transit options include Stony Brook and St. James.
Airports
Living in Stony Brook provides easy access to Long Island MacArthur, located just 28 minutes from 21 Walnut Ave. Another nearby airport is Tweed/New Haven, located 44.4 miles away.
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