21 Innis Avenue Ronkonkoma, NY $ 649,900
21 Innis Avenue
$ 649,900
Recently Listed
Open House 1/24 11am - 12:30pm
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21 Innis Avenue

Ronkonkoma, NY, 11779
$ 649,900
Bedrooms4 Baths3.0 Sq 1,622

Monthly Estimate*

$ 4,002

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Single Family Home for sale in Ronkonkoma, NY

for $649,900 with 4 bedrooms and 3 full baths. This 1,622 square foot home was built in 1944 on a lot size of 0.14.

Don’t miss the opportunity to own this move-in-ready four-bedroom colonial located in the heart of Ronkonkoma. Enter inside to discover a bright and spacious living room and dining room, perfect for everyday living and entertaining. The sun-drenched kitchen features quartz countertops and stainless steel appliances, while the main level also offers a versatile office/bedroom and an additional generously sized bedroom. Upstairs, three well-appointed bedrooms provide comfortable living space for all. Enjoy the convenience of a full bathroom on each level, plus a fully finished basement offering exceptional bonus space for recreation or relaxing with loved ones. Conveniently located nearby the Long Island Railroad, Ronkonkoma Hub, Long Island Expressway, shopping, and more... this home checks every box!

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Open House

1/24/2026 11:00 AM - 12:30 PM
21 Innis Avenue Ronkonkoma, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 649,900

Bedrooms

4

Full Bath

3

Property Type

Single Family

Taxes

$ 9,964

Style

Colonial

Lot Size

0.14

Year Built

1944

Town/City

Ronkonkoma

County/Region

Suffolk

MLS | Web ID

954005

Features
Interior
Interior Amenities First Floor Bedroom First Floor Full Bath Eat-in Kitchen Quartz/Quartzite Counters
Basement Finished
Basement Features Finished
Basement (Y/N) Y
Half Baths 0
Total Bedrooms 4
Total Baths 3
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General
Sewer Cesspool
Heating Oil
Cooling None
Utilities See Remarks
Appliances Stainless Steel Appliance(s)
Architectural Style Colonial
Construction Materials Frame
Year Built 1944
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 0200-724-00-03-00-041-000
County Suffolk County
Property Type Residential
HOA N
Garage Y/N N
Total Rooms 7
Full Baths 3
High School Sachem High School North
City Brookhaven
Senior Community Y/N N
High School District Sachem
Carport Y/N N
Elementary School Hiawatha School
Property Attached Y/N N
Tax Annual Amount 9964.61
Showing Instructions Showings begin at Open House.
Middle/Junior High School Samoset Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Sachem
Elementary School District Sachem
Tax Assessed Value 2500
Virtual Tour https://vimeo.com/1156936960?share=copy&fl=sv&fe=ci
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Exterior
Parking Features Driveway Driveway
Water Source Public
Waterfront Y/N N
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Internal Only
Street Number 1 21
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* Excluded Features
List By
Nicholas J. Sekela

Listing Agent

Oasis Realty Group Llc

Broker

631-803-6000

Contact

Affordability Calculator

$4,832
Per Month
83%
17%
0%
Monthly Principal & Interest
$4,002
Monthly Property Taxes
$830
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4100851 Elementary School
4100060 Middle School
Sachem High School North High School
Pricing History
DatePricePrice ChangeDescription
1/21/2026$649,900 Listed Price

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21 Innis Avenue, Ronkonkoma, NY, 11779 is a Single Family Home for sale at $649,900 with 1,622 sqft and a lot size of 0.14. 21 Innis Avenue has 4 bedrooms, 3.0 baths, and was built in 1944. The property's zip code is 11779 which is in Ronkonkoma, NY