Islip NY FSBO Homes (844)

Sort By

List
Map

We have 844 homes for sale by owner in Islip, NY. The median list price in Islip, NY is $127,612.

Homes For Sale

$639,000

3 Bed
3 Bath
1,000 Sqft

18 Marvin Road, Islip, NY

Welcome to this charming 3-bedroom, 3 bathroom ranch perfectly located and near all major highways, the lirr,... Read More

Homes For Sale

$599,000

4 Bed
2 Bath
2,400 Sqft
0.32 Acre(Lot)

63 Udall Road, Islip, NY

This vintage 1906 colonial farmhouse boasts a welcoming entrance foyer, which flows into an open, spacious... Read More

Homes For Sale

$550,000

5 Bed
3 Bath
1,463 Sqft
0.25 Acre(Lot)

624 Peter Paul Drive, Islip, NY

Bring your imagination to help make this home your very own. 5 level split style home with 4/5 bedrooms, 3 full... Read More

Condo For Sale

$625,000

2 Bed
2 Bath
1,589 Sqft
0.01 Acre(Lot)

6 Park Drive, Islip, NY

Golden opportunity to own this stunning 5 year "new" 2b/2b townhouse in the highly desirable 55 and better... Read More

Homes For Sale

$835,750

3 Bed
3 Bath
0.67 Acre(Lot)

91 S Penataquit Avenue, Islip, NY

In times of uncertainty why not buy yourself any certainty? this will never change. location is the best.... Read More

Homes For Sale

$599,000

3 Bed
2 Bath
1,400 Sqft
0.45 Acre(Lot)

20 Crestwood Road, Islip, NY

Welcome to 20 crestwood road! impeccably maintained by the owners of over 60 years and available for the first... Read More

Homes For Sale

$699,999

4 Bed
3 Bath
2,315 Sqft
0.34 Acre(Lot)

1591 Louis Kossuth Avenue, Islip, NY

Looking for a home in bohemia to make your own? check out this colonial on louis kossuth, this home sits mid... Read More

Homes For Sale

$500,000

4 Bed
2 Bath
1,099 Sqft
0.68 Acre(Lot)

1068 Connetquot Avenue, Islip, NY

Fixer-upper opportunity! perfect for a 203k or renovation loan! this 4-bedroom, 2-bath ranch in central islip... Read More

Homes For Sale

$550,000

3 Bed
2 Bath
1,659 Sqft
0.26 Acre(Lot)

1410 Union Boulevard, Islip, NY

Built in 1925, this beautifully maintained 3 bedroom 2 full bath ranch home located in the heart of bay shore... Read More

Homes For Sale

$599,999

4 Bed
2 Bath
1,666 Sqft

1026 Commack Road, Islip, NY

Welcome to south brentwood. this charming 4 bedroom, 2 bath high-ranch is perfectly located near the southern... Read More

Homes For Sale

$625,000

3 Bed
2 Bath
3,000 Sqft
0.25 Acre(Lot)

1069 Reilly Street, Islip, NY

Welcome to this charming 3-bedroom, 2-bathroom ranch-style home situated on a spacious quarter-acre lot in bay... Read More

Homes For Sale

$699,000

3 Bed
3 Bath
2,197 Sqft
0.25 Acre(Lot)

532 Bellmore Street, Islip, NY

Welcome to this completely renovated open layout 3 br 3 bath ranch with room for extended family. new features... Read More

Homes For Sale

$939,000

5 Bed
3 Bath
3,737 Sqft
0.48 Acre(Lot)

378 Ridgefield Road, Islip, NY

This stunning 5-bedroom, 3-bathroom farmhouse is a true standout, offering 3,700 sq ft of beautifully renovated... Read More

Condo For Sale

$675,000

2 Bed
3 Bath
1,950 Sqft
0.04 Acre(Lot)

25 Durham Lane, Islip, NY

Beautiful and rarely available end unit in the highly sought-after lakeview woods community. this spacious... Read More

Homes For Sale

$499,000

3 Bed
1 Bath
1,200 Sqft
0.11 Acre(Lot)

187 Islip Boulevard, Islip, NY

Don't miss this opportunity within east islip school district !!! this adorable 3 bedroom 1 bath home also has a... Read More

Homes For Sale

$729,722

3 Bed
2 Bath
1,853 Sqft
0.25 Acre(Lot)

7 Loop Drive, Islip, NY

Immaculate "l" shaped ranch in move in condition. countless updates in the open and airy floor plan.

Homes For Sale

$649,990

4 Bed
2 Bath
1,602 Sqft

40 Church Street, Islip, NY

Welcome to this charming hi-ranch home offering versatility and space for comfortable living. the first floor... Read More

Homes For Sale

$425,000

2 Bed
1 Bath
1,122 Sqft
0.2 Acre(Lot)

652 Durham Road, Islip, NY

Charming 2-bedroom, 1-bath home in the heart of sayville! this 1,121 sq. ft. home sits on a 0.2-acre lot and... Read More

Homes For Sale

$749,000

4 Bed
3 Bath
1,725 Sqft
0.46 Acre(Lot)

354 Lincoln Avenue, Islip, NY

Welcome to this beautifully updated 4-bedroom, 3-bathroom colonial nestled in the heart of sayville! located... Read More

Pending

Homes For Sale

$649,900

3 Bed
2 Bath
1,300 Sqft
0.17 Acre(Lot)

10 Hale Street, Islip, NY

Totally remodel home!

First
1
2
3
4
5
6
7
8
9
10
Last

Islip - Statistics and Home Trends

Actives Activity Chart

Homes For Sale By Owner in Islip 726

	Average Price
1 Bed Homes For Sale in Islip (2)	$ 90,000
2 Bed Homes For Sale in Islip (58)	$ 389,251
3 Bed Homes For Sale in Islip (255)	$ 629,626
4 Bed Homes For Sale in Islip (248)	$ 856,023
5+ Bed Homes For Sale in Islip (145)	$ 1,500,782

AVERAGE PRICE

$ 693,136

NEW LISTINGS THIS WEEK

712

PRICE PER SQUARE FOOT

$ 462

Condos For Sale By Owner in Islip 92

	Average Price
1 Bed Condos For Sale in Islip (6)	$ 292,000
2 Bed Condos For Sale in Islip (61)	$ 567,665
3 Bed Condos For Sale in Islip (17)	$ 628,999
4 Bed Condos For Sale in Islip (8)	$ 879,625

AVERAGE PRICE

$ 648,219

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

$ 436

Townhomes For Sale By Owner in Islip 3

	Average Price
2 Bed Townhomes For Sale in Islip (1)	$ 499,999
3 Bed Townhomes For Sale in Islip (2)	$ 514,450

AVERAGE PRICE

$ 622,584

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

$ 445

Land For Sale By Owner in Islip 18

	Average Price
Land For Sale in Islip (18)	$ 650,743

AVERAGE PRICE

$ 650,743

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

$ N/A

Statistics Bottom Ads 1

Learn More About Islip, New York

Currently there are 726 homes for sale, 92 condos and apartments for sale, 18 vacant land for sale and 3 townhomes for sale in Islip

Currently Islip has 839 properties on the market for sale. The inventory was last updated 03/25/2025. Of these properties, 726 single family homes are for sale by their owners in Islip, and 92 condos are for sale by their owners in Islip. The average price of the single family homes for sale in Islip, is $693,136, the average condo price in Islip, is $648,219. The average price per square foot of the active inventory is $336. This is based the living area square footage.

Over the last year, there have been 0 of properties sold in Islip. Of these properties, 0 single family homes have sold by their owners in Islip, and 0 condos have sold by their owners in Islip. The average sales price of the single family homes sold in Islip, is $. Single family homes have been selling for per square foot of living area. The average sales price of the condos for sale in Islip, is $. Condos have been selling for per square foot of living area.

The most active subdivisions with listings for sale in Islip, are:

If you are thinking of selling your Islip home, try our flat fee listing service, Our list fees start at $449, and may save you $15,000 in real estate commissions. Click here to start saving.

Disclaimer: Listing broker has attempted to offer accurate data, but buyers/lessees are advised to confirm all information IDX information is provided exclusively for consumers' personal, non-commercial use that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that data is deemed reliable but is not guaranteed accurate by the MLS. The MLS may, at its discretion, require use of other disclaimers as necessary to protect Participants and/or the MLS from liability.
This data up-to-date as of 03/25/2025

Islip NY FSBO Homes (844)

18 Marvin Road, Islip, NY

63 Udall Road, Islip, NY

624 Peter Paul Drive, Islip, NY

6 Park Drive, Islip, NY

91 S Penataquit Avenue, Islip, NY

20 Crestwood Road, Islip, NY

1591 Louis Kossuth Avenue, Islip, NY

1068 Connetquot Avenue, Islip, NY

1410 Union Boulevard, Islip, NY

1026 Commack Road, Islip, NY

1069 Reilly Street, Islip, NY

532 Bellmore Street, Islip, NY

378 Ridgefield Road, Islip, NY

25 Durham Lane, Islip, NY

187 Islip Boulevard, Islip, NY

7 Loop Drive, Islip, NY

40 Church Street, Islip, NY

652 Durham Road, Islip, NY

354 Lincoln Avenue, Islip, NY

10 Hale Street, Islip, NY

Nearby Cities

Popular Cities

Nearby Counties

Property Types

Islip - Statistics and Home Trends

Actives Activity Chart

AVERAGE PRICE

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

AVERAGE PRICE

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

AVERAGE PRICE

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

AVERAGE PRICE

NEW LISTINGS THIS WEEK

PRICE PER SQUARE FOOT

Statistics Bottom Ads 1

Learn More About Islip, New York

For Sale By Owner New York

Statistics Bottom Ads 2

For Sale By Owner Idaho

Statistics Bottom Ads 3

For Sale By Owner Georgia

Statistics Bottom Ads 4

YouTube Video