Safety & registry resources

Review official public-safety information for any area from these government sources:

U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
FBI: state sex-offender registry directory

Buy

Start here

Homes for sale by state
Home buying tips
Before you start looking
The buying timeline

Afford it

Today's mortgage rates
Mortgage calculator
How much can I afford?
Get pre-approved

Make the deal

Writing a winning offer
Inspections & appraisals
Closing costs, itemized
Find a buyer's agent

Save search Advertise Sign In

Saved homes Saved searches Your tours Your inquiries Recently viewed Account settings

Rentals
Commercial

78 listings

Sell

Selling Options

What's my home worth?
Compare selling options
Get an instant cash offer
Buy before you sell

Resources

How selling works
When should I sell?
Home selling tips
Pricing your home
What's worth fixing first
Find a seller's agent

Home Loans

Find an Agent

Save search

Luxury Homes in Islip, NY

Hide Map

24 of 78 Listings

Map

24 of 78 Listings

43Active

Luxury Homes in Islip, NY — Page 2

78 listings

Luxury Homes in Islip, NY

Hide Map

24 of 78 Listings

Map

Luxury Homes in Islip, NY

24 of 78 Listings

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

Call Thomas

43Active

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

Call Thomas

$2,595,000

5 bd · 3 ba · 1,826 sqft

253 Cottage Walk, Islip, NY

Abigail Mago · Fire Island Sales And Rentals

Price Reduced27Active

$1,099,000

4 bd · 3 ba · 2,500 sqft

Lot 5 Lakeland Woods Unit 5, Islip, NY

Marion M. Wagner · RE/MAX Integrity Leaders

46Active

$1,199,990

5 bd · 4 ba · 2,900 sqft

124 Bayview Drive, Islip, NY

Robert M. Lorenzo II · Compass Greater NY LLC

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

Call Thomas

21Active

$1,125,000

8 bd · 6 ba · 4,943 sqft

82 Yale Avenue, Islip, NY

Nicholas Ramsingh · LAFFEY REAL ESTATE

49Active

$1,199,000

4 bd · 3 ba · 2,739 sqft

4 Saltmeadow Lane, Islip, NY

Tracy L. Boucher CBR · Signature Premier Properties

Price Reduced48Active

$3,599,000

3 bd · 3 ba · 3,767 sqft

170 S Penataquit Avenue, Islip, NY

Sherry L. Cutillo · Douglas Elliman Real Estate

42Active

$1,350,000

4 bd · 4 ba · 4,789 sqft

3 The Moor, Islip, NY

Chris J. Boylan · EXIT Realty Premier

Price ReducedOpen house Sat, Oct 17 · 1:00 PM31Active

$1,168,000

5 bd · 3 ba · 2,963 sqft

37 Gladstone Avenue, Islip, NY

Elora Schilling · Affordable Realty Corp

28Active

$1,390,000

4 bd · 2 ba · 1,250 sqft

31 E End Walk, Islip, NY

Abigail Mago · Fire Island Sales And Rentals

Price ReducedOpen house Sat, Oct 17 · 11:00 AM24Active

$1,095,000

4 bd · 4 ba · 3,900 sqft

406 Vanderbilt Boulevard, Islip, NY

Janet M. Maffucci CBR · Netter Real Estate Inc

Open house Sat, Oct 17 · 12:00 AM47Active

$1,449,000

3 bd · 2 ba · 1,835 sqft

12 Bayview Avenue, Islip, NY

David P. Sanders · Compass Greater NY LLC

43Active

$1,450,000

4 bd · 3 ba · 3,998 sqft

1355 Locust Avenue, Islip, NY

Debra Raimo · Douglas Elliman Real Estate

44Active

$1,144,000

6 bd · 7 ba · 4,431 sqft

8 Ralph Avenue, Islip, NY

Andrea J. Mendez · Vantage Realty Partners

49Active

$2,499,000

5 bd · 3 ba · 5,673 sqft

7 The Keel, Islip, NY

David Barkstedt · Serhant East End LLC

50Active

$2,000,000

9 bd · 9 ba · 5,756 sqft

64 Mowbray Avenue, Islip, NY

Peter C. Grosso CBR · RE/MAX Integrity Leaders

24Active

$1,300,000

6 bd · 4 ba · 3,555 sqft

14 New Street, Islip, NY

Hector V. Castillo · Exit Realty Limitless

46Active

$2,599,995

5 bd · 5 ba · 5,166 sqft

26 The Helm, Islip, NY

Steven J. Rainone CBR SRES · Netter Real Estate Inc

36Active

$1,099,999

3 bd · 3 ba · 2,200 sqft

6 Montgomery Lane, Islip, NY

Richard W. Kruse Jr AHWD · Douglas Elliman Real Estate

39Active

$2,200,000

10 bd · 7 ba · 8,783 sqft

45 S Penataquit Avenue, Islip, NY

Matthew B. Arnold · Netter Real Estate Inc

48Active

$1,650,000

2 bd · 2 ba · 912 sqft

65 Island Walk, Islip, NY

Tanya A. Fuchs · Daniel Gale Sothebys Intl Rlty

Price Reduced50Active

$3,650,000

5 bd · 5 ba · 6,286 sqft

608 Shore Drive, Islip, NY

Eric G. Ramsay III · Eric G Ramsay Jr Assoc LLC

26Active

$3,490,000

4 bd · 2 ba · 1,260 sqft

59 Laurel Avenue, Islip, NY

Abigail Mago · Fire Island Sales And Rentals

Price Reduced45Active

$1,599,000

4 bd · 3 ba · 2,200 sqft

851 W Bay Drive, Islip, NY

Frances Mazer CBR · Compass Greater NY LLC

50Active

$1,125,000

5 bd · 3 ba · 2,758 sqft

200 Greene Avenue, Islip, NY

Marian McKenna CBR E-PRO · Signature Premier Properties

1 2 3 4

Listing data & MLS disclosures

OneKey MLS: The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information deemed reliable but not guaranteed. Copyright © 2026 OneKey MLS. All Rights Reserved

Islip housing market

August 2026 · This period is still settling

Selling at 101.3% of asking price

Buyers here are paying above asking. MLS · 12 sales · as of Aug 31, 2026

Homes on the market · MLS, as of Aug 24, 2026–Aug 31, 2026

Median list price: $525,000
Homes for sale: 27
Median days on market: 15 days

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Aug 19, 2026

Median home size: 1,687 sq. ft.

Islip, NY community profile

Area: 5.1 sq. mi.

Source: HJN community data

L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

Call Thomas

Listing data & MLS disclosures

OneKey MLS: The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information deemed reliable but not guaranteed. Copyright © 2026 OneKey MLS. All Rights Reserved

Islip, NY community profile

Area: 5.1 sq. mi.

Source: HJN community data

Islip housing market

August 2026 · This period is still settling

Selling at 101.3% of asking price

Buyers here are paying above asking. MLS · 12 sales · as of Aug 31, 2026

Homes on the market · MLS, as of Aug 24, 2026–Aug 31, 2026

Median list price: $525,000
Homes for sale: 27
Median days on market: 15 days

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Aug 19, 2026

Median home size: 1,687 sq. ft.