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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

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Selling Options

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

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

53 listings

Commercial Real Estate for Sale and Lease in Islip, NY

Commercial Real Estate for Sale and Lease in Islip, NY

24 of 53 Listings

Commercial Real Estate for Sale and Lease in Islip, NY

24 of 53 Listings

1Active

$850/mo

— bd · — ba · 400 sqft

463 Montauk Highway, Islip, NY

Alice Yurkerwich · Howard Hanna Coach

$2,489,999

— bd · — ba · 6,570 sqft

24 Cottage Avenue, Islip, NY

Domenick J. Cartelli Jr · Nest Seekers International LLC

$735/mo

— bd · — ba · 250 sqft

175 Orinoco Drive, Islip, NY

Helen A. Thompson · Sunset 3 Realty

$2,875/mo

— bd · — ba · 4,045 sqft

472 Main Street, Islip, NY

Michael J. Watts · Michael J Watts & Assoc Inc

$2,695,000

— bd · — ba · 8,000 sqft

1687 Church Street, Islip, NY

Giannoula Colasanto · 365 Realty Group Inc

$249,999

— bd · — ba · 3,100 sqft

56 Main Street, Islip, NY

Anthony L. Guidice · RE/MAX Signature Real Estate

$2,500/mo

— bd · — ba · 1,000 sqft

45 Fifth Avenue, Islip, NY

Blaine E. Ferraro · Bayberry Properties LLC

Price Reduced16Active

$309,000

— bd · — ba · 1,000 sqft

369 E Main Street, Islip, NY

David Friedman · Howard Hanna Coach

$550/mo

— bd · — ba · 90 sqft

608 Johnson Avenue 7, Islip, NY

LeVar D. Carter · Dream Select Realty Corp

$38/mo

— bd · — ba · 22,000 sqft

400 Townline Road, Islip, NY

Gina Coletti RSPS SRES PMN · GC Advisory Group Inc

$4,200/mo

— bd · — ba · 1,800 sqft

4846 Sunrise Highway 4846, Islip, NY

Gina Coletti RSPS SRES PMN · GC Advisory Group Inc

$2,400,000

— bd · — ba · 14,623 sqft

193 W Main, Islip, NY

Justin S. Galbraith · Eric G Ramsay Jr Assoc LLC

$4,750/mo

— bd · — ba · 32,481 sqft

1340 Lincoln 2, Islip, NY

Aric H. Schachner · Camco Services of NY Inc

$425,000

— bd · — ba · 750 sqft

300 Brook Avenue, Islip, NY

Eileen Familia · Howard Hanna Coach

$2,500/mo

— bd · — ba · 5,500 sqft

355 Union Boulevard, Islip, NY

Patty J. Vorilas · Douglas Elliman Real Estate

$1,600,000

— bd · — ba · 6,550 sqft

146 Railroad Avenue, Islip, NY

Theodore Gounelas CBR · Coldwell Banker M&D Good Life

$3,000/mo

— bd · — ba · 8,000 sqft

213 Higbie Lane, Islip, NY

Robert J. Massaro · Jones Hollow Realty Group Inc

$725,000

— bd · — ba · 2,017 sqft

2163 Sunrise Highway, Islip, NY

Lisa Campbell · Netter Real Estate Inc

Price Reduced15Active

$935,000

— bd · — ba · 16,553 sqft

48-52 Browns River Road, Islip, NY

Richard Matt Shane · All Island Estates Realty Corp

Price Reduced5Active

$3,000/mo

— bd · — ba · 1,340 sqft

249 West Main Street, Islip, NY

Octavius Amen · American Real Estate Assoc Inc

$5,500/mo

— bd · — ba · 2,500 sqft

91B Moffitt Boulevard, Islip, NY

Nicolo Caputi · Blue Island Homes NY LLC

$7,000/mo

— bd · — ba · 6,750 sqft

146 Railroad Avenue, Islip, NY

Theodore Gounelas CBR · Coldwell Banker M&D Good Life

$300,000

— bd · — ba · 1,957 sqft

Address withheld · Islip, NY

Esperanza Viera · Jones Hollow Realty Group Inc

Price Reduced39Active

$2,999,999

— bd · — ba · 3,845 sqft

21 Broadway, Islip, NY

Nathaniel J. Larson · Daniel Gale Sothebys Intl Rlty

1 2 3

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.

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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

Commercial Real Estate for Sale and Lease in Islip, NY | Realty.com