Homes with Basements for Sale in Islip, NY

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OPEN SUN, 11AM TO 12:30PMFLOOR PLAN

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Turnkey Craftsman Charm in the Heart of Islip Welcome to this beautifully maintained 1920s Craftsman-style home, where timeless architectural character meets thoughtful modern updates. From the moment you arrive, the exceptional care and attention to detail are evident. Completely turnkey and truly move-in ready, this meticulously maintained home is filled with warmth, charm and character at every turn. Start your morning with coffee on the inviting front porch, then step inside to discover gorgeous hardwood floors, a cozy gas fireplace, original architectural details and an abundance of natural light. The expanded kitchen beautifully blends the character of the home with modern convenience

$625,000

2 beds2 baths1,158 sq ft

87 Islip Ave, Islip, NY 11751

Cozy gas fireplace • Craftsman style home • Expanded kitchen

Listing by Douglas Elliman Real Estate

NEW 9 HRS AGO

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Incredible opportunity in the heart of Islip! This spacious 5-bedroom, 3-bath expanded ranch offers tremendous upside for the right buyer. The layout includes a legal-potential accessory apartment — ideal for extended family, rental income, or a mother/daughter setup (buyer to verify permits/legality with the Town of Islip). This home needs work throughout, making it the perfect canvas for an investor, flipper, or handy buyer looking to build sweat equity in a desirable Long Island location. Sold strictly as-is, cash buyers preferred — bring your vision and your contractor. Situated on a generous lot in a convenient location close to the Islip LIRR station, Main Street shops and

$649,995

5 beds3 baths2,447 sq ft

437 Moffitt Blvd, Islip, NY 11751

Close to restaurants • Generous lot • Convenient location

Listing by Keller Williams Points North

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Welcome to this spacious 5 bedroom. 2 bathroom home offering plenty of room to live, work, and entertain. Set on an impressive half-acre of property, this home provides generous indoor and outdoor space with endless possibilities. The large windows bring lots of natural light into the home. Two bedrooms on first floor can also be used for office or den. The sunlit staircase with cathedral ceiling brings you to the second floor where you will find a large primary, two other bedrooms, and full bath. The full unfinished basement gives you an abundance for storage, recreation, workshop, or future finishing possibilities. Located on a quiet, wide street, the property offers a peaceful setting wh

$699,999

5 beds2 baths2,144 sq ft

271 Wilson Blvd, Islip, NY 11751

Large windows • Sunlit staircase • Cathedral ceiling

Listing by Douglas Elliman Real Estate

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Welcome to 50 Bittermint St, Islip! This beautifully renovated Colonial offers 3 bedrooms and 3 full bathrooms with a bright, modern, and functional layout. The home features an updated kitchen, stylishly renovated bathrooms, gas cooking, and gas heating. A full finished basement with a separate outside entrance provides additional versatile space. The property also includes a detached garage and a spacious yard. Conveniently located near shopping, dining, schools, parks, and major roadways. Move-in ready and a must-see!

$679,000

3 beds3 baths1,500 sq ft

50 Bittermint St, Islip, NY 11751

Spacious yard • Finished basement • Updated kitchen

Listing by Island Edge Homes

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Why rent when you can own? This spacious 2nd-floor, 2-bedroom cooperative unit, is one of the largest in the development. This unit is not just a place to live; it's a lifestyle choice. Imagine hosting friends and family in your ample living room, with plenty of room to relax and entertain. The large bedrooms provide a peaceful retreat, ensuring everyone has their own personal space, while the abundant storage options make it simple to keep your living area organized and clutter-free. The location is unbeatable! With the LIRR nearby, commuting into the city is a breeze. Sunrise Highway offers quick access to shopping, dining, and beautiful local beaches, with Islip High School being just ac

$239,999

2 beds1 bath940 sq ft

2453 Union Unit 20B, Islip, NY 11751

Ample living room • Clubhouse • Dog run

Listing by Douglas Elliman Real Estate

Property at 86 Cardinal Ln Unit 2B, Islip, NY 11751, 1 bed, 1 bath

$289,000

1 bed1 bath680 sq ft

86 Cardinal Ln Unit 2B, Islip, NY 11751

Listing by Signature Premier Properties

Property at 72 Peckham Ave, Islip, NY 11751, 5 beds, 3 baths

$749,999

5 beds3 baths2,632 sq ft

72 Peckham Ave, Islip, NY 11751

Listing by Nova Real Estate NY Corp

Property at 1333 Boston Ave, Bay Shore, NY 11706, 3 beds, 2.5 baths

$719,000

3 beds2.5 baths1,596 sq ft

1333 Boston Ave, Bay Shore, NY 11706

Listing by Exit Realty Achieve

Property at 61 Ocean Ave, Islip, NY 11751, 8 beds, 5.5 baths

$2,149,000

8 beds5.5 baths5,145 sq ft

61 Ocean Ave, Islip, NY 11751

Listing by OverSouth LLC

Property at 2397 Union Blvd Unit 8a, Islip, NY 11751, 2 beds, 1 bath

$265,000

2 beds1 bath925 sq ft

2397 Union Blvd Unit 8a, Islip, NY 11751

Listing by Migrate Realty LLC

Property at 2449F Union Blvd Unit 9B, Islip, NY 11751, 2 beds, 1 bath

$284,999

2 beds1 bath938 sq ft

2449F Union Blvd Unit 9B, Islip, NY 11751

Listing by RE/MAX Team

Property at 44 Plum St, Central Islip, NY 11722, 3 beds, 2 baths

$680,000

3 beds2 baths1,341 sq ft

44 Plum St, Central Islip, NY 11722

Listing by Orion Realty Group Florida LLC

Property at 2 Taft Ave, Islip, NY 11751, 4 beds, 2.5 baths

$749,000

4 beds2.5 baths1,884 sq ft

2 Taft Ave, Islip, NY 11751

Listing by Signature Premier Properties

Property at 65 W Bayberry Rd, Islip, NY 11751, 5 beds, 4 baths

$2,990,000

5 beds4 baths5,629 sq ft

65 W Bayberry Rd, Islip, NY 11751

Listing by Eric G Ramsay Jr Assoc LLC

Property at 66 Adelhaide Ln, East Islip, NY 11730, 4 beds, 2.5 baths

$1,499,000

4 beds2.5 baths3,117 sq ft

66 Adelhaide Ln, East Islip, NY 11730

Listing by Frontline Realty Group LLC

Property at 62 Adelhaide Ln, East Islip, NY 11730, 4 beds, 2.5 baths

$1,499,000

4 beds2.5 baths3,117 sq ft

62 Adelhaide Ln, East Islip, NY 11730

Listing by Frontline Realty Group LLC

Property at 2453 Union Blvd Unit 24a, Islip, NY 11750, 1 bed, 1 bath

$225,000

1 bed1 bath600 sq ft

2453 Union Blvd Unit 24a, Islip, NY 11750

Listing by Migrate Realty LLC

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OPEN THU, 5:30PM TO 7:30PMFLOOR PLAN

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Welcome to this beautifully maintained 5-bedroom, 2-bath home, lovingly cared for by the same owners for many, many years! This spacious and inviting property offers a wonderful combination of charm, comfort, and versatility, with part of the home currently utilized as an Airbnb, providing an excellent opportunity for additional income potential. Inside, you’ll find beautiful wood floors, crown molding, a cozy fireplace, central air, gas heat, and a bright, inviting sunroom perfect for enjoying your morning coffee or relaxing at the end of the day. The bedrooms are generously sized and the primary accommodates king-size furniture, while the large 'granny' attic offers abundant storage

$799,999

5 beds2 baths2,160 sq ft

73 Maple Ave, Bay Shore, NY 11706

Entertaining yard • Wood floors • Spacious deck

Listing by Douglas Elliman Real Estate

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Lovingly restored and thoughtfully enhanced by its current owners, this remarkable 1880 residence reflects years of careful stewardship And substantial investment. Every update was made to elevate everyday living while honoring the home's character and architectural integrity. Updates: 2021 : New Siding & Windows, New PVC & Aluminum Fencing. Leaf Filter on All Gutters 2021/2022 : Basement waterproofed ( Lifetime guarantee ) 2021/2022 : Pool heater & Filter 2022 : New Split Units 2023: Generator, 15 zone Sprinklers, Alarm system with 11 Cameras hooked up to Central Station, Doors 2024: New Kitchen & Appliances, Motorized Shades in Living Room 2025: New driveway, Ne

$1,599,000

6 beds3.5 baths3,617 sq ft

75 S Penataquit Ave, Bay Shore, NY 11706

New siding • New aluminum fencing • New pvc fencing

Listing by Douglas Elliman Real Estate

OPEN SUN, 12PM TO 2PM

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
This 2 story home has Boost 5 bedrooms, 4 full baths, Livingroom, Breakfast Nook, Formal Dining room, Family room with full bath, Laundry room, Partial Finished basement, Curved driveway, Gazebo, Deck, Large shed, Also has 3 entrance to this property. Has great opportunity for Income producing unit. Great House for large family or in-laws. This house has a lot to offer and is a must to see. Owner will entertain all offers in writing.

$759,000

5 beds4 baths2,985 sq ft

9 Watson St, East Islip, NY 11730

9,148 sq ft lot • 4 parking spots • Built 1925

Listing by Bizzy Bee Realty

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
PRIME LOCATION & COMMUTER’S DREAM IN AN AWARD-WINNING SCHOOL DISTRICT It's here! The opportunity you have been waiting for to live in a great location such as Islip Terrace in very highly-rated East Islip School District. You will have the best of both worlds to be in a lovely residential community and also have convenient access to major roadways, transportation, and the many amenities that abound nearby!! About the home. .. Nestled in a highly-accessible pocket of Islip Terrace, this property offers an unparalleled combination of top-tier public schools, exceptional commuter connectivity, and vibrant local amenities. * Picture this. .. * "Welcome home" to a well-

$600,000

3 beds1 bath1,200 sq ft

85 Stellenwerf Ave, Islip Terrace, NY 11752

Fenced yard • New hot water heater • Large enclosed patio

Listing by H & G Realty New York

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Welcome to an exceptional offering within The Moorings, one of Long Island’s distinguished private gated waterfront communities with 24 hour security, tennis/pickleball courts and marina. Spanning nearly 5,600+ square feet, this impressive residence offers generous proportions and remarkable privacy, complemented by a private deeded boat slip, three-car garage, water views, beautifully landscaped grounds and expansive indoor and outdoor entertaining spaces. A grand entry foyer sets the tone inside, introducing elegant formal sitting and dining rooms accented by custom moldings. The expansive eat-in kitchen serves as the heart of the home, opening naturally to a comfortable family room

$2,499,000

5 beds3 baths5,673 sq ft

7 The Keel, East Islip, NY 11730

First-floor bedroom • Water views • 0.91 acre lot

Listing by Serhant East End LLC

ABOUT THIS HOME
Home with Basement for sale in Islip, NY:
Rare Waterfront Investment Opportunity On Penataquit Canal! This Exceptional Home Offers Over 180 Feet Of Prime Waterfront With 13 Private Boat Slips, Expansive Docking, And Breathtaking Views Of Fire Island. Situated At The End Of A Quiet Cul-De-Sac, This Unique Property Features A Total Of 9 Bedrooms And 9 Bathrooms, Including 5 Bedrooms With Private En-Suite Baths. Step Outside To A True Waterfront Oasis Featuring An In-Ground Pool With An In-Ground Hot Tub, A Stunning Brick Outdoor Kitchen, Expansive Paver Patio, And Swaying Palm Trees, Creating The Ultimate Resort-Style Setting For Entertaining Or Relaxing Along The Water. Whether You're Looking To Expand Your Investment Portfolio, Gen

$2,000,000

9 beds9 baths5,756 sq ft

64 Mowbray Ave, Bay Shore, NY 11706

In-ground pool • Private boat slips • Expansive docking

Listing by RE/MAX Integrity Leaders

Property at 26 The Helm, East Islip, NY 11730, 5 beds, 4.5 baths

$2,599,995

5 beds4.5 baths5,166 sq ft

26 The Helm, East Islip, NY 11730

Listing by Netter Real Estate Inc

Property at 45 S Penataquit Ave, Bay Shore, NY 11706, 10 beds, 7 baths

$2,200,000

10 beds7 baths8,783 sq ft

45 S Penataquit Ave, Bay Shore, NY 11706

Listing by Netter Real Estate Inc

Property at 85 Cocoanut St, Central Islip, NY 11722, 5 beds, 5 baths

$999,000

5 beds5 baths2,213 sq ft

85 Cocoanut St, Central Islip, NY 11722

Listing by Signature Premier Properties

Property at 48 Ellen St, Bay Shore, NY 11706, 4 beds, 2 baths

$699,999

4 beds2 baths1,176 sq ft

48 Ellen St, Bay Shore, NY 11706

Listing by Signature Premier Properties

Property at 19 Chapman Pl, Bay Shore, NY 11706, 3 beds, 1 bath

$600,000

3 beds1 bath1,056 sq ft

19 Chapman Pl, Bay Shore, NY 11706

Listing by Island Advantage Realty LLC

Property at 48 Cocoanut St, Central Islip, NY 11722, 3 beds, 1 bath

$299,999

3 beds1 bath829 sq ft

48 Cocoanut St, Central Islip, NY 11722

Listing by Keller Williams NYC

Property at 182 New York Ave, Bay Shore, NY 11706, 4 beds, 2 baths

$685,000

4 beds2 baths2,188 sq ft

182 New York Ave, Bay Shore, NY 11706

Listing by HomeCoin.com

Property at 82 Stahley St, Brentwood, NY 11717, 4 beds, 3 baths

$780,000

4 beds3 baths1,800 sq ft

82 Stahley St, Brentwood, NY 11717

Listing by Coldwell Banker American Homes

Property at 33 Meadow Farm Rd, East Islip, NY 11730, 6 beds, 4 baths

$1,650,000

6 beds4 baths5,593 sq ft

33 Meadow Farm Rd, East Islip, NY 11730

Listing by Netter Real Estate Inc

Property at 146 Penataquit Ave, Bay Shore, NY 11706, 3 beds, 1 bath

$525,000

3 beds1 bath745 sq ft

146 Penataquit Ave, Bay Shore, NY 11706

Listing by HomeSmart Premier Living Rlty

Property at 34 Peach St, Central Islip, NY 11722, 2 beds, 2 baths

$549,000

2 beds2 baths1,955 sq ft

34 Peach St, Central Islip, NY 11722

Listing by Signature Premier Properties

Property at 26 Garfield Ave, East Islip, NY 11730, 2 beds, 1 bath

$640,000

2 beds1 bath864 sq ft

26 Garfield Ave, East Islip, NY 11730

Listing by Howard Hanna Coach

Property at 683 Broadway, Brentwood, NY 11717, 4 beds, 2 baths

$850,000

4 beds2 baths2,232 sq ft

683 Broadway, Brentwood, NY 11717

Listing by Premium Group Realty Corp

Property at 59 Irish Ln, East Islip, NY 11730, 3 beds, 2 baths

$550,000

3 beds2 baths1,981 sq ft

59 Irish Ln, East Islip, NY 11730

Listing by Redfin Real Estate

Based on information submitted to the MLS GRID as of Wed Sep 09 2026. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

Homes with Basements for Sale in Islip

There are currently 17 homes with basements for sale in Islip at a median listing price of $649K. Some of these homes are "Hot Homes," meaning they're likely to sell quickly. Most homes for sale in Islip stay on the market for 33 days and receive 5 offers. Popular neighborhoods include Deer Run, South of Montauk, Islip, Downtown, and Long Island. This map is refreshed with the newest listings in Islip every 15 minutes.

In the past month, 14 homes have been sold in Islip. In addition to houses in Islip, there were also 14 condos, 0 townhouses, and 1 multi-family unit for sale in Islip last month. Islip is a minimally walkable city in Suffolk County with a Walk Score of 42. Islip is home to approximately 18,517 people and 3,897 jobs. Find your dream home in Islip using the tools above. Use filters to narrow your search by price, square feet, beds, and baths to find homes that fit your criteria. Our top-rated real estate agents in Islip are local experts and are ready to answer your questions about properties, neighborhoods, schools, and the newest listings for sale in Islip. Our Islip real estate stats and trends will give you more information about home buying and selling trends in Islip. If you're looking to sell your home in the Islip area, our listing agents can help you get the best price. Redfin is redefining real estate and the home buying process in Islip with industry-leading technology, full-service agents, and lower fees that provide a better value for Redfin buyers and sellers.

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