Suffolk County, NY Multifamily properties for sale

Updated: Jun 26

Multi-Residence Compound with Cottages

718 Montauk Highway, East Quogue, NY 11942

$2,200,000

0.92 AC lot

Multi‑residence compound in East Quogue featuring a 1909 farmhouse plus two separate one‑bedroom cottages and an attached studio
Main residence layout includes 8 bedrooms, 5 bathrooms, dining room, eat‑in kitchen, den, and basement
Farmhouse interior features include a first‑floor bedroom and full bath, fireplace, built‑in features, pantry, and entrance foyer
Heating is oil‑based; cooling includes wall/window unit(s) and window unit(s)
Utilities include public water and septic tank sewer

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Updated: May 29

Income-Producing Duplex in East Islip

66-68 Hawthorne, East Islip, NY 11730

$895,000

0.52 AC lot

Duplex built in 1974 with brick and shingle siding and a colonial architectural style
Each unit features 3 bedrooms, a spacious living room, formal dining area, and an eat‑in kitchen
Private garage for each unit, plus driveway and off‑street parking
Shared laundry area with washer/dryer hookups for each unit
Oil heat with baseboard heating; cable available, with public water and public sewer

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Two-Family Home with Detached Garage

733 14th Street, West Babylon, NY 11704

$799,999

0.25 AC lot

Legal two-family with separate utilities, spacious units, and a detached two-car garage on a fenced lot.

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Legal Two-Family Residential Property

15-17 Park Woods Lane, Kings Park, NY 11754

$1,699,000

1.00 AC lot

Two-family home on flat, fenced grounds with an in-ground pool and separate Colonial and Ranch residences.

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Victorian 4-Unit Multifamily with Barn

454 Main Street, Center Moriches, NY 11934

$1,250,000

0.75 AC lot

Historic Victorian 4-unit residence with detached barn, fully occupied with three one-bedroom units and one studio.

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Two Homes, Southampton Opportunity

33 Locust Avenue, Southampton, NY 11968

$1,199,999

0.46 AC lot

Two detached homes on a single lot in Southampton.

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Bayfront Multifamily Cottages

654A DUNE RD, Westhampton Dunes, NY 11978

$3,950,000

2,174 sqft · 0.56 AC lot

Two connected cottages with separate living spaces, bulkheading, and a private deck overlooking the bay for year-round flexibility.

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Renovated 6BR Duplex on Corner Lot

458 N Magee Street, Southampton, NY 11968

$1,700,000

0.18 AC lot

Renovated duplex with updated kitchens and full unfinished basement, well suited for multi-generational or rental use.

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Detached Two-Family Residence

22 Beach Avenue, Copiague, NY 11726

$750,000

0.17 AC lot

Two separate 2-bedroom units with eat-in kitchens, hardwood floors, basement storage, and off-street parking via a private driveway.

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Victorian Multifamily with Flexible Zoning

761 E Main Street, Riverhead, NY 11901

$959,000

0.62 AC lot

Two income-producing homes on a park-like site with DC-3 flexibility for residential and commercial options.

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Corner Mixed-Use Property With Parking

2 1st Street, Coram, NY 11727

$699,990

0.25 AC lot

Mixed-use building with two residential units, a detached garage, and separate entry options for flexible living and rentals.

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Southold Two-Family Home with Barn

1220 Youngs Avenue, Southold, NY 11971

$1,295,000

0.46 AC lot

Legal two-family home with a repurposed barn and planting field.

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Huntington Station Duplex For Sale

41-43 Evert Street, Huntington Station, NY 11746

$899,988

0.28 AC lot

Legal duplex with income potential in Huntington Station location.

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Renovated Two-Family Home

54 Evergreen Street, West Babylon, NY 11704

$999,999

0.23 AC lot

Legal two-family home with modern finishes and income potential.

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Colonial Duplex with Parking Lot

250 Main Road, Riverhead, NY 11901

$1,199,000

1.24 AC lot

Two-unit Colonial on 1.24 acres with eight bedrooms, four baths, and off-street parking.

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Babylon Duplex with Private Driveways

7 Park Avenue, Babylon, NY 11702

$739,000

0.10 AC lot

Well-maintained duplex offers two separate units with private entrances, in-unit laundry, and dedicated basement storage.

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Legal Two-Family Corner Home

57 JERMAIN AVE, Sag Harbor, NY 11963

$1,949,000

1,577 sqft · 0.21 AC lot

Circa-1938 two-family home with two kitchens, three full baths, off-street parking, and a den on a corner lot.

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Detached Four-Home Rental Compound

73 North Road, Hampton Bays, NY 11946

$2,695,000

3,750 sqft · 0.60 AC lot

Four renovated three-bedroom homes with in-unit laundry and separate utilities support flexible rental or guest-ready use.

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Legal Two-Family Cape Cod

23 Robbins Avenue, Islip, NY 11751

$550,000

0.14 AC lot

Legal two-family Cape Cod offers two separate units with an unfinished basement and detached extra-deep garage.

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Legal Two-Family Home with Balcony

517 Herzel Boulevard, West Babylon, NY 11704

$824,999

Well-maintained two-family residence with an oversized 2-car garage and updated systems, offering flexible living layout.

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Greenport Legal Two-Family Property

401 Wiggins Street, Greenport, NY 11944

$1,297,000

0.12 AC lot

Two-family property in Greenport, NY, near local amenities.

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Lindenhurst Legal Two-Family Home

183 S 7th Street, Lindenhurst, NY 11757

$599,999

Legal two-family home in Lindenhurst Village, excellent income opportunity.

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Greenport Legal Two-Family Home

407 Wiggins Street, Greenport, NY 11944

$1,297,000

0.12 AC lot

Two-family home in Greenport Village near restaurants, shopping, and transportation.

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New Multifamily Development in Wyandanch

7 Patton Avenue, Wyandanch, NY 11798

$5,799,999

0.43 AC lot

Newly constructed 14-unit residential development near Wyandanch LIRR station.

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Suffolk County, NY Multifamily Properties Market Trends and Statistics

Explore 73 multifamily properties for sale in Suffolk County, NY, showcased through 73 active listings on our real estate platform. These investment opportunities span a total of 106,302 square feet of properties for sale, with an estimated market value of $55,761,000.

Sale prices for multifamily properties in Suffolk County, NY start at $799,000, averaging $3,485,062, and reaching up to $13,750,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Featured Suffolk County Real Estate Agencies

Realmo connects you with licensed Suffolk County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

Realty Connect USA

35 Arkay Dr Hauppauge, NY 11788

Phone: 16318815160

www.realtyconnectusa.com

Thomas J. McCarthy Real Estate Inc.

46520 route 48 Southold, NY 11971

Phone: 16317655815

www.thomasjmccarthy.com

Eric G. Ramsay Jr. Associate LLC

236 West Main St Bayshore, NY 11706

Phone: 16316651500