Long Island, NY Multifamily Homes & Duplexes for Sale

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  /9

  $1,399,000

  • 6 Beds
  • 4 Baths
  • 2,808 Sq Ft

  136 Fairview Blvd, Hempstead, NY 11550

  Recently renovated, this legal four-family home is situated in the heart of Hempstead. This property presents a strong investment opportunity with income generation and growth potential. Its modern renovations and strategic location attract tenants, ensuring steady rental income. Offering a variety of apartment sizes. The property features newly updated kitchens equipped with new stainless steel

  Stella Tam DH Citadel Real Estate LLC

  136 Fairview Blvd, Hempstead, NY 11550
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  /32

  $2,995,000

  • 4 Beds
  • 4 Baths
  • 3,500 Sq Ft

  30 Springwood Way, East Hampton, NY 11937

  Experience the serene elegance of this beautifully appointed home with water views in the heart of East Hampton. Nestled on an elevated half acre, this residence offers breathtaking views of Three Mile Harbor, allowing sunlight to bathe the interiors with warmth throughout the day. This recently renovated home combines charm and contemporary style. The main level welcomes you with an open-plan

  Susan Ryan Compass

  30 Springwood Way, East Hampton, NY 11937
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  /29

  $749,000

  • 3 Beds
  • 2 Baths
  • 1,628 Sq Ft

  55 Vernon Ave, Rockville Centre, NY 11570

  Welcome to 55 Vernon Avenue! This home was built in 1911 and started off as one family residence. Shortly after World War II, the house was converted into a two-family dwelling, and it has been in the same family since 1956. Both apartments have their own gas and electric meters, and the home was converted to gas heat in 2009. Other updates include vinyl siding, new windows in 2010, new

  Kenneth Nugent Daniel Gale Sothebys Intl Rlty

  55 Vernon Ave, Rockville Centre, NY 11570
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  /39

  $850,000

  • 4 Beds
  • 3 Baths
  • 3,487 Sq Ft

  46 Lincoln Ave, Sayville, NY 11782

  Welcome to 46–48 Lincoln Avenue—an incredible legal two-family home located in the heart of charming Sayville. Built in 1880, this side-by-side duplex blends timeless character with modern-day potential.Each unit features 2 spacious bedrooms, a massive third-floor attic offering endless storage or bonus space, private driveways, and separate detached 1-car garages—ideal for

  Shaughnessy Dusling Real Broker NY LLC

  46 Lincoln Ave, Sayville, NY 11782
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  /8

  $1,950,000

  • 5 Beds
  • 3 Baths
  • 968 Sq Ft

  72 Ohio Ave, Long Beach, NY 11561

  Don't miss this exciting opportunity to own a brand-new, FEMA compliant two-family home in the heart of Long Beach's sought-after West End. Currently under construction, this modern residence offers coastal living at its finest! Close to the beach, shopping, restaurants, entertainment, transportation and parks. Street level features covered parking for 4 cars and storage room. Lower unit features

  Rhonda Healy C21 Verdeschi & Walsh Realty

  72 Ohio Ave, Long Beach, NY 11561
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  /23

  $849,000

  • 5 Beds
  • 3 Baths
  • 2,200 Sq Ft

  90 Blydenburg Ave, Smithtown, NY 11787

  This is a Legal Two Family Home by C/O. Each Unit has Separate Electric Meters and Gas Meters. It has a Two Car Garage attached to the First Floor Unit with Entry from Inside. Private Fenced In Backyard. There is a Common Entry Foyer with Separate Doors Leading to Each Unit. The First Floor 3 Bedroom 2 Bathroom Unit has Recently Been Renovated with New Laminate Flooring, Fresh Paint, and New

  Derek Greene Greene Realty Group

  90 Blydenburg Ave, Smithtown, NY 11787
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  /5

  $899,990

  • 4 Beds
  • 2 Baths

  918 10th St, West Babylon, NY 11704

  Welcome to this mint 2 family by C/O. Situated on a 80 X100 lot, updated kitchen and bath featuring 4 brs, 3 full baths, full finished basement with outside entrance, detached 2 car garage. Enjoy a peaceful serene yard. All information is deemed and reliable but not guaranteed. All offers must be in writing with pre-approval and proof of funds. Email to hugobgomez@hotmail.com.

  Hugo Gomez Dream Castle Realty

  918 10th St, West Babylon, NY 11704
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  /16

  $595,000

  • 2,376 Sq Ft

  40 Garden Rd, Rocky Point, NY 11778

  Single family dwelling with an accessory apartment , comprising an upstairs unit with three bedrooms and one bath and ground-floor with one bedroom and one bath. Each unit has its own outdoor space—a deck for upstairs and a patio for down—plus separate parking areas.

  Lisa Oehler Serhant East End LLC

  40 Garden Rd, Rocky Point, NY 11778
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  /20

  $875,000

  • 3 Beds
  • 2 Baths
  • 1,460 Sq Ft

  570 E Chester St, Long Beach, NY 11561

  Welcome to this beautifully maintained Two-family home offering comfort, style, and versatility. With a total of 3 bedrooms and 2 full bathrooms, this property is perfect for homeowners seeking extra rental income or multi generational living. Enjoy outdoor living in a large, private yard perfect entertaining, gardening, or relaxing in your own green space. This yard features an outdoor

  Ben Oppenheimer Coldwell Banker American Homes

  570 E Chester St, Long Beach, NY 11561
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  /29

  $6,800,000 Open Sat 10:30AM - 12PM

  • 6 Beds
  • 6.5 Baths
  • 9,931 Sq Ft

  8 Widow Coopers Path, Sag Harbor, NY 11963

  **Elegant and Spacious Retreat in North Haven Point** Discover a luxurious lifestyle at 8 Widow Coopers Path, an exceptional residence nestled in the prestigious gated community of North Haven Point. This majestic home, spanning an impressive 9,931 square feet on three levels, is a masterpiece of elegant design and modern comfort, built in 2011 with meticulous attention to detail. The residence

  Kathleen Zappola Compass

  8 Widow Coopers Path, Sag Harbor, NY 11963
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  /14

  $747,000

  • 6 Beds
  • 2 Baths
  • 2,000 Sq Ft

  204-206 Cornell St, Hempstead, NY 11550

  This Duplex Rent Roll is $7,400+ monthly rent and has a full unfinished basement with an outside entrance. This home is ideal for an investor seeking to generate income immediately after closing. 1) The property taxes are approximately $19,000 yearly 2) Legal two-family home with separate Electric, Heat, and hot water tanks 3) Full unfinished basement with two outside

  Doctor Brian Agard HUGS Realty Corp

  204-206 Cornell St, Hempstead, NY 11550
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  /24

  $1,099,000

  • 6 Beds
  • 4 Baths
  • 2,424 Sq Ft

  14 Long Branch Rd, Glen Cove, NY 11542

  Welcome To 14 Long Branch Road, A Rarely Available Well-Maintained Newer Constructed Two-Family Home In The Heart Of Glen Cove. Inside Each Unit You Will Find 3 Large Bedrooms And 2 Full Bathrooms Including X-Large En Suite Primary, Oak Hardwood Floors, Central Air, Ample Closet Space, Open Floor Plan Kitchens With Large Islands, Great Natural Light Throughout, Extra Wide Hallways To Accommodate

  Jeffrey Stineback Compass Greater NY LLC

  14 Long Branch Rd, Glen Cove, NY 11542
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  /9

  $1,100,000

  • 6 Beds
  • 2 Baths

  ****** Hardy Ln, Salisbury, NY 11590

  Large, Mint Condition, Dormered and Extended Levitt ranch. M/D with proper permits. First floor has updated kitchen, dining room, living room, full bath, and 3 bedrooms. Second floor has 3 bedrooms, kitchen , dining area, living room and full bath. Home also has PAID in FULL solar panels for reduced electrical expenses. 2 Driveways, one in the front and one in the rear of the home. Southbury

  Karina Prudencio PRUDENCIO & CO

  ****** Hardy Ln, Salisbury, NY 11590
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  /27

  $799,000

  • 3 Beds
  • 3 Baths
  • 1,532 Sq Ft

  46 Coles St, Glen Cove, NY 11542

  Two-Family Home with Bonus Lot and Prime Location!Welcome to this well-maintained two-family home offering great flexibility and income potential! The first-floor features 1 spacious bedrooms, a comfortable living room, an eat-in kitchen, and a full bath, playroom/office. A full unfinished basement with washer/dryer hookups, a side entrance, and high ceilings adds extra space and future

  Mary Stanco BERKSHIRE HATHAWAY

  46 Coles St, Glen Cove, NY 11542
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  /19

  $1,150,000

  • 5 Beds
  • 2,052 Sq Ft

  127 Gordon Rd, Valley Stream, NY 11581

  Rare legal 2 family home located in the Hewlett-Woodmere school district #14. Beautifully maintained with many updates. Mid-block location. Very long driveway and garage. Recent updates include a new Burnham gas boiler installed in 2021, A new Timberline 50 year roof installed in 2021 along with new gutters and leaders. New driveway installed in 2023, Cambridge pavers on the walkway and

  Jay Goldman Julia Stevens Realty

  127 Gordon Rd, Valley Stream, NY 11581
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  /38

  $1,199,999

  • 4 Beds
  • 3 Baths
  • 2,698 Sq Ft

  402 N Village Ave, Rockville Centre, NY 11570

  THIS IS A LEGAL TWO-FAMILY HOMEThis charming, two-family home in Rockville Centre offers a versatile and spacious layout, perfect for extended family or rental income. The first-floor apartment features a large living room, eat-in kitchen, full bath, and laundry area, providing privacy and convenience. Upstairs, the main house boasts three full baths (one on the 1st floor behind the

  Nancy O'Brien Howard Hanna Coach

  402 N Village Ave, Rockville Centre, NY 11570
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  /26

  $1,390,000

  • 3 Baths
  • 2,220 Sq Ft

  38 Nesaquake Ave, Port Washington, NY 11050

  Beautiful water view 2 family house for sale, located at Port Washington, prime location , close to the heart of town .Built in 1953, renovated in 2006 ,First floor has 3 bedroom, full bathroom, big living room, eat-in kitchen private side yard .Second floor has 3 bedroom, 1.5 bathrooms, big living room, eat-in kitchen + balcony ,private backyard, washer dryer in the

  Fenger Zou E Realty International Corp

  38 Nesaquake Ave, Port Washington, NY 11050
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  /14

  $885,000

  • 4 Beds
  • 2 Baths
  • 1,975 Sq Ft

  11 Duryea Place, Lynbrook, NY 11563

  Fantastic Legal two family, First floor has two bedrooms, full bathroom, beautiful updated eat in kitchen, large living room with fireplace and wood floors, Second floor has two bedrooms, full bathroom, beautiful updated eat in kitchen, living room. Finished basement with laundry room, Park like yard, two car garage with long driveway, solar panels for second floor 56.00 monthly for 25 yrs.

  Lisa Fava Becker Realty Services Inc

  11 Duryea Place, Lynbrook, NY 11563
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  /23

  $1,100,000

  • 4 Beds
  • 3 Baths

  4 Parkview Terrace, Huntington, NY 11743

  Legal Two Family Home In Huntington Village, Beautiful Moldings, Hardwood Floors, Two Fireplaces, 11 Ft. Ceilings InLivingroom With Fireplace, Kitchen With Fireplace. Fenced .25 Acre Property. Off Street Parking For Three Cars, Plus Street Parking. Full Basement, Gas Heating, Separate Hot Water Heater, Washer/Dryer.

  Barbara Lynch Daniel Gale Sothebys Intl Rlty

  4 Parkview Terrace, Huntington, NY 11743
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  /39

  $1,299,000

  • 6 Beds
  • 4 Baths
  • 3,124 Sq Ft

  36 W Saint Marks Place, Valley Stream, NY 11580

  Welcome to 36 St Marks Place, a beautifully renovated and well-maintained legal two-family home — a rare and valuable find in today’s market and neighborhood. Offering over 3,100 square feet of thoughtfully designed living space across three levels, this residence provides exceptional flexibility for multi-generational living, investment potential, or simply enjoying abundant room to grow. The

  Zain Ali Best American Homes Inc

  36 W Saint Marks Place, Valley Stream, NY 11580
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  /35

  $799,000

  • 3 Beds
  • 2 Baths
  • 1,664 Sq Ft

  66 Gates Ave, Valley Stream, NY 11580

  Cozy 2 Family Set Mid-Block in Quiet Residential Neighborhood in the Village of Valley Stream. First Floor is vacant. Second Floor Tenant has Lease until December. General & School Taxes = $9,485 + Village Taxes = $3121. Total Taxes = $12,606. Legal 2 Family, Upstairs Tenant their for 23 years. Great Opportunity Investment for Family

  Grace Desiderio ERA/Caputo Realty

  66 Gates Ave, Valley Stream, NY 11580
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  /30

  $999,000

  • 5 Beds
  • 3 Baths
  • 2,769 Sq Ft

  345 E Park Ave, Long Beach, NY 11561

  Discover a rare gem in the heart of Long Beach – this expansive multi-family home at 345 E Park Ave offers two generous units, a 3 bedroom-2 bathroom, and a 2 bedroom-1 bathroom, brimming with coastal charm and solid investment potential. Built in 1955, the property sits on a spacious lot just minutes from the beach, boardwalk, LIRR, shops, and restaurants—perfect for tenants or dual living. With

  Gil Shemtov Douglas Elliman Real Estate

  345 E Park Ave, Long Beach, NY 11561
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  /42

  $988,888 Open Sun 1:30PM - 3:30PM

  • 4 Beds
  • 3 Baths
  • 1,400 Sq Ft

  1114 1st Ave, New Hyde Park, NY 11040

  **INVESTOR'S DREAM!! INCOME PRODUCING PROPERTY!! LOW TAXES!!** 1ST FLOOR NEWLY VACANTBeautifully designed and thoughtfully updated, this 4-bedroom, 3-bathroom legal 2-family home sits proudly on a prime corner lot in the charming Village of New Hyde Park, within the highly regarded New Hyde Park–Garden City Park School District, with Low Taxes! Each spacious unit features 2 bedrooms and 1

  Lauren Picone Douglas Elliman Real Estate

  1114 1st Ave, New Hyde Park, NY 11040
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  /22

  $939,000

  • 3 Beds
  • 2 Baths
  • 1,714 Sq Ft

  75 Anstice St, Oyster Bay, NY 11771

  Beautiful 2 family colonial on an oversized lot in the heart of Oyster Bay. Traditional colonial entrance foyer. The first floor apartment has 2 bedrooms, kitchen with island and stainless appliances, living room/dining, mudroom and full bath. The second floor apartment has one bedroom, living room, kitchen and full bath and a partial water view. Finished basement with large main area, plenty

  Luisa Fazzalari Douglas Elliman Real Estate

  75 Anstice St, Oyster Bay, NY 11771
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  /33

  $865,000

  • 4 Beds
  • 2 Baths
  • 2,011 Sq Ft

  10 Leach St, Lynbrook, NY 11563

  Welcome to this charming legal 2-family home in the heart of Lynbrook, offering excellent income potential! Each unit features 2 bedrooms, 1 full bath, a bonus room in the first floor perfect for an office or potential third bedroom and spacious, updated kitchens in both units. Enjoy a private backyard perfect for entertainment and a large driveway, and a detached garage -ideal for multiple

  Naima Alexander Keller Williams Realty Greater

  10 Leach St, Lynbrook, NY 11563
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  /3

  $749,000

  • 3 Beds
  • 2 Baths
  • 1,160 Sq Ft

  44 Firwood Rd, Port Washington, NY 11050

  Two-Family Home on 40x100 lot. 1 Bedroom Apartment in Front of House; 2 Bedroom Apartment in Back of House. Rents have not been increased in several years. Please do not walk the property without an appointment.

  Marybeth Ressa Ressa Management LLC

  44 Firwood Rd, Port Washington, NY 11050
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  /3

  $749,000

  • 2 Baths
  • 1,061 Sq Ft

  42 Firwood Rd Unit A, Port Washington, NY 11050

  Two-Family Home on 40x100 lot. 1 Bedroom Apartment in Front of House; 2 Bedroom Apartment in Back of House. Both Tenants will be vacating in July. Please do not walk the property without an appointment.

  Marybeth Ressa Ressa Management LLC

  42 Firwood Rd Unit A, Port Washington, NY 11050
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  $1,175,000

  • 4 Beds
  • 3 Baths

  106 Maple Blvd, Long Beach, NY 11561

  Welcome to this beautifully renovated beachside duplex, thoughtfully redesigned for both comfort and style. Step inside through the custom front door and shared main entrance, where you’re greeted by a bright and airy main level with an open floorplan. The main floor was fully gutted and reimagined to optimize flow and functionality, featuring all-new LED lighting, spray foam insulation, new

  Kristin Altfather Douglas Elliman Real Estate

  106 Maple Blvd, Long Beach, NY 11561
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  /12

  $679,000

  • 3 Beds
  • 2 Baths
  • 1,595 Sq Ft

  44 Waldo Ave, East Rockaway, NY 11518

  Legal Two Family Home in the Heart of East Rockaway. Endless Possibilities! Easily Converted to a Single Family. Main Floor has a Large Eat In Kitchen with Gas Stove and Dining Alcove. Lots of Storage. Spacious Living Rm, Two Bedrooms and Full Bath. Wood Floors Throughout. Enclosed Front Porch. Second Floor has a Full Eat In Kitchen with Gas Stove, Full Bath and One Bedroom. Full Unfinished

  Janet Nicosia Coldwell Banker American Homes

  44 Waldo Ave, East Rockaway, NY 11518
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  /23

  $949,999

  • 4 Beds
  • 2 Baths
  • 2,032 Sq Ft

  94 Shaw Ave, Valley Stream, NY 11580

  Rare Investment Opportunity in Prime Valley Stream Location!This stunning two-family home is a rare find-ideally located in the heart of Valley Stream, one of Long Island's most desirable communities.Just a short walk to top-rated schools, including the prestigious Blue Ribbon award-winning Central High School. Enjoy a vibrant neighborhood filled with parks, shopping, dining, and

  Veronica Quelal Telemundo Realty Corp

  94 Shaw Ave, Valley Stream, NY 11580
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  /45

  $1,125,000

  • 5 Beds
  • 6 Baths
  • 2,980 Sq Ft

  2850 Shore Rd, Seaford, NY 11783

  Welcome to this unique waterfront duplex style legal two-family home in South Seaford. The first unit is a renovated 3-bedroom, 2.5-bath including a primary suite with a full bath, private driveway, updated kitchen and baths, and a deck off the dining room leading to the backyard. The second unit is a tenant occupied well-maintained 2-bedroom, 2.5-bath, also including a primary suite and full

  Danielle Evangelista Douglas Elliman Real Estate

  2850 Shore Rd, Seaford, NY 11783
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  /8

  $629,000

  • 1,755 Sq Ft

  44 Chapman Place, Bay Shore, NY 11706

  Don't miss this rare opportunity to own a well-maintained legal 2-family residence situated in a desirable neighborhood, just minutes from a major shopping center and a beautiful marina. This property offers excellent curb appeal and solid investment potential. Each unit features a private entrance, and the home is in good structural and exterior condition. Perfect for owner-occupants or

  Annie Meneses Realty Connect USA L I Inc

  44 Chapman Place, Bay Shore, NY 11706
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  /21

  $975,000

  • 5 Beds
  • 2 Baths

  403 Jerusalem Ave, Hempstead, NY 11550

  Sitting quietly on Jerusalem Avenue in the town of Hempstead, this two family house is ideally suited to the person who needs the quiet life but has the spirit of entrepreurship to use this great location to work from home in the ideal front office. Welcome to Uniondale. If you are looking for a home for a large family or a quiet welcome to the suburbs, then this is the home for you. With Five

  Samuel George LGP REALTY ASSOCIATES LLC

  403 Jerusalem Ave, Hempstead, NY 11550
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  /37

  $1,250,000

  • 6 Beds
  • 3 Baths
  • 2,415 Sq Ft

  35 East Ave, Glen Cove, NY 11542

  Welcome to 35 East Avenue, Glen Cove—a fully renovated legal 2-family home offering exceptional value and flexibility. Renovated in 2005, this turnkey triplex features central HVAC with two zones and gleaming hardwood floors throughout. The first-floor unit offers two bedrooms, one full bath, an eat-in kitchen with a private balcony leading to the backyard, in-unit washer/dryer, spacious living

  Nicholas Evangelista NY Space Finders Inc

  35 East Ave, Glen Cove, NY 11542
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  /4

  $849,000

  • 4 Beds
  • 2 Baths
  • 1,650 Sq Ft

  401 Merrick Rd, Rockville Centre, NY 11570

  Great home in the Incorporated village of Rockville Centre, Rockville Centre Schools .First floor has 2 bedrooms, newer kitchen, updated bathroom, hardwood floors, living room dining room combo with fireplace. Access to basement for storage. Second floor has Eat in kitchen, two bedrooms, walk up attic for storage.There is an extra large fenced in paved yard in the back of the home. There is

  Jill Dell’Unto Douglas Elliman Real Estate

  401 Merrick Rd, Rockville Centre, NY 11570
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  /13

  $874,999

  • 3 Beds
  • 2 Baths
  • 1,174 Sq Ft

  221 Lincoln Ave, Mineola, NY 11501

  Prime Two-Family Investment in Mineola’s Presidential SectionThis legal two-family home combines location, income stability, and long-term growth potential — making it an exceptional choice for investors, 1031 exchange buyers, multi-generational households, or owner-occupants. Situated just minutes from the LIRR, NYU Langone Hospital, shopping, dining, and major highways, it offers both

  Sandi Polinsky Goldilocks Real Estate

  221 Lincoln Ave, Mineola, NY 11501
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  /37

  $2,999,000

  • 4 Baths
  • 3,572 Sq Ft

  18 N Shore Rd, Montauk, NY 11954

  A RARE OPPORTUNITY TO OWN a one-of-a-kind, Multi-Family, Commercial/Residential property in beautiful Montauk! The property comprises 5 Cottages, a Main House with two separate apartments, as well as two accessory structures, all situated on a 1 acre parcel. Low Taxes! In addition, It is adjacent to the Lee E. Koppelman Nature Preserve, where one can enjoy 777 acres of untouched forest, and a

  Viviana Smith Douglas Elliman Real Estate

  18 N Shore Rd, Montauk, NY 11954
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  /18

  $1,199,000

  • 9 Beds
  • 4 Baths
  • 3,200 Sq Ft

  121 Rose Dr, Ronkonkoma, NY 11779

  3-unit multi-family apartment house plus cottage with water views of Lake Ronkonkoma. Built on a .45 acre parcel, there is ample on-site parking. All tenants are separately metered for gas & electric, and they have private and shared outdoor space. This property is located in the Connetquot Central School District, and is in close proximity to the Long Island Rail Road Ronkonkoma station and the

  Mark Walsh SELECT REAL EQUITY ADVISORS LLC

  121 Rose Dr, Ronkonkoma, NY 11779
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  /26

  $2,999,999

  139 Bayview Ave, Northport, NY 11768

  IMPROVED PRICING!! Motivated Seller, Renovated in 2019 with new vinyl siding, roof, gutters and windows. Located on municipal sewers, this is a waterfront property with a permanent dock and floating dock. Tenants are all separately metered for electric, and the steam boiler was replaced in 2025. All tenants have waterviews and dock access. Property has a 2 car garage with lower level storage

  Mark Walsh SELECT REAL EQUITY ADVISORS LLC

  139 Bayview Ave, Northport, NY 11768
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  /36

  $2,845,000

  • 10 Beds
  • 7 Baths
  • 3,750 Sq Ft

  73 North Rd, Hampton Bays, NY 11946

  Experience a rare offering in the Hamptons -- a turnkey compound of four detached residences nestled on a generous .6-acre parcel moments from coveted Peconic Bay beach access. This well-maintained property presents versatile investment potential as a year-round rental portfolio, a boutique bed & breakfast, or a generational compound. Situated east of the Shinnecock Canal, these residences are

  Lylla Carter Saunders & Associates

  73 North Rd, Hampton Bays, NY 11946

Showing Results 41 - 80, Page 2 of 4