Boulder County CO Multifamily Homes & Duplexes for Sale

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  /34

  $650,000

  • 3 Beds
  • 3 Baths
  • 2,207 Sq Ft

  951 Vetch Cir, Lafayette, CO 80026

  PRICE SLASHED- FOR A LEGAL DUPLEX!! Charming Lafayette 2-Story with Legal ADU - Income Potential!Charming 2307 sq ft home (built 1983) on a quiet street in Lafayette, featuring a legal 1-bed/1-bath ADU in the walk-out basement with private entrance. Main home offers 2 beds, 2 baths, light-filled living space, hardwood floors, updated kitchen, new AC and spacious backyard. Perfect for multi-gen

  

  Clare Gleason

  eXp Realty LLC

  (720) 679-7082

  951 Vetch Cir, Lafayette, CO 80026
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  /8

  $820,000

  • 7 Beds
  • 4 Baths
  • 3,186 Sq Ft

  832 S Bowen St, Longmont, CO 80501

  1% of Loan Value Lender Credit Offered to the buyer with preferred lender. Use for closing costs, pre-paids or buy down the rate. Fully occupied 4 unit with long time tenants. 3 units have 2 bedrooms and 1 bath. 1 unit has 1 bedroom and 1 bathroom. All units have a large living room and eat in kitchen. 4+off road parking spaced. Refrigerators, Stoves and Hot water heat , Community laundry room .

  

  Belinda Hanke

  Equity Colorado Real Estate

  (720) 821-1373

  

  832 S Bowen St, Longmont, CO 80501
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  /50

  $1,900,000

  • 5 Beds
  • 3 Baths
  • 3,051 Sq Ft

  711 Alpine Ave, Boulder, CO 80304

  Welcome to 711 Alpine Avenue in beautiful Boulder, Colorado. This rental property spans 3051 square feet and has been thoughtfully divided into three separate units. Two of the units feature two bedrooms and one bathroom each, while the third unit is a one-bedroom, one-bath. All three are currently rented, which means immediate income potential and a strong investment opportunity. What really

  Amanda Lovato Lovato Properties

  711 Alpine Ave, Boulder, CO 80304
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  /26

  $519,000

  • 5 Beds
  • 4 Baths
  • 3,197 Sq Ft

  1147 Emery St, Longmont, CO 80501

  This is a great pre-inpspected duplex ready for a new owner. New roof installed in 2018 and 1 new deck installed recently. One side there & 3 good size bedrooms and the other side has 2 large size bedrooms. Both sides of this duplex have fresh intertior paint. This one is great for a house hacker who wants to live in one side and lease out the other side or an investor who plans to lease both

  Ken Allen Milestone Real Estate Inc

  1147 Emery St, Longmont, CO 80501
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  /20

  $515,000

  • 4 Beds
  • 2 Baths
  • 1,725 Sq Ft

  24 Cedar Ct, Longmont, CO 80503

  Come check out this brick Turn-key income producing duplex in popular area near Twin Peaks Golf Course, Safeway, schools, trails and parks. Rented for 5 years since owner purchased and low overhead. The tenants pay all utilities. This well maintained duplex features two separate 2 bed / 1 bath units with private entrances, full kitchens and individual utilities. Both units are currently rented

  Tina Stott Growth Asset Management Executives

  

  24 Cedar Ct, Longmont, CO 80503
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  /50

  $1,600,000

  • 8 Beds
  • 3 Baths
  • 3,302 Sq Ft

  1828 Pine St, Boulder, CO 80302

  Nestled in the heart of Boulder's charming Whittier neighborhood, this beautifully maintained triplex is located just two blocks from Pearl Street, offering an unbeatable downtown Boulder experience. Built in 1905, this property brims with character and charm, providing a unique opportunity for both investors and homeowners alike.The triplex consists of three distinct units: two units with 3

  Jennifer Burke Compass - Boulder

  1828 Pine St, Boulder, CO 80302
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  /15

  $500,000

  • 4 Beds
  • 2 Baths
  • 1,836 Sq Ft

  1208 S Coffman St, Longmont, CO 80501

  Turnkey Duplex in Southmoor Park - Ideal Investment or House Hack Opportunity! Welcome to this well-maintained 4-bedroom, 2-bathroom duplex nestled in the desirable Southmoor Park neighborhood of Longmont, CO. With just under 2,000 square feet of finished living space, this property features two separate 2 bed / 1 bath units, each with private entrances, full kitchens, and individual utilities -

  Conor O'Hanlon St Vrain Realty LLC

  1208 S Coffman St, Longmont, CO 80501
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  /24

  $849,000

  • 9 Beds
  • 4 Baths
  • 3,928 Sq Ft

  1005 Harmon Place, Longmont, CO 80501

  Excellent income-producing duplex in Longmont with established tenants and dependable rental history. Both units are leased through 2026, generating $63,480 in annual gross rent. Current performance delivers a ~6.1% cap rate at list price $849,000, offering reliable cash flow from day one.Unit 1007 offers a spacious 5-bedroom, 2-bath layout, while Unit 1005 includes 4 bedrooms and 2

  Nathan VanCamp Sidekick Realty

  

  1005 Harmon Place, Longmont, CO 80501
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  /8

  $460,000

  • 1,768 Sq Ft

  146 E Saint Clair Ave Unit 148, Longmont, CO 80504

  Discover an excellent investment or living opportunity with this charming duplex in Longmont, Colorado. Each unit features 2-bedrooms and 1-full bathroom, ensuring a practical and comfortable setup for residents. Off-street parking adds convenience, making everyday life easier. Located just a few minutes drive to downtown Longmont, you'll have quick access to vibrant shops, restaurants, and local

  Wade Arnold The Colorado Group

  146 E Saint Clair Ave Unit 148, Longmont, CO 80504
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  /6

  $2,100,000

  • 6 Beds
  • 4 Baths
  • 2,526 Sq Ft

  2512 Mapleton Ave, Boulder, CO 80304

  Great investment property - fully leased Duplex- tenants are already in place and rented into the month of August 2026! Present Gross Operating Income of $83,160. Built 1910. Effective year built 1990. Unit A sports classic charm w/ High Ceilings. Ideally located on Large Corner Lot- Folsom & Mapleton. Sun-Drenched Spacious Living Area w/ Bay Windows. Total 6 Bed. 3 Bed/2 Bath unit in front with

  Cheryl Shatz RE/MAX Alliance-Boulder

  2512 Mapleton Ave, Boulder, CO 80304
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  /22

  $1,380,000

  • 6 Beds
  • 4 Baths
  • 1,890 Sq Ft

  2545 Pine St, Boulder, CO 80302

  Discover this well-maintained side-by-side duplex in a prime location. Each unit offers 3 spacious bedrooms, 2 baths, and an open, light-filled floor plan designed for comfort and functionality. Enjoy outdoor living with a large backyard, plus the convenience of a 2-car detached garage, oversized storage shed, and ample parking. Unbeatable location with easy access to CU Boulder, Pearl Street

  Jennifer Crow RE/MAX Professionals Ken Caryl

  2545 Pine St, Boulder, CO 80302
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  /26

  $1,300,000

  • 8 Beds
  • 4 Baths
  • 3,510 Sq Ft

  3160 Folsom St, Boulder, CO 80304

  Prime Central Boulder investment! Unlock a golden opportunity in the heart of Boulder with this classic 1967 side-by-side brick duplex. Perfectly situated in Central Boulder, the property delivers both strong rental income and future potential. Each unit is currently leased at $3,000/month, and the detached garage provides an additional $480/month - with room to increase rents over time. Inside,

  Jed MacArthur RE/MAX of Boulder, Inc

  3160 Folsom St, Boulder, CO 80304
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  /39

  $1,129,000 Open Sat 11AM - 3PM

  • 4 Beds
  • 4 Baths
  • 2,070 Sq Ft

  4755 Qualla Dr, Boulder, CO 80303

  Experience the best of Boulder living—and a prime investment opportunity—with this beautifully updated duplex townhome just minute from CU Boulder Campus. With no HOA fees, a freshly renovated kitchen, and a fully fenced oversized backyard, this property combines style, comfort, and convenience with immediate passive income potential. Currently tenant-occupied, it provides an attractive

  Jordan Schwartz Engel & Volkers Denver

  

  4755 Qualla Dr, Boulder, CO 80303
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  /31

  $725,000

  • 6 Beds
  • 4 Baths
  • 2,912 Sq Ft

  200 S Carr Ave, Lafayette, CO 80026

  Positioned on the edge of sought-after Old Town Lafayette, this spacious duplex presents an exceptional investment opportunity with proven performance and future upside. Offering six bedrooms and four baths across two generous units, this property has maintained full occupancy for over five years and currently operates at a strong 6.8% cap rate. Each unit lives like a single-family home with

  Rachel Weinberg milehimodern - Boulder

  200 S Carr Ave, Lafayette, CO 80026
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  /48

  $720,000

  • 4 Beds
  • 4 Baths
  • 2,200 Sq Ft

  1421 Spruce Ave, Longmont, CO 80501

  An exceptional investment opportunity awaits in the heart of Old Town Longmont in the historic Bohn Farm neighborhood. Perfectly positioned on a quarter-acre corner lot on a quiet, tree-line street with historic Victorians. This turnkey duplex offers spacious units with 2 bedrooms and 1.5 baths on each side, in two-story layouts with walk-out basements. The perfect opportunity for a HOUSE HACK:

  Rachel Weinberg milehimodern - Boulder

  1421 Spruce Ave, Longmont, CO 80501
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  /15

  $727,000

  • 7 Beds
  • 4 Baths
  • 2,244 Sq Ft

  3806 Findlay Ln, Longmont, CO 80503

  A GREAT INCOME PROPERTY! NO HOA! SHOWING 9/20/25 at 9 am. Back on the market lower price. Duplex in West Longmont with Main floor Master Bedrooms and bath. . A wonderful location Always occupied. Has 2 bed and 2 bath on main level plus 2 large additional rooms upstairs NOT INCLUDED IN THE ASSESSORS SQUARE FOOTAGE, Great for an owner with an additional income unit next door. The other unit has 2

  Selwyn Goldstein Selwyn Goldstein

  3806 Findlay Ln, Longmont, CO 80503
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  /31

  $1,250,000

  • 6 Beds
  • 3 Baths
  • 3,216 Sq Ft

  104 2nd Ave, Superior, CO 80027

  Two homes next to each other, one low price! 104 2nd Ave and 110 Coal Creek, perfect multigenerational set up, many processibility's for investors or owner occupancy, both homes need extensive work, this is a great fixer upper opportunity, property is sold in as is where is condition, right across from Asti Park, and two blocks from Founders Park. Walking distance to Whole food, restaurants and

  Wilhelm Estes Berkshire Hathaway HomeServices Rocky Mountain, Realtors-Boulder

  104 2nd Ave, Superior, CO 80027
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  /32

  $3,200,000

  • 12 Beds
  • 8 Baths
  • 4,280 Sq Ft

  2535 Spruce St, Boulder, CO 80302

  Discover a rare multi-family opportunity in the heart of Boulder! This well-maintained fourplex offers four spacious 3-bedroom, 1.5-bathroom units, each thoughtfully designed for comfortable living. With generous floorplans, private entrances, and functional layouts, each unit is ideal for long-term tenants or potential owner-occupancy.Perfectly situated just minutes from Pearl Street,

  Shelby Foster ERA New Age

  

  2535 Spruce St, Boulder, CO 80302
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  /19

  $4,600,000

  • 21 Beds
  • 9 Baths
  • 7,400 Sq Ft

  1631 19th St, Boulder, CO 80302

  Located just steps from Pearl Street and CU Boulder, 1631 19th St presents a rare chance to own a stabilized 7-unit multifamily property in one of Boulder's most sought-after rental corridors. This income-producing asset features 21 bedrooms and 10 bathrooms across 7,400 square feet, offering an attractive unit mix: (2) 2BR/1BA, (3) 3BR/1BA, and (2) 4BR/2BA layouts. With $300K in recent capital

  Benjamin Swan Live West Realty

  1631 19th St, Boulder, CO 80302
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  /37

  $2,885,000

  • 4 Beds
  • 4 Baths
  • 3,496 Sq Ft

  2130 11th St, Boulder, CO 80302

  Tremendous investment opportunity just one block from the Pearl Street Mall. This well-maintained 4-plex features three 1-bedroom units and one studio, each with a full kitchen. The spacious top-floor unit boasts a living room, bedroom, and kitchen with unparalleled views. On the main level, a large 1-bedroom residence welcomes you via a charming covered front porch showcasing iconic Flatiron

  The Bernardi Group Coldwell Banker Realty-Boulder

  2130 11th St, Boulder, CO 80302
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  /40

  $529,000

  • 4 Beds
  • 2 Baths
  • 1,680 Sq Ft

  22 Emery Way, Longmont, CO 80501

  Brand new roof! Prime opportunity to own a solid brick duplex in the heart of Longmont, perfect for generating rental income or exploring future possibilities. Whether you live in one unit and lease the other or rent both, this setup offers flexibility and long-term value. Tucked at the end of a quiet cul-de-sac, this property is just blocks away from Main Street's shopping, dining, and local

  Rob Kittle Kittle Real Estate

  22 Emery Way, Longmont, CO 80501
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  /25

  $925,000

  • 4 Beds
  • 3 Baths
  • 2,284 Sq Ft

  3000 Broadway St Unit 10, Boulder, CO 80304

  Exceptional Investment Opportunity in a Prime Location! Here's your chance to own two versatile condos on one title -perfect for investors, multi-generational living, or a live-and-rent setup. Unit #11 (top-level) offers three levels of spacious living with 3 bedrooms and 2 full baths. The large living room, centered around a wood-burning fireplace, flows into the dining area with direct access

  Jennifer Crow RE/MAX Professionals

  

  3000 Broadway St Unit 10, Boulder, CO 80304
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  /28

  $250,000

  • 1 Bed
  • 1 Bath
  • 786 Sq Ft

  3035 Oneal Pkwy Unit T35, Boulder, CO 80301

  **Charming 1-Bedroom Condominium in North Boulder**Discover this spacious and light-filled two-story, one-bedroom, one-bath condominium located in the beautiful North Boulder area. The oversized bedroom on the second floor, with no neighbors above, ensures a peaceful retreat. The main level features a cozy living area highlighted by a stunning stone fireplace with an insert, providing warmth and

  Scott Hurst RE/MAX Alliance-Boulder

  3035 Oneal Pkwy Unit T35, Boulder, CO 80301
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  /37

  $3,050,000

  • 3,582 Sq Ft

  1511 Broadway St, Boulder, CO 80302

  Back on the market due to buyer financing - not due to any fault of the seller or the property. This rare investment opportunity on Boulder's coveted Hill is listed well below its recent $3.46 million appraisal. An exceptional performer with 7.09 CAP rate and 13.09 GRM, the property has a flawless occupancy record and secured rental income through August 2026. The property is ideally positioned

  Stacy Robinson Robinson Investment Co., Inc.

  1511 Broadway St, Boulder, CO 80302
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  /25

  $925,000

  • 4 Beds
  • 3 Baths
  • 2,284 Sq Ft

  3000 Broadway St Unit 10 & 11, Boulder, CO 80304

  Exceptional Investment Opportunity in a Prime Location! Here's your chance to own two versatile condos on one title -perfect for investors, multi-generational living, or a live-and-rent setup. Unit #11 (top-level) offers three levels of spacious living with 3 bedrooms and 2 full baths. The large living room, centered around a wood-burning fireplace, flows into the dining area with direct access

  Jennifer Crow RE/MAX Professionals Ken Caryl

  3000 Broadway St Unit 10 & 11, Boulder, CO 80304
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  /10

  $415,000

  • 4 Beds
  • 4 Baths
  • 2,632 Sq Ft

  1413 Centennial Dr, Longmont, CO 80501

  This side-by-side duplex is a rare opportunity for an investor looking to build sweat equity. Each unit features 2 bedrooms, 1.5 bathrooms, and convenient in-unit washer and dryer hookups. The property includes a two-car garage, mature landscaping, and sits on a generously sized lot. While the property needs work, the potential is undeniable. Renovate both units and generate solid rental income,

  Aria Khosravi Aria Khosravi

  

  1413 Centennial Dr, Longmont, CO 80501
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  /12

  $498,000

  • 5 Beds
  • 2 Baths
  • 798 Sq Ft

  1262 Lanyon Ln, Longmont, CO 80503

  Incredible opportunity for investors and homebuyers alike! This spacious 5-bedroom, 2-bathroom home in Longmont offers endless potential—whether you're looking for a high-performing income property or the perfect forever home. For investors, this property offers strong rental income potential and a layout that is ideal for tenants. For homebuyers, it offers ample space, multiple living areas, and

  Art Gonzalez ARI Real Estate & Investments LLC

  

  1262 Lanyon Ln, Longmont, CO 80503
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  /8

  $5,250,000

  • 13 Beds
  • 9 Baths
  • 3,206 Sq Ft

  1037 12th St, Boulder, CO 80302

  CAN BE PURCHASED TOGETHER OR SEPARATELY WITH 1110-1116 13TH STREET, 2005 GOSS STREET, & 3460 MADISON STREET.Cushman & Wakefield is proud to present The University Hill Portfolio, a premier investment opportunity featuring two meticulously selected commercial properties in the highly sought-after University Hill neighborhood of Boulder, Colorado. This portfolio provides investors with the

  Nic Polaski Cushman & Wakefield

  

  1037 12th St, Boulder, CO 80302
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  /14

  $3,000,000

  • 8 Beds
  • 4 Baths
  • 3,247 Sq Ft

  508 Pearl St, Boulder, CO 80302

  CBRE is pleased to present 508 Pearl St, a four-unit apartment building in Boulder, Colorado. The property was constructed in 1876 and features four two-bedroom, one-bathroom units with in-unit laundry hookups. Approximately $500k in exterior and interior renovations have been completed. Three of the four units have dishwashers, and the building has been completely renovated inside and out. The

  Charlie Mitelhaus CBRE, Inc.

  

  508 Pearl St, Boulder, CO 80302
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  /9

  $5,200,000

  • 12 Beds
  • 12 Baths
  • 7,292 Sq Ft

  3460 Madison Ave, Boulder, CO 80303

  Please contact agent for information

  Brian Mannlein Cushman Wakefield

  3460 Madison Ave, Boulder, CO 80303
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  /25

  $1,900,000

  • 6 Beds
  • 6 Baths
  • 3,168 Sq Ft

  3600 Hayden Place, Boulder, CO 80301

  Rare 6 unit multi-family property for sale in North East Boulder. These 6 one bedroom units have been very well maintained. This investment property also includes a shared coin operated laundry room. Great location adjacent to Howard Hueston Park. This apartment building is nearby amenities including walking trails and easy access to public transportation.

  Kate Guden RPM of the Rockies

  3600 Hayden Place, Boulder, CO 80301
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  /35

  $3,100,000

  • 10 Beds
  • 4 Baths
  • 2,880 Sq Ft

  879 19th St Unit 881, Boulder, CO 80302

  Turn-key and teeming with potential! This Prime investment property sits right on the edge of CU's buzzing campus, nestled in one of University Hill's most coveted blocks. With smart upgrades, strong tenant demand, and solid rental returns, it's a ready-to-roll opportunity for your next portfolio win! RHL-00995550 Duplex + 4 Rooming Units. 879 is a three bed / 1 bath carriage house with

  Heidi Schamber Market Real Estate

  879 19th St Unit 881, Boulder, CO 80302
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  /11

  $2,200,000

  • 1,072 Sq Ft

  1221 S Main St, Longmont, CO 80501

  Introducing an exceptional investment opportunity at 1221 S Main St, Longmont, CO 80501. This Founder Operated Ziggi's Coffee location offers a prime spot on the bustling South Main Street, with high daily traffic of over 27,000 vehicles. Boasting a 15-year Absolute NNN lease, this property ensures a hassle-free investment with a reliable tenant. With a purchase price of $2,200,000 and a solid

  Annah Moore CCIM CBRE Inc

  1221 S Main St, Longmont, CO 80501
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  /22

  $1,645,000

  • 5 Beds
  • 2 Baths
  • 1,593 Sq Ft

  2221 Columbine Ave, Boulder, CO 80302

  BRAND NEW FULLY REMODELED INVESTMENT PROPERTY. ON THE HILL, ONLY 2 BLOCKS FROM CU. BEST CAP RATE IN TOWN! House RENTED at $8,750/M thru 7/31/25; Garage for $700/M. Now a 5-Bedroom, 2-Bathroom contemporary home, designed specifically for student living, the new layout maximizes space and functionality, creating the perfect blend of comfort and convenience. Excellent location right by CU, The Hill

  Michael Rothschild Live West Realty

  2221 Columbine Ave, Boulder, CO 80302
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  /36

  $1,249,000

  • 4 Beds
  • 3 Baths
  • 1,592 Sq Ft

  1625 16th St, Boulder, CO 80302

  Fantastic as a pure investment property or a single family home with legal ADU offering additional income or a place for your nanny/au pair. Many updates and modern finishes throughout. Deep soaker tub in main unit, shower w/ Euro Glass door, subway tile in both main unit baths. Main unit kitchen features all SS appliances gas range w/ convection oven, wall mounted microwave, french door

  Brandon Thomas JPAR Modern Real Estate

  1625 16th St, Boulder, CO 80302
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  /37

  $3,200,000

  • 6 Beds
  • 3 Baths
  • 2,589 Sq Ft

  613 Pine St, Boulder, CO 80302

  Charming Triplex on Historic Mapleton Hill - 613 Pine Street, Boulder Located in Boulder's coveted Mapleton Hill neighborhood, 613 Pine Street offers a rare opportunity to own a beautifully maintained triplex in a prime location. Enjoy easy access to hiking trails, shopping, dining, and all the amenities Boulder has to offer. This property features spacious, light-filled units with a blend of

  Jung Lindas Slifer Smith and Frampton - Front Range

  

  613 Pine St, Boulder, CO 80302
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  /13

  $5,400,000

  • 7 Beds
  • 5 Baths
  • 9,789 Sq Ft

  1110 13th St, Boulder, CO 80302

  A mixed-use asset comprising two fully leased commercial spaces occupied by beloved community staples, along with four fully renovated residential units above. Both the retail and residential spaces generate strong NNN and apartment rents while being located on the historical 13th Street retail district. This exceptional portfolio is strategically positioned for long-term growth and strong

  Brian Mannlein Cushman Wakefield

  1110 13th St, Boulder, CO 80302
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  /5

  $5,200,000

  • 13 Beds
  • 9 Baths
  • 3,800 Sq Ft

  1037 12th St, Boulder, CO 80302

  A 13-bed student housing property situated in the heart of The Hill, offering strong rental demand, consistent cash flow, and close proximity to the University of Colorado and downtown Boulder.

  Brian Mannlein Cushman Wakefield

  1037 12th St, Boulder, CO 80302
• 

  

  /26

  $1,297,000

  • 3 Beds
  • 2 Baths
  • 1,552 Sq Ft

  1265 Balsam Ave, Boulder, CO 80304

  Introducing a rare gem, offering a multitude of opportunities! Perfectly situated on a prominent corner lot in the heart of Boulder, this property presents ownership options to develop, rent, invest or live in. For developers looking for a turnkey acquisition, this is fully entitled and PERMIT READY with architectural drawings complete from the renowned Watt Architecture, and potential for

  Jay Hebb The Agency - Boulder

  1265 Balsam Ave, Boulder, CO 80304
• 

  

  /3

  $3,300,000

  • 10 Beds
  • 8 Baths
  • 4,314 Sq Ft

  1723 15th St, Boulder, CO 80302

  Beautiful, Downtown Boulder, 7 unit property! Originally built in 1920 with an effective age of 1975. One four bedroom, two bath home in front and three one bedroom one bath/three studio units in the back of the property. Amazing location only blocks from CU, Boulder Creek, Boulder Canyon, The Hill, and Pearl Street. Gorgeous courtyard, off street parking. Amazingly Maintained, renovated and runs

  Bob Chambers RE/MAX Alliance-Boulder

  1723 15th St, Boulder, CO 80302

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