Duplexes for Sale in Boulder, CO

Situated on an exceptionally large 0.47-acre parcel this is a rare chance to secure one of the larger residential lots in the neighborhood. The size and configuration of the site may also present subdivision potential, The cash flowing duplex offers an investor, builder, or custom home buyer reliable income while submitting plans to the city. Don't miss a beat building your custom home (or two!)

Eric Jacobson Compass - Boulder

Fantastic opportunity to own a beautiful 2 bedroom/2 bathroom duplex on a quiet cul-de-sac in unincorporated Boulder County! Easy walking and bike access to Twin Lakes open space. Walk to Avery Brewing, twin lakes, and Boulder County trails. Brand new interior paint. Enjoy the open views from the large second floor deck. 2 bedrooms upstairs w/ a full bath and an extra large deck off primary

Andrew Hawk Folsom & Co. Real Estate

Live simply in Downtown Boulder! Small duplex just off of Mapleton Hill, this charming investment property pairs historic character with rental income potential, allowing for affordable Downtown living. Live in one side, rent the other, rental income can offset your mortgage by $1,325/ month. A current rental license is in place through June 21, 2026. Unit 900 offers a one-bedroom, one-bath

John McElveen milehimodern - Boulder

NEW PRICE--LAND+FLEXIBILITY IN WHITTIER UNDER $1.2 M. Classic Boulder duplex on a quiet, tree-lined street in the highly sought-after Whittier neighborhood. Properties in this price range are increasingly hard to find in Boulder especially without HOA constraints. Up/down layout with two 2-bedroom, 1-bath units. Walkable to Pearl Street Mall and nearby dining, shopping, and cultural amenities,

Amy Alexander Matrix Real Estate LLC