Boulder Homes with Unfinished Basement

Welcome to Boulder, Colorado – a vibrant city nestled against the stunning backdrop of the Rocky Mountains. Known for its breathtaking natural beauty, rich cultural scene, and a strong sense of community, Boulder is an ideal destination for outdoor enthusiasts, families, and professionals alike. With an elevation of over 5,000 feet, residents enjoy a mild climate, abundant sunshine, and access to miles of hiking and biking trails, including the famous Flatirons and Chautauqua Park.

Boulder is not just about nature; it’s also a hub for innovation and education, home to the prestigious University of Colorado Boulder. The city boasts a thriving economy, diverse dining experiences, and an array of local shops that contribute to its unique charm. Whether you’re exploring the vibrant Pearl Street Mall or enjoying a local brew at one of the many craft breweries, Boulder offers a lifestyle that is both active and enriching.

For those looking to make Boulder their home, consider the appeal of houses with unfinished basements. These properties offer a blank canvas, allowing you to customize the space to fit your lifestyle and needs. Whether you envision a cozy family room, a home gym, or an additional guest suite, the possibilities are endless. Unfinished basements not only provide extra square footage but also enhance the value of your home in this desirable market.

Embrace the Boulder lifestyle and discover the potential of homes with unfinished basements – where your vision can come to life in one of Colorado’s most captivating cities!

Newest Boulder Homes with Unfinished Basement

$2,750,000

4 Beds ⋅ 3 Baths ⋅ IR1068753 MLS

Set at the base of Flagstaff Mountain in one of Boulder's most desirable west-side neighborhoods, 422 Arapahoe Avenue is a completely renovated craftsman bungalow just blocks from Eben G Fine Park, the Boulder Creek Path, and the trails and open space that define this part of the city, with downtown Boulder only minutes away. Rebuilt from the studs, the home pairs its original character, including a covered front porch and gleaming wood floors, with new mechanical systems, wiring, plumbing, roof, and windows for lasting peace of mind. The kitchen has been finished with quartz countertops, custom cabinetry, peninsula seating, and a full Thermador appliance suite, opening easily to a dining area and a living room centered on a wood-burning fireplace. French doors lead out to a south-facing flagstone patio framed by native plantings, extending the main level into the backyard. Three bedrooms and three bathrooms are arranged across 1,432 finished square feet, plus a dedicated office for working from home. Two upstairs bedrooms share a spa-like bathroom finished in designer tile and polished chrome fixtures. Above the two-car garage, a newly built 515-square-foot studio with its own living room, bedroom, and bathroom adds flexibility for guests, a home gym, or a creative workspace, all set apart from the main house. The professionally landscaped backyard includes stone pathways, layered gardens, and multiple terraces for entertaining or spending time outside, with Flagstaff views visible throughout the property and mature trees lining the surrounding streets. With hiking trails at the end of the block, the Boulder Creek Path close by for running and biking, and downtown Boulder's shops, restaurants, and Pearl Street easily accessible on foot or by bike, 422 Arapahoe Avenue offers a move-in ready home in one of west Boulder's most established, close-knit, and sought-after settings.

422 Arapahoe Ave, Boulder

Courtesy of Compass - Boulder . 7204807650

$800,000

3 Beds ⋅ 2 Baths ⋅ 5453607 MLS

MUST-WATCH VIDEO VOICEOVER WALKING TOUR! Click the Virtual Tour link or type the property address into YouTube to find the video and see a room-by-room walkthrough of the floor plan, features, and current condition. Classic 1973 ranch in Boulder's Country Club Park with desirable one-level living, a large lot, separate living and family rooms, and a basement offering excellent storage and future-use potential. The floor plan is a real strength, while the home offers an opportunity to update the kitchen, baths, flooring, landscaping, and finishes to your taste. Newer furnace and newer air-conditioning condenser are valuable improvements, and the roof shingles appear to be in good condition based on a ground-level visual observation. The price reflects the updating needed. Estate-owned and sold AS-IS, WHERE-IS. A quality-built Boulder home with space, character, and renovation potential in an established neighborhood.

733 Cypress Dr, Boulder

Courtesy of Urban Companies . Jim@HomeReferralTeam.Net,303-588-7000

$589,000

3 Beds ⋅ 2 Baths ⋅ IR1068520 MLS

Experience the best of Boulder living in this stylishly updated townhome surrounded by natural beauty. The fabulous modern kitchen makes a memorable impression with striking cabinetry, quartz countertops, and a beautiful backsplash. Hardwood flooring flows throughout the main level, while nicely updated bathrooms add a fresh, contemporary feel. Step outside onto the beautiful Trex deck and enjoy the peaceful setting, shared HOA green space, serene pond, abundant wildlife, and seasonal mountain views. The unfinished basement with rough in offers excellent storage and exciting potential for future living space, a home gym, office, or recreation room. 2 reserved parking spaces. Ideally located near Boulder's renowned trails, parks, shopping, dining, public transportation, and Pearl Street, this home perfectly blends tranquility, style, and convenience.

3164 29th St, Boulder

Courtesy of RE/MAX of Boulder, Inc . 3034415642

$1,495,000

3 Beds ⋅ 3 Baths ⋅ IR1068496 MLS

NEW PRICE! Downtown charm meets modern comfort in this beautifully maintained turn-of-the-century bungalow. Cherished by the same family for more than 40 years, this home showcases timeless character with hardwood floors, 9-foot ceilings, original trim and baseboards, and exposed brick accents throughout. The thoughtfully designed layout includes a private primary suite on the upper level and a spacious family room addition at the rear of the home, providing flexibility for both everyday living and entertaining. Ideally located just minutes from the vibrant Pearl Street district, you'll enjoy easy access to cafes, wine bars, award-winning dining, shopping, the Boulder Creek path, the Farmers Market, and countless downtown amenities. Outside, the fully fenced backyard offers a peaceful retreat with a brick patio, mature landscaping, and privacy fencing. A welcoming front courtyard with a flagstone patio creates additional outdoor living space. A rare BONUS is the detached, finished studio complete with a 3/4 bathroom-perfect for a home office, art studio, guest space, fitness room, or creative retreat. Ample off-street parking in the driveway to the north. A unique opportunity to own a character-filled downtown home in an exceptional location.

2238 16th St, Boulder

Courtesy of milehimodern - Boulder . 3034890309

$3,125,000

3 Beds ⋅ 3 Baths ⋅ IR1065653 MLS

Introducing an extraordinary property nestled along the pristine Boulder Creek, offering an unrivaled location that epitomizes Boulder living and providing easy walkability to Boulder's vibrant downtown lifestyle, West Pearl, Chautauqua, and the renowned Evan G Fine Park. Additionally, outdoor enthusiasts will revel in the proximity to a world-class playground of trails, hiking, biking, and climbing. Situated on coveted west Arapahoe, this home showcases quintessential Boulder Flatiron views to the south, as well as breathtaking vistas of Boulder Creek, Red Rocks, and Mount Sanitas to the north. As you step inside, you will be greeted by an open flow design that seamlessly blends intimate spaces with gracious and inviting rooms. The exquisite finishes throughout add a touch of luxury, making it the perfect space for entertaining guests. A highlight of this property is the seamless indoor-outdoor living experience it offers. French doors lead to an outdoor oasis, where lush greenery and majestic trees surround the outdoor dining area, French gardens and private patio overlooking Boulder Creek. The architectural detailing includes stunning high-end millwork and moldings, hardwood floors, custom chandeliers, exposed brick and divided light windows. The chef's gourmet kitchen is a dream come true, featuring the flagship Viking 6-burner range and commercial hood, along with an expansive butcher block center prep island. The 4-seat breakfast bar and walk-in pantry provide ample space for storage and casual dining. The primary suite is a haven of tranquility and luxury. With a separate sitting area boasting vaulted ceilings, a 2-sided fireplace, a spa plus steam shower and dual walk-in closets, it is a retreat within your home. The basement is a true gem, featuring a 700+ bottle fully conditioned wine cellar. With 9' ceilings, the basement offers ample room to expand and create your own desired space, whether it is additional bedrooms, a home theater or even a private gym.

435 Arapahoe Ave, Boulder

Courtesy of Live West Realty . 3039957038

$4,995,000

5 Beds ⋅ 5 Baths ⋅ IR1067083 MLS

Country setting in the City! Perfectly placed on an estate-sized lot, highly desired premiere Kalmia location is a vision of exquisite craftsmanship & thoughtful design details throughout. Rebuilt from foundation up in 2000, extensive renovation in 2019, this residence is situated just a stones throw from Mt. Sanitas trails & Wonderland trails & bike paths, inspiring a serene setting w/spectacular views of the Flatirons & Foothills. The gorgeous chef's kitchen features a 42-inch Wolf Range w/a custom hood, Waterworks living brass faucets & herringbone tile backsplash in Carrara marble and a vast island w/waterfall sides. A 13-foot telescoping door opens to a patio for seamless flow for entertaining in a private backyard complete w/perennial gardens and a Bocce court. Enjoy relaxing and entertaining in the living, dining & game rooms divided by a double-sided fireplace. Retreat to the second level hosting 4 sizable bedrooms, 3 baths, laundry room , storage room and a deck w/ a hot tub. The third floor offers a flex space for a home office or bonus play room. A separate living space above a detached 4-car garage features a 3/4 bath, bedroom, living room and kitchenette - the perfect escape for guests, nanny or family members. Revel in seamless access to neighborhood schools, Lucky's Market, Pearl Street Mall and Boulder amenities. Country park like setting in the City.

497 Kalmia Ave, Boulder

Courtesy of milehimodern - Boulder . 3034890309

$729,700

3 Beds ⋅ 3 Baths ⋅ IR1061642 MLS

From the moment you walk through the door, this North Boulder townhome feels special, warm, inviting, and thoughtfully designed with a functional open floorplan that lives beautifully. Nestled in a quiet, peaceful setting, the home offers the perfect blend of comfort, style, and convenience.This bright and spacious two story features fresh paint and new carpet for a move-in-ready situation. The living room has a cozy fireplace, providing the perfect gathering space for relaxing evenings. The updated kitchen showcases slab granite countertops, upgraded cabinetry, and modern lighting, seamlessly connecting to the living and dining areas. Perfect for entertaining, the dining room opens directly onto a large private patio, for an easy indoor-outdoor living experience ideal for hosting friends, outdoor dining, or simply enjoying Colorado's beautiful weather. The primary bedroom is complete with a private 3/4 bath featuring upgraded tile, radiant heated floors, generous closet space, and a sunny south-facing balcony overlooking the beautifully maintained HOA gardens, pool, and common areas. An unfinished basement provides plenty of storage space and offers the opportunity to create additional living space, a home office, workout room, or hobby area to suit your needs. Enjoy exceptional outdoor living with both private front and back patios, offering plenty of space for entertaining, gardening, or relaxing in a peaceful setting. Additional features include a covered carport and abundant natural light throughout. Plumbing on the main level for stackable washer/dryer and full size washer dryer in the basement. Ideally located near Boulder's extensive trail system, local shopping, cafes, restaurants, and the vibrant Rayback Collective. Commuting is easy with convenient bus access and a dedicated bike path leading directly to downtown, CU and beyond!

2660 Hawthorne Pl, Boulder

Courtesy of Compass - Boulder . 3034875472

$5,950,000

5 Beds ⋅ 4 Baths ⋅ IR1062359 MLS

One of the most Iconic Homes on Mapleton Hill, the Eastman Reid Collins Home is an historic treasure on a rare 13,802 square foot corner lot. The stunning Tudor Revival style residence has been meticulously maintained by the same owners for 50 years. Now, this classic style home is ready for its next chapter. The appeal of the property is dramatic from the street, highlighted by the timeless brick, stone and stucco exterior details. A spacious covered front entry and porch welcome you to the home and connect to the porte cochere, perfect for arriving guests. Enter into the foyer and you'll immediately feel the warmth and charm of the perfectly designed and preserved woodworking. Both the spacious living and dining rooms have beautiful beamed ceilings, beveled glass, classic original lighting and built-in cabinetry. The living room opens to a delightful sunroom overlooking the back patio and yard. The dining room, with vintage tapestries and sideboard/serving area flows into the kitchen which has been remodeled with custom cherry cabinetry. A breakfast room is next to the kitchen. Upstairs, the central hallway accesses the 5 bedrooms and an upper level sunroom. The layout of the generous size bedrooms allows flexibility for new owner to use as they wish. The primary bedroom opens through french doors to a library/study with built in bookcases and many windows. The hallway connects to a back deck which can easily be enhanced to enjoy the views of the Flatirons. The large attic could be finished if additional space is needed. The lower level of the home is filled with light and includes a cozy family room with fireplace, 587 bottle capacity wine cellar, 3/4 bath and laundry. Outside, the expansive yard and gardens wrap around the home, encircled by a sandstone and brick wall making the entire area secluded and peaceful. In the spring, the many flowering plants and fruit trees come alive and make the yard and private patio a special place to enjoy this unique setting.

604 Mapleton Ave, Boulder

Courtesy of WK Real Estate . 3038983586

$1,399,000

4 Beds ⋅ 3 Baths ⋅ 9671034 MLS

This move-in ready home in Northfield Commons offers a great blend of comfort, style, and location. The main level features an open layout with plenty of natural light, creating a warm and inviting feel throughout. The living room fireplace adds a cozy touch, while the outdoor fireplace just off the dining area makes it easy to enjoy time outside in any season. The kitchen is both functional and spacious, with everything you need for everyday living or entertaining. A main-floor bedroom provides flexibility, perfect for guests, a home office, or whatever suits your needs. Upstairs, the primary suite stands out with its generous size, private balcony with mountain views, large walk-in closet, and a five-piece bathroom. You’ll also find two additional bedrooms connected by a Jack-and-Jill bath, a roomy laundry area, and an extra flex space that works well as an office or lounge. The unfinished basement is a blank slate, ready for you to customize, whether that’s a media room, gym, or additional living space. Recent updates include new hardwood flooring on the stairs and upper level, along with fresh interior paint. The home also includes an oversized two-car garage that has room for a workshop, and easy-care landscaping. Located directly across from Jazmine Park and just minutes from Pearl Street, this home offers quick access to trails, shopping, and dining, all within a short bike ride. A solid option for anyone looking to enjoy the Boulder lifestyle without the hassle of updates or renovations.

3186 Big Horn St, Boulder

Courtesy of The Agency - Denver . shelby.sampson@theagencyre.com,303-913-9573

$1,125,000

3 Beds ⋅ 3 Baths ⋅ IR1068202 MLS

Escape to the tranquility of the foothills in this beautifully architect-designed contemporary home, set on more than 5 acres just 23 minutes above Boulder. Great hiking trails starting at the edge of the property. This immaculate home is thoughtfully designed for both beauty and functionality. The open floor plan is filled with natural light, creating a warm and inviting atmosphere throughout. In the living room, expansive windows frame the peaceful landscape and bring the beauty of the outdoors inside. The spacious kitchen features a breakfast nook and direct access to the expansive brand-new deck, making indoor-outdoor living and entertaining effortless. A separate formal dining room provides an elegant setting for gatherings and special occasions. The private primary suite offers a walk-in closet and a generously sized en-suite bathroom. Two additional bedrooms provide flexibility for family, guests, or work-from-home living, with one currently serving as a comfortable home office. Step outside onto the impressive new deck, where there is plenty of room to entertain, dine al fresco, or simply unwind while taking in the fresh mountain air and peaceful surroundings. The unfinished basement presents an exceptional opportunity to create additional living space tailored to your needs. With 9-foot ceilings, abundant natural light, and direct outdoor access, the space offers tremendous potential to expand the home and add significant value over time. Surrounded by nature yet conveniently close to Boulder, this is a rare opportunity to enjoy the best of foothill living in a thoughtfully designed home with room to grow.

165 Bison Dr, Boulder

Courtesy of RE/MAX of Boulder, Inc . 3038982795

$3,895,000

4 Beds ⋅ 5 Baths ⋅ IR1064840 MLS

Few homes overlook Boulder quite like this one. Set on more than two private acres in desirable Panorama, this partially completed custom residence pairs contemporary architecture with one of Boulder County's most captivating views. The Flatirons, Longs Peak, CU, downtown Boulder, Baseline Reservoir and miles of foothills fill the horizon. The scale is difficult to capture in photographs. Designed inside and out around the views, the home features corner windows, expansive glass, a folding patio door, pass-through kitchen window and layers of decks and terraces. A dramatic private rooftop deck off the upper level provides a remarkable vantage point. The zero-step main floor includes a covered deck, three-sided fireplace, dining area, kitchen with walk-in pantry, private primary wing, two additional en-suite bedrooms and a study. Upstairs, a flexible room with bath and closet may serve as a lounge, office or fourth bedroom. The walkout lower level is planned for a family room, wet bar, recreation space, bath and office or fitness room, with access to covered patios and a backyard with room for a pool, if desired. An oversized three-car garage includes a smaller fourth bay for recreational vehicles, bikes or gear. Designed toward Energy Star V3.1, HERS 0 and DOE Zero Energy Ready Home standards, with high-efficiency systems, Marvin windows, EV charging and planned (12 kW) rooftop solar. Exterior stucco and limestone are being completed. Main and upper levels will be delivered through drywall and tape; the lower level will remain unfinished. After closing, the buyer may hire Coburn to complete the home. Boulder Cty new floor-area rules makes a home of this scale difficult to permit today, adding value to the existing approvals and construction. Photos are artists' renderings incorporating actual photography of the property's views. They are for illustration only and may not precisely depict the completed home, landscaping, finishes or exact view from each location. Thi

7855 Spring Dr, Boulder

Courtesy of Coldwell Banker Realty-Boulder . 3039318080

$2,395,000

5 Beds ⋅ 3 Baths ⋅ IR1061051 MLS

Set on a tree-lined street in Boulder's iconic Mapleton Hill neighborhood, this cherished Queen Anne Victorian comes to market for the first time in over 35 years. It's the kind of block where neighbors wave from front porches, dogs meander down sun-dappled sidewalks, and summer brings neighborhood events like the legendary Mapleton Hill Porchfest - live music drifting through the air, community in full bloom. Pearl Street's world-class dining, shopping, and culture are mere seconds away, and trailheads like Mt. Sanitas are moments from your door. The location is, simply, unmatched. Inside, authentic character that can't be replicated: original hardwood floors, classic doors, and timeless millwork speak to a craftsmanship era long past. This is a rare opportunity for a new steward move right in or bring the vision to restore it to its full, glorious potential. Outside, a lovely fenced yard and expansive patio beckons you to relax long into the evening with friends. Above the garage, a versatile studio opens the door to possibility: home office, music room, creative retreat, or guest suite. 616 Pine is a private oasis in the heart of the city. LIVE BOLDER, LOVE BOULDER!

616 Pine St, Boulder

Courtesy of The Agency - Boulder . 7203941997

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