Single-Family Homes for Sale in Boulder, Colorado

Searching for a luxury single-family home in Boulder? See detached single-family homes for sale in Boulder now. View property descriptions, pricing information, photos and neighborhood information. Schedule a showing online, save your favorite properties or share favorite homes. You can also save a search and share your home search.  Our system makes it easy to see nearby listings, too. Contact a Boulder Luxury Home REALTOR® with questions. You can also search all Boulder Luxury Homes. 

See all luxury single-family homes for sale in Boulder

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Foothills

3776 Orange Lane, Boulder, CO 80304

4Bedroom(s)
3Bathroom(s)
2Parking(s)
31Picture(s)
2,930 SquareFeet
A rare private estate lot spanning over half an acre, tucked into a serene oasis in Wonderland Hill. With a spectacular setting and endless possibilities, this .56-acre property is available for the first time in three generations – offering a truly once-in-a-lifetime opportunity to create a custom private estate or develop multiple dwelling units.
$1,895,000

Carolyn Heights

3621 21st Street, Boulder, CO 80304

4Bedroom(s)
5Bathroom(s)
3Parking(s)
50Picture(s)
6,300 SquareFeet
M
$12,000,000

Caruthers

333 Bellevue Drive, Boulder, CO 80302

5Bedroom(s)
8Bathroom(s)
3Parking(s)
44Picture(s)
8,427 SquareFeet
Carved into the slope of Boulder's iconic Flatirons, this architectural residence represents a level of craftsmanship and execution whose true cost far exceeds what could be reproduced today, with replacement economics now well beyond $20,000,000. Homes of this scale and quality are no longer achievable in Boulder.
$8,000,000

South Central

182 Ridge Road, Boulder, CO 80303

3Bedroom(s)
5Bathroom(s)
2Parking(s)
43Picture(s)
4,764 SquareFeet
Where Modern Design Meets Mountain Serenity. Set on 1.25 acres with panoramic views, this Boulder retreat offers a rare fusion of architectural sophistication, resort-style amenities, and thoughtful engineering. Fully reimagined in 2021, 182 Ridge Rd redefines modern mountain living – blending energy-efficient systems with timeless design and effortless flow.
$2,550,000

South Central

6903 Valmont Road, Boulder, CO 80301

3Bedroom(s)
1Bathroom(s)
8Parking(s)
44Picture(s)
927 SquareFeet
A rare sense of space and quiet only minutes from Boulder!! Just a short jaunt from downtown Boulder yet worlds away in privacy and atmosphere, featuring a seasonal waterway as a natural centerpiece. Quaint 3 Bedroom 1 Bath Farm House on 2.6 acres, overlooking the adjacent lake. COMMANDING VIEWS of the FRONT RANGE.
$995,000

21st/Linden Sub

3633 21st Street, Boulder, CO 80304

7Bedroom(s)
5Bathroom(s)
3Parking(s)
39Picture(s)
6,988 SquareFeet
Exquisite secluded sanctuary in the heart of Carolyn Heights. Tucked into one of Boulder's most prestigious enclaves, this estate offers a rare fusion of luxury, privacy, and relaxed sophistication. Set on a serene, tree-lined .81-acre level lot, this 7-bedroom, 5-bathroom oasis is where inspired design meets effortless living. Stunning views of the Flatirons awaken you each morning from your bed.
$10,000,000

Rural Bo & Lgt

6686 Jay Road, Boulder, CO 80301

4Bedroom(s)
4Bathroom(s)
4Parking(s)
42Picture(s)
7,832 SquareFeet
Unparalleled. Shanidiin Farm is a rare 40-acre sanctuary offering the ultimate in privacy, views, understated elegance, and sustainable design-all just 10 minutes from downtown Boulder. Named for the Navajo word meaning "ray of light," the estate lives up to its name in every detail.
$17,500,000

South Central

182 Ridge Road, Boulder, CO 80303

3Bedroom(s)
5Bathroom(s)
2Parking(s)
43Picture(s)
4,764 SquareFeet
Where Modern Design Meets Mountain Serenity! Set on 1.25 private acres framed by mature trees and sweeping views, 182 Ridge Rd delivers a rare combination of architectural refinement, resort-level outdoor living, and serious underlying infrastructure.
$2,550,000

Dreitlein

3788 26th Street, Boulder, CO 80304

5Bedroom(s)
4Bathroom(s)
2Parking(s)
47Picture(s)
4,427 SquareFeet
Surrounded by a lush canopy of mature trees, this distinguished home offers curated updates in a secluded, park-like setting. A 130-foot driveway sets the stage for an abundance of privacy. The light-filled entry flows into a sophisticated living area with a fireplace and sliding glass doors, while French doors open to a sun-drenched office.
$2,225,000

Highland Park 6

2585 Kohler Drive, Boulder, CO 80305

4Bedroom(s)
4Bathroom(s)
2Parking(s)
50Picture(s)
2,950 SquareFeet
Immaculate South Boulder sanctuary on a stunning 0.59-acre lot! Embrace sophisticated indoor-outdoor living in this beautifully remodeled 4BD/4BA featuring pristine sun-kissed interiors, exceptional outdoor space, en suite bedrooms and an ideal Highland Park location.
$2,290,000

TR NBR 140, 150, 164, 166

5648 Baseline Road, Boulder, CO 80303

3Bedroom(s)
4Bathroom(s)
2Parking(s)
9Picture(s)
3,100 SquareFeet
Experience modern luxury at its finest in this architecturally striking, brand-new Boulder residence by Cornerstone Homes, thoughtfully designed to capture sweeping mountain panoramas from the iconic Flatirons to the distant Continental Divide. Set within a private oasis in Boulder, this ultra-modern home seamlessly blends dramatic natural surroundings with refined contemporary living.
$5,400,000

Whisper Mountain Ranch

11780 Gold Hill Road, Boulder, CO 80302

5Bedroom(s)
7Bathroom(s)
3Parking(s)
37Picture(s)
9,575 SquareFeet
Whisper Mountain Ranch is the largest and most private property available in Boulder County! A 108 acre ranch for all your mountain activities – hiking, snowmobiling etc (with additional contiguous acreage available, see 11320 Gold Hill Rd) close in to Boulder with snow capped mountain views, adjacent to National Forest and located near the historic and idyllic town of Gold Hill.
$6,995,000
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