Homes for Sale in Boulder from $3,000,000
View all Boulder homes and real estate priced from $3,000,000. These luxury home listings are updated continually with photos, prices, neighborhood descriptions and more using data from the Multiple Listing Service (MLS). To find out more about any Boulder homes for sale or to schedule a showing, call or text The Principal Team at 720-408-7409 or contact us.
All Boulder Homes & Real Estate For Sale over $3,000,000
Sugarloaf Area
136 Old Post Office Road, Boulder, CO 80302
3Bedroom(s)
3Bathroom(s)
2Parking(s)
40Picture(s)
4,085 SquareFeet
Step into the enchanting beauty of Sweethome Ranch, a breathtaking private mountain estate spanning 40 fully fenced acres. Flanked on two sides by BLM land and National Forest, this rare retreat is just minutes from Downtown Boulder yet feels like a secluded paradise.
$3,225,000
Highland Lawn
563 Arapahoe Avenue, Boulder, CO 80302
4Bedroom(s)
5Bathroom(s)
2Parking(s)
40Picture(s)
4,274 SquareFeet
Renovated Riverfront Retreat in the Heart of Boulder. Tucked away in the historic Highland Lawn enclave of West Arapahoe, this beautifully restored four-bedroom, five-bathroom Victorian is a serene oasis designed for entertaining and easy living. With Boulder Creek flowing just beyond your backyard, this home offers a truly unique setting where nature and city life converge.
$4,375,000
Newlands
3189 5th Street, Boulder, CO 80304
5Bedroom(s)
6Bathroom(s)
2Parking(s)
40Picture(s)
5,394 SquareFeet
Nestled on an oversized, ultra-rare 14,424 sq ft corner shaded by mature trees, and featuring 4 en-suite bedrooms upstairs, 3189 5th St offers timeless style, seamless indoor-outdoor living & coveted location in Boulder’s beloved Newlands neighborhood. A covered front porch leads into warm, welcoming interiors filled with natural light, hardwood floors & detailed millwork.
$6,995,000
21st/Linden Sub
3633 21st Street, Boulder, CO 80304
7Bedroom(s)
5Bathroom(s)
3Parking(s)
40Picture(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.
$11,500,000
Flatirons
358 Arapahoe Avenue, Boulder, CO 80302
3Bedroom(s)
5Bathroom(s)
2Parking(s)
40Picture(s)
2,979 SquareFeet
New construction, completed April 2025. Perfect lock-and-leave, South end location overlooking the zen garden with great views of Flagstaff. Elegantly poised and gracefully designed, the residences at 358 Arapahoe radiate world-class luxury.
$3,950,000
Newlands
640 Iris Avenue, Boulder, CO 80304
5Bedroom(s)
5Bathroom(s)
2Parking(s)
29Picture(s)
5,019 SquareFeet
Redefining sophisticated living and effortless elegance.Located in highly sought-after Newlands, this exquisite residence was designed by the award-winning visionaries at Mosaic Architects and built by West Boulder Development. Move-in ready in just a few weeks, this home is a showcase of exceptional design and craftsmanship.
$6,250,000
Interurban Park Add
350 15th Street, Boulder, CO 80302
5Bedroom(s)
6Bathroom(s)
2Parking(s)
40Picture(s)
4,501 SquareFeet
Step into a home where timeless design meets modern comfort, offering phenomenal Flatiron and mountain views from every level. Thoughtfully crafted with an effortless flow between indoor and outdoor spaces, this home provides a truly refreshing and inviting atmosphere. The spacious living and dining area features a gorgeous stone fireplace, perfect for cozy gatherings.
$3,850,000
Bellevue Heights
1420 Sierra Drive, Boulder, CO 80302
4Bedroom(s)
6Bathroom(s)
4Parking(s)
40Picture(s)
5,469 SquareFeet
Elevate your lifestyle in this extraordinary residence where luxury and natural beauty converge, set-back on a private 17,000+ SQFT lot below Boulder’s iconic Flatirons & Chautauqua Park offering dramatic Flatiron VIEWS! Your private outdoor oasis features meticulously manicured xeriscaped grounds with over 750 tons of moss rock, incredible outdoor entertaining spaces, built-in BBQ, fire-pit & the
$7,000,000
Quigley
3633 Broadway Street, Boulder, CO 80304
3Bedroom(s)
4Bathroom(s)
2Parking(s)
38Picture(s)
3,130 SquareFeet
A rare opportunity to own a home that stands as a true testament to modern green design & sustainable building practices. Few homes in Colorado can boast such an impressive array of accolades, including Best Custom Home under 5,000 sq. ft. in Colorado (2019), the AIA Colorado Award of Merit in Sustainable Design (2022), and Bronze at the International Design Awards (2023).
$4,400,000
Newlands
3132 5th Street, Boulder, CO 80304
5Bedroom(s)
5Bathroom(s)
2Parking(s)
27Picture(s)
6,215 SquareFeet
Expansive living spaces define this stunning residence, perfectly positioned on an oversized triple lot in one of Boulder’s most coveted neighborhoods. This remarkable home delivers an ideal floor plan with five bedrooms and five bathrooms across three beautifully finished levels.The welcoming main level showcases gleaming hardwood floors throughout, with a well-designed open concept living space.
$4,495,000
Mapleton
720 Mapleton Avenue, Boulder, CO 80304
5Bedroom(s)
6Bathroom(s)
2Parking(s)
40Picture(s)
4,930 SquareFeet
Set on one of Boulder’s most coveted streets, this home seamlessly blends classic 1904 architecture with contemporary design for an elegant yet livable feel. A grand entry leads to a gourmet kitchen with marble countertops, a walk-in pantry and access to the south-facing dining and family room. French doors open to a charming wrap-around porch, inviting indoor-outdoor living.
$4,950,000
Juniper/Kalmia
706 Juniper Avenue, Boulder, CO 80304
7Bedroom(s)
10Bathroom(s)
3Parking(s)
40Picture(s)
8,978 SquareFeet
Unparalleled luxury in the heart of Boulder manifests as an architectural gem on a coveted 3/4 acre. From breathtaking views of the Flatirons and Mt. Sanitas, to spaces meticulously curated for effortless entertaining, this custom-built masterpiece redefines elevated living in every remarkably crafted detail.
$18,000,000