Enter your work address to calculate commute times to and from 3633 21st Street.
School District
Status
Year Built
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. Those same views tease your senses from the expansive patios with fully retractable doors that blur the lines from inside to outside. Bathed in natural light from soaring windows and skylights, every detail has been thoughtfully curated. Custom walnut doors and paneling welcome you into the home and invite you to explore. The chef's kitchen is a showstopper-featuring custom cabinetry, an oversized marble island, and top-of-the-line Thermador appliances. The open-concept layout flows seamlessly into a lush backyard oasis, perfect for gatherings or quiet moments of retreat by the fire pit. The primary suite is a haven unto itself with vaulted ceilings, a spa-inspired bath, spacious walk-in closet, and private deck access. With multiple flexible living spaces-including a dedicated home office and media room, this home is ready to adapt to your every need. Located minutes from North Boulder's best hiking trails, cycling routes, farmers markets, and local eateries-yet nestled in the peaceful privacy of a mature, sought-after neighborhood. Elevated living starts here. LIVE BOULDER, LOVE BOULDER! Original home built in 1987. Home had a studs up remodel that was completed in early 2024.
Status: Active
The Agency - Boulder.
Powered By
Electricity Available, Natural Gas Available
Eat-in Kitchen, Five Piece Bath, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s)
Dishwasher, Disposal, Dryer, Microwave, Oven, Refrigerator, Washer
Air Conditioning-Room, Ceiling Fan(s)
The Agency - Boulderregister to unlock
DRIVE TIME TO BASE
High Residential Turnover, Suburb of Denver
| GreatSchools | School Name | Distance |
|---|---|---|
|
CENTENNIAL MIDDLE SCHOOL Public - 6th Grade to 8th Grade - Closest Middle School |
0.3 Miles |
|
TARA PERFORMING ARTS HIGH SCHOOL Private - 9th Grade to 12th Grade |
0.6 Miles |
|
CREST VIEW ELEMENTARY SCHOOL Public - Kindergarten to 5th Grade - Closest Elementry School |
0.6 Miles |
|
|
PATIENCE MONTESSORI SCHOOL Private - Preschool to Kindergarten |
0.7 Miles |
|
COLUMBINE ELEMENTARY SCHOOL Public - Preschool to 5th Grade |
0.7 Miles |
|
|
JARROW MONTESSORI SCHOOL Private - Preschool to 6th Grade |
0.7 Miles |
|
FOOTHILL ELEMENTARY SCHOOL Public - Kindergarten to 5th Grade |
0.9 Miles |
Property Summary: Located in the 21st/Linden Sub subdivision, 3633 21st Street is a Single Family Residence home for sale in Boulder, CO 80304, listed at $10,000,000. Current listing information about 3633 21st Street indicates the property features, 7 beds, 5 baths, and has approximately 6,988 square feet of living space, with a lot size of 0.81 acres, and was originally constructed in 2024. The current price per square foot is $1,431. The average price per square foot for properties in 80304 is $839. The average list prices for similar properties for sale is $3,318,217. To schedule a private showing of MLS# IR1051043 at 3633 21st Street in 21st/Linden Sub, contact your Boulder real estate team at 719-338-7294.
Terms and Conditions: The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange ("IDX") program of METROLIST, INC., DBA RECOLORADO® Real estate listings held by brokers other than RE/MAX Real Estate Group are marked with the IDX Logo. This information is being provided for the consumers personal, non-commercial use and may not be used for any other purpose. All information subject to change and should be independently verified.
Copyright 2026 METROLIST, INC., DBA RECOLORADO® -- All Rights Reserved 6455 S. Yosemite St., Suite 300 Greenwood Village, CO 80111 USA
Listing information last updated on June 15th, 2026 at 8:34pm MDT.
