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3621 21st St, Boulder, CO 80304
3621 21st St, Boulder, CO 80304 3D Tour
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3621 21st St, Boulder, CO 80304
3621 21st St, Boulder, CO 80304
3621 21st St, Boulder, CO 80304
3621 21st St, Boulder, CO 80304

3621 21st St Boulder, CO 80304

$12,000,000

ACTIVE
Beds
4
Baths
5
Sqft
6,300
Acres
0.66
Year
2021
Days on Site
52
Property Type
Residential
Sub Type
Single Family
Per Square Foot
$1,905
Date Listed
Feb 11, 2026

Description of 3621 21st St, Boulder, CO 80304

Listing details for 3621 21st St, Boulder, CO 80304 : Meticulously crafted, masterfully built, and expertly curated with an elevated design, this custom home is a true masterpiece, perfectly situated on a premier lot in the exclusive Carolyn Heights neighborhood, The exquisite design and inspiring architecture of this exceptional residence ensures that every facet embodies luxury, casual elegance, and attention to detail, harmoniously blending wood, glass, stone, and steel to create an ambiance that is both inviting and inspiring. Upon entry, you'll be greeted by soaring ceilings, wide plank white oak flooring, & an open-concept main level bathed in abundant natural light streaming through expansive windows, inviting the outside in. The prodigious living area seamlessly integrates indoor & outdoor spaces, offering a glimpse of the splendid living experience that awaits. The architectural grandeur is showcased w/ a dramatic three-story open-tread wooden staircase, custom steel railings, & illuminated by bespoke lighting. The centerpiece of the home, the gourmet kitchen, boasts an impressive center island, marble & quartz countertops, artisanal tile, custom cabinetry, top-tier chef's appliances, & walk-in pantry. The elegant main floor primary bedroom suite is a tranquil retreat, w/ wall-to-wall windows, a generous walk-in closet w/custom cabinetry. The soothing primary bathroom features premium quality finishes, including designer tile, custom cabinetry, & alluring lighting.The heated pool w/ a tanning shelf, natural stone deck, & automatic pool cover takes center stage in the serene yard. Every aspect of this smart home seamlessly integrates technology, design, & automation to ensure security & convenience, and efficiency. For the discerning owner desiring a residence that embodies casual elegance & architectural interest, w/proximity to vibrant downtown Boulder & nestled in an upscale neighborhood, this property is a rare find that offers an unsurpassed lifestyle.
Listing Updated : 02-27-2026 at 6:15 PM MST
Listing Provided By : Patricia Dessel, 3034875472, Compass - Boulder
Source :

recolorado as distributed by MLS GRID, MLS#: RECIR1051395

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Based on information submitted to the MLS GRID as of 2026-04-04 at 1:00 a.m. MDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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