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THE SOURCE OF THE DISPLAYED DATA IS EITHER THE PROPERTY OWNER OR PUBLIC RECORD PROVIDED BY NON-GOVERNMENTAL THIRD PARTIES. IT IS BELIEVED TO BE RELIABLE BUT NOT GUARANTEED. FOR COLORADO VIEWERS, INFORMATION ABOUT NON-COMMERCIAL PROPERTIES IS PROVIDED EXCLUSIVELY FOR YOUR PERSONAL, NON-COMMERCIAL USE.

575 MADISON AVENUE, NEW YORK, NY 10022. 212.891.7000 © 2025 DOUGLAS ELLIMAN REAL ESTATE. EQUAL EMPLOYMENT OPPORTUNITY PROVIDER. ALL MATERIAL PRESENTED HEREIN IS INTENDED FOR INFORMATION PURPOSES ONLY. WHILE THIS INFORMATION IS BELIEVED TO BE CORRECT, IT IS REPRESENTED SUBJECT TO ERRORS, OMISSIONS, CHANGES, OR WITHDRAWAL WITHOUT NOTICE. ALL PROPERTY INFORMATION, INCLUDING, BUT NOT LIMITED TO SQUARE FOOTAGE, ROOM COUNT, NUMBER OF BEDROOMS, AND THE SCHOOL DISTRICT IN PROPERTY LISTINGS SHOULD BE VERIFIED BY YOUR OWN ATTORNEY, ARCHITECT, OR ZONING EXPERT. EQUAL HOUSING OPPORTUNITY.LISTING DATA REFRESHED ON JUN 11 2025 AT 12:21 AM.

DOUGLAS ELLIMAN IS A LICENSED REAL ESTATE BROKER IN CALIFORNIA WITH LICENSE # 01947727, COLORADO WITH LICENSE # EC100053892, CONNECTICUT WITH LICENSE # REB.0314827, THE DISTRICT OF COLUMBIA WITH LICENSE # REO40000160, FLORIDA WITH LICENSE # CQ1020232, MARYLAND WITH LICENSE # 645270, MASSACHUSETTS WITH LICENSE # 422764, NEVADA WITH LICENSE # 1454643, NEW JERSEY WITH LICENSE # 0572105, NEW YORK WITH LICENSE # 10991211812, TEXAS WITH LICENSE # 9008706, AND VIRGINIA WITH LICENSE # 0226035659.

POWERED BY PURLIN.AI

3621 21st St

boulder, CO 80304

$13,000,000

  • 4 BR
    1 BA, 1 HALF BA
    APPROX. 6,300 SF

INTERESTED? LET'S CONNECT

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.

Details

6,300 Sq Ft

0.66 Private Acres Exterior Space

Single Family Home

$54,784 Annual Tax

Built in 2021

MLS/Listing ID 1025368

2 Stories

Amenities & Features

Parking - Heated Garage

Parking - Garage Door Opener

Patio

Pool - Private

Window Coverings

Double Pane Windows

Disposal

Double Oven

Dryer

Freezer

Microwave

Refrigerator

Trash Compactor

Washer

Accessible Entrance

Level Lot

Open Floor Plan

Pantry

Walk-in Closets

Wet Bar

Heating - Baseboard

Heating - Forced Air

Heating - Hot Water

Heating - Radiant

Heating - Zoned

Level Drive

Main Floor Bath

Main Level Bedroom

Main Level Laundry

Gas Range/Oven

Hot Tub Included

Southern Exposure

9-ft+ Ceilings

Cathedral/Vaulted Ceilings

Steam Shower

Study Area

Washer and Dryer Hookup

Lot - Lawn Sprinkler System

Lot - Within City Limits

Composition

Dishwasher

Bar Fridge

Style - Contemporary Modern

Kitchen Island

High Speed Internet

Eat-in Kitchen

Sink

Main Level

Lot - Wooded

Lot - Level

Parking - Oversized

Construction - Wood Frame

Construction - Stone

Construction - Brick Veneer

Construction - Block

Cooling - Central Air

Gas Grill

Fenced

Living Room Fireplace

Gas Fireplace

Natural Wood

Listing Courtesy of COMPASS - BOULDER, PATRICIA DESSEL - 303-475-6097

IRES

Source of Data: IRES MLS

Interested in 3621 21st St?