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3633 21st St, Boulder, CO 80304

Boulder
Local realty services provided by:CENTURY 21 Cornerstone
3633 21st St,Boulder, CO 80304
$10,000,000
  • 7 Beds
  • 5 Baths
  • 6,988 sq. ft.
  • Single family
  • Active
Listed by: marybeth emerson
Office: the agency - boulder7205775503
MLS#:1051043
Source:IRES

Price summary

  • Price:$10,000,000
  • Price per sq. ft.:$1,431.02

About this home

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...

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Home facts

  • Year built:2024
  • Listing ID #:1051043
  • Added:169 day(s) ago
  • Updated:July 26, 2026 at 02:29 PM

Rooms and interior

  • Bedrooms:7
  • Total bathrooms:5
  • Full bathrooms:3
  • Half bathrooms:1
  • Flooring:Wood
  • Dining Description:Eat-in Kitchen, Separate Dining Room
  • Kitchen Description:Dishwasher, Disposal, Gas Range, Kitchen Island, Microwave, Pantry, Refrigerator
  • Basement Description:Daylight, Full
  • Living area:6,988 sq. ft.

Heating and cooling

  • Cooling:Ceiling Fan(s), Wall/Window Unit(s)
  • Heating:Hot Water, Radiant, Zoned

Structure and exterior

  • Roof:Composition
  • Year built:2024
  • Building area:6,988 sq. ft.
  • Lot area:0.81 Acres
  • Lot Features:Deciduous Trees, Evergreen Trees, House Faces South, Level, Wooded
  • Architectural Style:Contemporary
  • Construction Materials:Frame
  • Exterior Features:Deck, Patio, Sprinkler System
  • Levels:3 Story

Schools

  • High school:Boulder
  • Middle school:Centennial
  • Elementary school:Columbine

Utilities

  • Water:City
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$10,000,000
  • Price per sq. ft.:$1,431.02
  • Tax amount:$29,641

Features and amenities

  • Appliances:Dishwasher, Disposal, Dryer, Fire Alarm, Gas Range, Microwave, Refrigerator, Washer
  • Laundry features:Dryer, Washer
  • Amenities:Cathedral Ceiling(s), Eat-in Kitchen, Kitchen Island, Open Floorplan, Pantry, Separate Dining Room, Skylights, Walk-In Closet(s), Wood Windows

Parking

  • Parking description:Oversized Garage
  • Garage spaces:3
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