Judy Pitt

Broker Associate
License#:

$8,700,000

440 Japonica Way, Boulder, CO 80304  (Sold on )

  • Price Reduced$800,000
  • Open House
  • New Listing
  • Coming Soon
  • 5 BedBeds
  • 5 BathBaths
  • 5,244 SqftSqft
  • TypeSingle Family
  • Active
  • MLS# 1051957
0 More Schedule

Property Description

A striking blend of sustainability and sophistication; this home, designed by Annette and Dennis Martin in 2023, is tucked on a quiet cul-de-sac off one of Boulder's most coveted streets. This net-zero residence features advanced energy systems, including geothermal heating/cooling, radiant in-floor heat, a high-efficiency gas boiler and a 14.44kW solar array. A thoughtful layout connects open-concept living with vaulted ceilings, custom floating staircase, extensive millwork and designer lighting from Italy, Denmark, England, and the U.S. The main-floor primary suite offers a spa-like bath with onyx and white marble tile, double vanities, and a Kohler whirlpool tub. Entertain indoors or out with a chef's kitchen featuring Gaggenau and Sub-Zero appliances, a built-in Sedona grill, and a 10'x38' year-round saltwater pool. Expansive Sierra Pacific windows and doors frame views of the foothills while blending interior and exterior spaces. Savant smart home tech and Lutron lighting ensure effortless living at every turn. Easy upstairs conversion for 3 beds up. Already designed.

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Property Details

General

  • Subdivision: Northwest Boulder
  • County: Boulder
  • List Date: 02/19/2026
  • Expected Active Date: 02/19/2026
  • DOM: 74
  • Lot SqFt: 12784
  • Beds: 5
  • Baths: 5.00
  • Full Baths: 1
  • ¾ Baths: 3
  • Half Baths: 1
  • Basement/Foundation: Partially Finished
  • Year Built: 2023
  • New construction: NO
  • Sq Ft (total): 5244
  • Garage/Parking Spaces: 2
  • Garage Description: Attached
  • MLS#: 1051957

Interior Features

  • Heating: Hot Water, Heat Pump, Zoned
  • Cooling: Central Air
  • Fireplace: Living Room
  • Disability Accessibility: Level Lot, Main Floor Bath, Main Level Bedroom

Exterior Features

  • Construction: Frame, Brick
  • Roof: Composition, Rubber
  • Type: Single Family Residence
  • Outdoor Features: Sprinkler System, Oversized Garage
  • Road Access: City Street
  • Waterfront: NO
  • Views: Hills

Schools

  • School District: Boulder Valley Dist RE2
  • Elementry: Foothill
  • Middle/Jr: Centennial
  • High School: Boulder

Financial Considerations

  • Tax Year: 2025
  • Tax Amount: $29325

Utilities

  • Utilities: Natural Gas Available, Electricity Available, Cable Available
  • Water/Sewer: Public Sewer
  • Water: City
 

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