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$9,500,000

19 hours ago

440 Japonica Way, Boulder, CO

House

4 Bed

5 Bath

4943 sqft

2 Parking

MLS® IR1051957

  • Key Facts
  • Description
  • Rooms
  • Map

Key Facts

Type Single Family Residence
Levels Residential
Size 4943 sqft
Garage Yes
Taxes $29,325
Days Active 0
Lot Size 0.29 acres
Approx. Age 2023
Avg. Price Per Sqft $1,921
MLS® Number IR1051957

Property Address: 440 Japonica Way, Boulder, CO, 80304-1712

Average square foot calculated using Size range provided by listing agent.

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.
MLS® NumberIR1051957
Laundry LevelIn Unit
Central VacNo
FireplaceNo
Acreage0.29
Exterior
GarageYes
Approx. Age2023
Basement
DrivewayOversized
Garage Spaces2
Heat
A/C
Heating Fuel

Extras

Rooms

Other:Main Floor17 × 17 ft
Living Room:Main Floor21 × 20 ft
Other:Main FloorNot available
Dining Room:Main Floor21 × 11 ft
Other:Main FloorNot available
Kitchen:Main Floor21 × 11 ft
Game Room:Basement16 × 29 ft
Other:Upper LevelNot available

Price History

-End Date
Not Sold YetSold Price

For Sale

Feb 19, 2026List Date
$9,500,000List Price

Home Appraisal

This property is estimated to sell between: $2,769,000 and $12,866,000.
Similar properties in this area sold on average for: $2,769,000
Expected to sell in 162 days. Similar properties sold in 162 days. This home has been on eXp Realty for 0 days.

The estimated sale price does not take into account many variables such as recent renovations, type of appliances, school district etc. To get a more accurate estimate please contact agent.

  • Commute

Commute

Starting Address
Destination Address
440 Japonica Way, Boulder, CO

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