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440 Japonica Way

Boulder, CO 80304
  • $12,000,000
  • STATUS: Active
  • ON SITE: 24 Days
  • MLS #: 1031937
UPDATED: 156 min ago
$12,000,000
  • 3
    BEDS
  • 0.29
    ACRES
  • 4
    BATHS
  • 1
    1/2 BATHS
  • 5,244
    SQFT
  • $2,288
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
2023
County:

School Information

Elementary School:
Middle School:
High School:
School District:

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.

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© 2025 Information and Real Estate Services, LLC. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or The Wild Realty Group. Data last updated: 2025-05-17T23:41:11.41.

Information source: Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES.
www.thewildrealtygroup.com/homes/162893586
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440 Japonica Way Boulder, CO 80304

  • Price: $12,000,000
  • Status: Active
  • On Site: 24 Days
  • Updated: 156 min ago
  • MLS #: 1031937
3
Beds
4
Baths
1
½ Baths
0.29
Acres
5,244
SQFT
$2,288
$/SQFT
2023
Built
Neighborhood:
Northwest Boulder
County:
Boulder
Area:
01 Boulder City Limits
Elementary School:
Foothill
Middle School:
Centennial
High School:
Boulder
School District:
Boulder Valley Dist Re2
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.
Exterior Features

Attached Garage YN Yes Construction Materials Wood/FrameBrick/Brick Veneer Covered Spaces 2 Garage Type Attached Garage YN Yes Horse YN No Levels Two Lot Features CurbsSidewalksLawn Sprinkler SystemCul-De-SacLevelWithin City Limits Parking Features Oversized Patio And Porch Features Patio Pool Features Private Pool Private YN Yes Road Frontage Type City Street Road Surface Type PavedAsphalt Roof CompositionRubber Spa YN Yes View Foothills View Waterfront YN No

Interior Features

Above Grade Finished Area 3512 Accessibility Features Level LotMain Floor BathMain Level Bedroom Appliances Double OvenDishwasherRefrigerator Basement Partially Finished Baths Rough In 0 Bedroom2 Length 13 Bedroom2 Level Upper Bedroom2 Width 16 Bedroom3 Length 15 Bedroom3 Level Basement Bedroom3 Width 17 Below Grade Finished Area 1732 Building Area Total 3512 Cooling Central Air Cooling YN Yes Dining Room Length 11 Dining Room Level Main Dining Room Width 21 Fireplace Features Living Room Fireplace YN Yes Flooring Wood Floors Has Family Room No Heating Hot WaterHeat PumpZoned Heating YN Yes Interior Features Study AreaEat-in KitchenCathedral/Vaulted CeilingsOpen FloorplanPantryWalk-In Closet(s)Kitchen Island9ft+ CeilingsBeamed Ceilings Kitchen Length 11 Kitchen Level Main Kitchen Width 21 Laundry Features Washer/Dryer Hookups Living Area 4943 Living Area Source Assessor Living Room Length 20 Living Room Level Main Living Room Width 21 Main Floor Sq Ft 2302 Master Bedroom Length 17 Master Bedroom Level Main Master Bedroom Width 17 Rec Room Length 29 Rec Room Level Basement Rec Room Width 16 Study Length 17 Study Level Upper Study Width 25 Upper Sq Ft 1210 Window Features Window CoveringsWood FramesDouble Pane Windows

Property Features

Association YN No Ditches Active YN No Electric Electric Exclusions Seller's personal property and/or staging items. Flat files in office. Gas Natural Gas Green Energy Efficient Southern Exposure Has Association Fee No Has Association2 Fee No Has Improvements No Has Water Rights No Listing Sub Status None Listing Terms CashConventional Locale Boulder New Construction YN No Power Production Type Photovoltaics Property Condition Not NewPreviously Owned Property Sub Type Residential-Detached Senior Community YN No Sewer City Sewer Solar Pv Kilowatts 14.44 Solar Pv Year Installed 2023 Special Listing Conditions Private Owner Tax Annual Amount 29529 Tax Year 2024 Utilities Natural Gas AvailableElectricity AvailableCable Available Water Source City WaterBoulder Water Zoning RES

Listing information © 2025 Information and Real Estate Services
Listing provided courtesy of R Tim Goodacre of milehimodern - Boulder: 3038179300.



© 2025 Information and Real Estate Services, LLC. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or The Wild Realty Group. Data last updated: 2025-05-17T23:41:11.41.

Information source: Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES.
 
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