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$12,000,000
1 Day On Site

440 Japonica Way
Boulder, CO 80304

For Sale|Single Family Residence|Active
3
Beds
1
Full Bath
4
Partial Baths
4,943
SqFt
$2,428
/SqFt
2023
Built
Subdivision:
Northwest Boulder
County:
Boulder
Call Now: 720-408-7409
Is this the home for you? We can help make it yours.
720-408-7409
440 Japonica Way440 Japonica Way440 Japonica Way440 Japonica Way
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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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Listing Snapshot
Price 
$12,000,000
Days On Site 
1 Day
Bedrooms 
3
Inside Area (SqFt) 
4,943 sqft
Total Baths 
5
Full Baths 
1
Partial Baths 
4
Lot Size 
0.29 Acres
Year Built 
2023
MLS® Number 
IR1031937
Status 
Active
Property Tax 
$29,529
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Assessor
Friends & Family
Recent Activity
yesterdayListing updated with changes from the MLS®
yesterdayListing first seen on site
General Features
Acres 
0.29
Attached Garage 
Yes
Garage 
Yes
Garage Spaces 
2
Parking 
OversizedAttached
Parking Spaces 
2
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
SqFt Above 
3512
SqFt Below 
1431
SqFt Total 
5244
Stories 
Two
Utilities 
Cable AvailableElectricity AvailableNatural Gas Available
Water Source 
Public
Zoning 
RES
Interior Features
Appliances 
DishwasherDouble OvenRefrigerator
Cooling 
Central Air
Fireplace Features 
Living Room
Flooring 
Wood
Heating 
Heat PumpHot Water
Interior 
Eat-in KitchenKitchen IslandOpen FloorplanPantryVaulted Ceiling(s)Walk-In Closet(s)
Laundry Features 
In Unit
Main Level Bedrooms 
1
Window Features 
Double Pane WindowsWindow Coverings
Bathroom (1/2) 
Level - Main
Bathroom (3/4) 
Level - Basement
Bedroom 
Dimensions - 15 x 17Level - Basement
Dining Room 
Dimensions - 11 x 21Level - MainDescription - Wood
Game Room 
Dimensions - 29 x 16Level - Basement
Kitchen 
Dimensions - 11 x 21Level - MainDescription - Wood
Living Room 
Dimensions - 20 x 21Level - MainDescription - Wood
Office 
Dimensions - 17 x 25Level - UpperDescription - Wood
Primary Bathroom (Full) 
Level - Main
Primary Bedroom 
Dimensions - 17 x 17Level - MainDescription - Wood
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Exterior Features
Construction Details 
BrickFrame
Lot Features 
Cul-De-SacLevelSprinklers In Front
Patio And Porch 
Patio
Pool Features 
Private
Private Pool 
Yes
Roof 
CompositionMembrane
View 
Mountain(s)
Waterview 
Mountain(s)
Windows/Doors 
Double Pane WindowsWindow Coverings
Community Features
Financing Terms Available 
CashConventional
Roads 
Paved
School District 
Boulder Valley RE 2
Schools
School District
Boulder Valley RE 2
Elementary School
Foothill
Middle School
Centennial
High School
Boulder
Listing courtesy of milehimodern - Boulder tim@goodacreproperties.com



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