Back to Search
440 Japonica Way, Boulder, CO 80304
440 Japonica Way, Boulder, CO 80304 3D Tour
440 Japonica Way, Boulder, CO 80304 Explore 3D Tour
440 Japonica Way, Boulder, CO 80304
440 Japonica Way, Boulder, CO 80304
440 Japonica Way, Boulder, CO 80304
440 Japonica Way, Boulder, CO 80304

440 Japonica Way Boulder, CO 80304

$8,700,000

ACTIVE
Beds
5
Baths
5
Sqft
4,943
Acres
0.29
Year
2023
Days on Site
44
Property Type
Residential
Sub Type
Single Family
Per Square Foot
$1,760
Date Listed
Feb 19, 2026

Description of 440 Japonica Way, Boulder, CO 80304

Listing details for 440 Japonica Way, Boulder, CO 80304 : 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.
Listing Updated : 03-18-2026 at 3:36 PM MDT
Listing Provided By : R Tim Goodacre, 3038761073, milehimodern - Boulder
Source :

recolorado as distributed by MLS GRID, MLS#: RECIR1051957

Home Worth Check

Interested in 440 Japonica Way, Boulder CO, 80304?

By proceeding, you consent to receive calls, texts and voicemails at the number you provided (may be recorded and may be autodialed and use prerecorded and artificial voices), and email, from The Kenna Real Estate Group about your inquiry and other home-related matters. Msg/data rates may apply. This consent applies even if you are on a do not call list and is not a condition of any purchase.

Location of 440 Japonica Way, Boulder, CO 80304

Google Map
Mortgage Calculator
Listing Price
Down Payment
Interest Rate

Schools Near 440 Japonica Way, Boulder, CO 80304

Homes Similar to 440 Japonica Way, Boulder, CO 80304

Thinking of Moving? Must Reads.

Source Logo
Based on information submitted to the MLS GRID as of 2026-04-03 at 9:00 p.m. MDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

HomeBoulderNorthwest Boulder
What's your home worth?
Have a top local Realtor give you a FREE Comparative Market Analysis
Hear From Happy Homeowners
See how we've helped others achieve their real estate goals.
280 reviews on