Residential

$8,700,000

440 Japonica Way, Boulder CO

MLS ID: IRE1051957

County: Boulder

Acres: 0.29

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.

Interior Details

Bedrooms: 5

Bathrooms: 5

Square Feet: 4,943

Year Built: 2023

Boulder CO 80304

Get Directions

Information source: ©2021 Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES. Terms of Use: Listing 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. Property locations as displayed on any map are best approximations only and exact locations should be independently verified. Information deemed reliable but not guaranteed by the MLS.

Information source: ©2021 RE Colorado, INC. The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange (“IDX”) program of RE Colorado, INC. Real estate listings held by brokers other than owners of this website are marked with the IDX Logo. This information is being provided for the consumers’ personal, non-commercial use and may not be used for any other purpose. All information subject to change and should be independently verified.