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440 Japonica Way

Boulder, CO 80304
  • $12,000,000
  • STATUS: Active
  • ON SITE: 61 Days
  • ID#: IR1031937
UPDATED: 34 min ago
$12,000,000
  • 4
    BEDS
  • 0.29
    ACRES
  • 4
    BATHS
  • 1
    1/2 BATHS
  • 5,244
    SQFT
  • $2,288
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
2023
County:
Area:

School Information

Elementary School:
Middle School:
High School:
School District:
REcolorado logo Offered by milehimodern - Boulder.

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.

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Licensed in the State of Colorado, USA

The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange (IDX) program of METROLIST, INC., DBA RECOLORADO®. Real estate listings held by brokers other than CC Signature Group | Coldwell Banker Residential Brokerage Global Luxury 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.

1. This publication is designed to provide information regarding the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

2. The information contained in this publication is subject to change without notice. METROLIST, INC., DBA RECOLORADO MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. METROLIST, INC., DBA RECOLORADO SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR ANY DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

3. PUBLISHER’S NOTICE: All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

4. METROLIST, INC., DBA RECOLORADO will not knowingly accept any advertising for real estate that is in violation of the law. All persons are hereby informed that all dwellings advertised are available on an equal opportunity basis.

5. ALL RIGHTS RESERVED WORLDWIDE. No part of this publication may be reproduced, adapted, translated, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. The information contained herein including but not limited to all text, photographs, digital images, virtual tours, may be seeded and monitored for protection and tracking.

Based on information submitted to the MLS GRID as of 2025-06-24T15:24:03.287 (date and time MLS Grid Data was obtained). 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.

REcolorado logo © 2025 METROLIST, INC., DBA RECOLORADO® – All Rights Reserved 6455 S. Yosemite St., Suite 500 Greenwood Village, CO 80111 USA

www.ccsignaturegroup.com/homes/162896119
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440 Japonica Way Boulder, CO 80304

  • Price: $12,000,000
  • Status: Active
  • On Site: 61 Days
  • Updated: 34 min ago
  • ID#: IR1031937
4
Beds
4
Baths
1
½ Baths
0.29
Acres
5,244
SQFT
$2,288
$/SQFT
2023
Built
Neighborhood:
Northwest Boulder
County:
Boulder
Area:
Boulder
Elementary School:
Foothill
Middle School:
Centennial
High School:
Boulder
School District:
Boulder Valley Re 2
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. Easy upstairs conversion for 3 beds up. Already designed.
Exterior Features

Attached Garage YN Yes Construction Materials BrickFrame Lot Features Cul-De-SacLevelSprinklers In Front Parking Features Oversized Parking Total 2 Patio And Porch Features Patio Pool Features Private Road Frontage Type Public Road Surface Type Paved Roof CompositionMembrane Structure Type House View Mountain(s)

Interior Features

Above Grade Finished Area 3512 Appliances DishwasherDouble OvenRefrigerator Basement YN Yes Below Grade Finished Area 1431 Cooling Central Air Fireplace Features Living Room Flooring Wood Heating Heat PumpHot Water Interior Features Eat-in KitchenFive Piece BathKitchen IslandOpen FloorplanPantryVaulted Ceiling(s)Walk-In Closet(s) Laundry Features In Unit Levels Two Main Level Bathrooms 2 Main Level Bedrooms 1 Rooms Primary Bathroom Full (Main Level) Bathroom Half (Main Level) Bathroom Three Quarter (Basement Level) Bathroom Three Quarter (Upper Level) Bathroom Three Quarter (Upper Level) Living Room (Main Level) Game Room (Basement Level) Office (Upper Level) Kitchen (Main Level) Bedroom (Basement Level) Dining Room (Main Level) Bedroom (Upper Level) Primary Bedroom (Main Level) Bedroom (Upper Level) Rooms Total 13 Window Features Double Pane WindowsWindow Coverings

Property Features

Association YN No Building Area Source Assessor Comparable Listing YN No Exclusions Seller's personal property and/or staging items. Flat files in office. HVACDescription Central Air Conditioning Listing Terms CashConventional Living Area Sq Ft 4943 Ownership Individual Possession Closing/DOD Property Attached YN No Property Sub Type Single Family Residence Restrictions Covenants YN No Sewer Public Sewer Sewer Tap YN No Tax Annual Amount 29529 Tax Legal Description LOT 5 & SM TRIANGLE IN SE OF LOT 6 TEETS Tax Year 2024 Utilities Cable AvailableElectricity AvailableNatural Gas Available Water Source Public Zoning RES

REcolorado logo Listing courtesy of milehimodern - Boulder:3038179300. MLS #IR1031937


Licensed in the State of Colorado, USA

The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange (IDX) program of METROLIST, INC., DBA RECOLORADO®. Real estate listings held by brokers other than CC Signature Group | Coldwell Banker Residential Brokerage Global Luxury 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.

1. This publication is designed to provide information regarding the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

2. The information contained in this publication is subject to change without notice. METROLIST, INC., DBA RECOLORADO MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. METROLIST, INC., DBA RECOLORADO SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR ANY DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

3. PUBLISHER’S NOTICE: All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

4. METROLIST, INC., DBA RECOLORADO will not knowingly accept any advertising for real estate that is in violation of the law. All persons are hereby informed that all dwellings advertised are available on an equal opportunity basis.

5. ALL RIGHTS RESERVED WORLDWIDE. No part of this publication may be reproduced, adapted, translated, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. The information contained herein including but not limited to all text, photographs, digital images, virtual tours, may be seeded and monitored for protection and tracking.

Based on information submitted to the MLS GRID as of 2025-06-24T15:24:03.287 (date and time MLS Grid Data was obtained). 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.

REcolorado logo © 2025 METROLIST, INC., DBA RECOLORADO® – All Rights Reserved 6455 S. Yosemite St., Suite 500 Greenwood Village, CO 80111 USA

 
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CC Signature Group | Coldwell Banker Residential Brokerage Global Luxury
1755 Telstar Drive, Suite 250
Colorado Springs CO, 80920
REcolorado logo Offered by milehimodern - Boulder.