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440 Japonica Way Boulder, CO 80304

$9,500,000

ACTIVE

Beds

Baths

Sqft

4,943

Acres

0.29

Year

2023

Days on Site

Property Type

Residential

Sub Type

Single Family

Per Square Foot

$1,922

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 : 02-21-2026 at 12:15 AM EST

303-955-4220

Home Details

440 Japonica Way, Boulder, CO 80304

Status

Active

MLS #ID

RECIR1051957

Price

$9,500,000

Bedrooms

Bathrooms

Square Footage

4,943

Acres

0.29

Year

2023

Days on Site

Property Type

Residential

Property Sub Type

Single-Family

Price per Sq Ft

$1,922

Date Listed

Feb 19, 2026

Community Information for 440 Japonica Way, Boulder, CO 80304

Address

440 Japonica Way

City Boulder

State

Colorado

Zip Code 80304

County Boulder

Subdivision Northwest Boulder

Schools

Elementary Foothill

Middle Centennial

High Boulder

School Districts

High School District Boulder Valley RE 2

Utilities

Sewer

Public Sewer

Water Source

Public

Interior

Interior Features

Eat-in Kitchen, Five Piece Bath, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s) and Walk-In Closet(s)

Appliances

Dishwasher, Double Oven and Refrigerator

Heating

Heat Pump and Hot Water

Cooling

Central Air

Fireplace

Exterior

Roof

Composition,Membrane

Garage Spaces

Foundation

HOA

Has HOA

None

Additional Information

Styles

Price per Sq Ft

$1,922

Listing Provided By

R Tim Goodacre, 3038761073, milehimodern - Boulder

Source

recolorado, MLS#: RECIR1051957

Comments

Interested in 440 Japonica Way, Boulder CO, 80304?

Location of 440 Japonica Way, Boulder, CO 80304

Mortgage Calculator

This beautiful 5 beds 5 baths home is located at 440 Japonica Way, Boulder, CO 80304 and is listed for sale at $9,500,000.00. This home was built in 2023, contains 4943 square feet of living space, and sits on a 0.29 acre lot. This residential home is priced at $1,921.91 per square foot.

If you'd like to request a tour or more information on 440 Japonica Way, Boulder, CO 80304, please call us at 303-955-4220 so that we can assist you in your real estate search. To find homes like 440 Japonica Way, Boulder, CO 80304, you can search homes for sale in Boulder , or visit the neighborhood of Northwest Boulder , or by 80304 . We are here to help when you're ready to contact us!

Schools Near 440 Japonica Way, Boulder, CO 80304

303-955-4220

Home Details

440 Japonica Way, Boulder, CO 80304

Status

Active

MLS #ID

RECIR1051957

Price

$9,500,000

Bedrooms

Bathrooms

Square Footage

4,943

Acres

0.29

Year

2023

Days on Site

Property Type

Residential

Property Sub Type

Single-Family

Price per Sq Ft

$1,922

Date Listed

Feb 19, 2026

Community Information for 440 Japonica Way, Boulder, CO 80304

Address

440 Japonica Way

City Boulder

State

Colorado

Zip Code 80304

County Boulder

Subdivision Northwest Boulder

Schools

Elementary Foothill

Middle Centennial

High Boulder

School Districts

High School District Boulder Valley RE 2

Utilities

Sewer

Public Sewer

Water Source

Public

Interior

Interior Features

Eat-in Kitchen, Five Piece Bath, Kitchen Island, Open Floorplan, Pantry and Vaulted Ceiling(s)

Appliances

Dishwasher and Double Oven

Heating

Heat Pump and Hot Water

Cooling

Central Air

Fireplace

Exterior

Roof

Composition,Membrane

Garage Spaces

Foundation

HOA

Has HOA

None

Additional Information

Styles

Price per Sq Ft

$1,922

Listing Provided By

R Tim Goodacre, 3038761073, milehimodern - Boulder

Source

recolorado, MLS#: RECIR1051957

Comments

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AI-Generated Summary

Based on 280 Google reviews

Jorgen and Zach prioritize their clients' interests and provide excellent service.

The team at Kenna Real Estate is highly skilled, professional, and friendly.

Regular training and emphasis on innovation ensure top-notch service.

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2 months ago

Love working with Brian Burke and the Kenna Real Estate team!

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Brick & Ivy

2 months ago

Working with Beverly and Tahverle was a wonderful experience. In this industry, we’re often partnered with agents who aren’t up to the task — but that was certainly not the case here. They were professional, communicative, and ensured a clear, seamless transaction from start to finish. As an agent on the other side of the table, I would be happy to work with these two again in the future. - Angela Kemper

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Jaime Kocanda

3 months ago

Brian is amazing. He is thorough, attentive and goes above and beyond to cater to his client’s needs. There is better person out there to assist you with your home search start to finish.

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Quest Doll

5 months ago

We are so thankful for Brian and his team! This is our first time buying a home and Kenna Real Estate made the process extremely easy! We highly recommend and will definitely use them again if we move!

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Keith Johnson

5 months ago

The truth about sales is that people buy from people. People you trust, people you bond with, people you like. There are no finer people than the team of Tahverle and Beverly. They worked hard to prepare and sell our home in a very difficult buyers market, against very stiff competition in the market, including 3 homes homes on our own block. Tahverly and Beverly got our home sold first and found us a great new home across town that we love. They are an excellent team with tons of knowledge and experience to make things easy for clients.

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