3231 11th Street Boulder, CO ^$ 4,400,000

3231 11th Street

^$ 4,400,000

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Recently Listed

3231 11th Street

Boulder, CO, 80304

^$ 4,400,000

Bedrooms3 Baths3.0 Sq 3,258

Monthly Estimate*

^$ 27,092

Listed by milehimodern - Boulder

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Single Family Home for sale in Boulder, CO

for $4,400,000 with 3 bedrooms and 3 full baths. This 3,258 square foot home was built in 1900 on a lot size of 0.29.

Located on one of Newlands quietest streets a stone "Foursquare-style" home steeped in tradition and Landmarked as a historical 1903 residence, presents itself as a testament to Boulder's past. This same residence equally celebrates Boulder's future, which now heralds the 2026 cultural and economic impacts of the Sundance Film Festival. In 2011, the renovation of the original home and the addition of 2,500 sq. feet of new structures achieved the highest level of residential construction, earning a LEED Platinum Certification. It is one of 169 residential homes in all of Colorado to have ever earned this award. This distinctly creative property seamlessly blends timeless character with modern sustainability, showcasing a design that harmonizes architecture with nature. Residing on an expansive 12,500-square-foot lot that features fruit trees, a park like sustainable lawn with remarkable boulders and sky views, this beautiful house awaits its next steward. This home is designed to promote wellness, featuring temperature-regulating structurally integrated panel construction, a 10 kW solar array, low-VOC finishes, and a south-facing passive solar orientation. The ranch-style layout features a lofted second bedroom, ideal for guests or a private office, while an 850-square-foot flexible studio with soaring ceilings inspires creativity and connects to a licensed, income-producing 1-bedroom/1-bath ADU. Four stone-crafted, raised organic garden beds and a sunlit indoor-outdoor flow create a truly magical retreat just moments from Ideal Market, North Boulder Park, and extensive mountain hiking trails. Pre-inspected and unlike any other home in Newlands, this residence is a truly one-of-a-kind fusion of history, innovation, and Boulder's natural beauty.

Single Family Active

Price

^$ 4,400,000

Bedrooms

Full Bath

Property Type

Single Family

Taxes

^$ 14,938

Style

House

Lot Size

0.29

Year Built

1900

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1054937

Features

General

Sewer Public Sewer

Heating Forced Air

Cooling Central Air

Utilities Electricity Available Natural Gas Available

Possession Closing/DOD

Roof Composition

Appliances Dishwasher Oven Refrigerator

Zoning RES

Patio/Porch Features Patio

Construction Materials Stone

Exclusions Seller's property disclosure + all staging items

Year Built 1900

Levels Two

Property Subtype Single Family Residence

Tax Year 2025

Ownership Individual

County Boulder

Property Type Residential

HOA N

Subdivision Name Newlands

Full Baths 3

Status Active

High School Boulder

City Boulder

High School District Boulder Valley RE 2

Lot Size Square Feet 12632

Listing Terms Cash Conventional

Elementary School Foothill

Tax Annual Amount 14938

Middle/Junior High School Casey

Concessions No

Virtual Tour https://vimeo.com/1117936175

Structure Type House

Standard Status Active

Occupancy Type Owner

Elementary School District Boulder Valley RE 2

Interior

Basement None

Fireplace Features Living Room

Basement (Y/N) N

Window Features Double Pane Windows Window Coverings

Above Grade Finished Area 2958

Half Baths 0

3/4 Baths 0

Total Bedrooms 3

Below Grade Finished Area 0

Main Level Bedrooms 1

Main Level Bathrooms 2

Total Baths 3

Exterior

Lot Features Level

Water Source Public

Total Parking 0

Building Area Total 3258

Lot Size Acres 0.29

Road Surface Type Paved

Road Frontage Type Public

Internal Only

Street Number 1 3231

* Excluded Features

List By

Milehimodern - Boulder

Broker

(303) 817-9300

Phone

Affordability Calculator

$28,336

Per Month

Monthly Principal & Interest: $27,092
Monthly Property Taxes: $1,245
Monthly Home Insurance: --

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Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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Nearby

Trends
Schools

Single family listings in Boulder, CO

Average List Price ^$2,603,747

Percent of Sale Price 41%

About Boulder, CO

102,151 Population

6% Since 2002

^$65,436 Median Income

31.88 Median Age

18% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

1955676 Elementary School

1955678 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
3/27/2026	$4,400,000		Listed Price

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3231 11th Street, Boulder, CO, 80304 is a Single Family Home for sale at $4,400,000 with 3,258 sqft and a lot size of 0.29. 3231 11th Street has 3 bedrooms, 3.0 baths, and was built in 1900. The property's zip code is 80304 which is in Boulder, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

The data relating to real estate on this web site comes in part from the Internet Data eXchange (IDX) Program of the REcolorado. Real estate listings held by firms other than Weichert Realtors are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name.

The information being provided is 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.

Data is updated as of 4/1/2026.

This publication is designed to provide information with regard to 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.

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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.

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3231 11th Street

Single Family Home for sale in Boulder, CO

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