517 15th Street Boulder, CO ^$ 6,750,000

517 15th Street

^$ 6,750,000

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Recently Listed

517 15th Street

Boulder, CO, 80302

^$ 6,750,000

Bedrooms6 Baths6.1 Sq 6,769

Monthly Estimate*

^$ 46,621

Listed by RE/MAX Alliance-Boulder

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Single Family Home for sale in Boulder, CO

for $6,750,000 with 6 bedrooms and 6 full baths, 1 half bath. This 6,769 square foot home was built in 2007 on a lot size of 0.28.

AUCTION: Bidder registration deadline: 4 November. Starting bids expected between $3M-$4M. Set just below the iconic Flatirons in the storied Chautauqua neighborhood, this 2008 residence by celebrated Boulder architect Harvey Hine, remodeled throughout in 2023, unites a restored 1914 stone cottage with a striking nautilus-shaped contemporary addition. A soaring 23-foot entry with a dramatic cantilevered staircase introduces an expansive open layout where historic character and modern design converge, finished with the finest custom details throughout. Gently curved walls, vaulted ceilings, and a kitchen that opens to a private deck create seamless indoor-outdoor flow, while a main-level primary suite offers two walk-in closets and a private office. Thoughtful landscaping ensures privacy, yet Chautauqua Park trails are just two blocks away and downtown Boulder dining is only minutes from the door.

Single Family Active

Price

^$ 6,750,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 27,077

Style

Contemporary

Lot Size

0.28

Year Built

2007

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1070327

Features

General

Living Area 6769

Sewer Public Sewer

Heating Heat Pump Radiant

Cooling Central Air

Utilities Cable Available Electricity Available Internet Access (Wired) Natural Gas Available

Roof Membrane

Appliances Dishwasher Dryer Microwave Oven Refrigerator Washer

Zoning RES

Garage Spaces 2

Patio/Porch Features Deck Patio

Architectural Style Contemporary

Construction Materials Stone Stucco Wood Frame

Year Built 2007

View Mountain(s)

Levels Two

Property Subtype Single Family Residence

Parcel Number R0007035

County Boulder

Property Type Residential

HOA N

Attached Garage N

Subdivision Name Wellington Heights

Facing Direction South

Possible Use Residential

Full Baths 4

High School Boulder

City Boulder

Senior Community Y/N N

High School District Boulder Valley RE 2

Lot Size Square Feet 12060

Elementary School Creekside

Property Attached Y/N N

Tax Annual Amount 27077

Middle/Junior High School Manhattan

Virtual Tour https://www.listingsmagic.com/sps/tour-slider/index.php?property_ID=286633

Standard Status Active

Elementary School District Boulder Valley RE 2

Freehold IDX

Interior

Interior Amenities Eat-in Kitchen Five Piece Bath Kitchen Island Open Floorplan Pantry Vaulted Ceiling(s) Walk-In Closet(s) Wet Bar

Basement Full

Fireplace Features Gas

Half Baths 1

3/4 Baths 2

Laundry Features In Unit

Total Bedrooms 6

Total Baths 7

Exterior

Exterior Amenities Balcony

Lot Features Level Sprinklers In Front

Water Source Public

Lot Size Acres 0.28

* Excluded Features

List By

Re/Max Alliance-Boulder

Broker

3038752241

Contact

Affordability Calculator

$48,877

Per Month

Monthly Principal & Interest: $46,621
Monthly Property Taxes: $2,256
Monthly Home Insurance: --

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Yearly Home Insurance

Default based on a 30-year fixed rate of 7.375% 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 ^$2,214,007

Percent of Sale Price 67%

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.

1957865 Elementary School

1957357 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
10/9/2026	$6,750,000		Listed Price

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517 15th Street, Boulder, CO, 80302 is a Single Family Home for sale at $6,750,000 with 6,769 sqft and a lot size of 0.28. 517 15th Street has 6 bedrooms, 6.1 baths, and was built in 2007. The property's zip code is 80302 which is in Boulder, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 7.375% 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 10/13/2026.

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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517 15th Street

Single Family Home for sale in Boulder, CO

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