Residential · Active

517 15th Street

Boulder, CO 80302

6 Beds · 7 Baths · 6,769 Sq Ft

$6,750,000

Single Family

Property Type

0.28 acres

Lot Size

2007

Year Built

$997

Price per Sq Ft

2

Parking Spaces

IR1070327

MLS #

About This Property

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.

11 days on market

Listed by Donald Cicchillo · RE/MAX Alliance-Boulder · 3038752241

Last updated: 10/18/2026 4:09 PM · Source: REcolorado®, MLS#: IR1070327

Virtual Tour

Property Details

Key Details

Property Type Residential
Sub Type Single Family Residence
Status Active
Price per Sq Ft $997
Subdivision Wellington Heights
MLS # IR1070327
Days on Market 11
Bedrooms 6
Full Baths 4
Half Baths 1
Three-Quarter Baths 2

More Details

Year Built 2007
Lot Size (Sq Ft) 12,060
Acres 0.28
HOA No
Annual Taxes $27,077
State CO
County Boulder
Zoning RES

Interior

Interior Features Eat-in Kitchen, Kitchen Island, Open Floorplan, Pantry, Vaulted Ceiling(s), Walk-In Closet(s), Wet Bar, Five Piece Bath
Heating Heat Pump, Radiant
Cooling Central Air
Fireplace Features Gas
Appliances Dishwasher, Dryer, Microwave, Oven, Refrigerator, Washer

Exterior & Parking

Exterior Features Balcony
Garage Yes
Garage Spaces 2
Roof Membrane

Building & Lot

Basement Full
Lot Features Level, Sprinklers In Front
Architectural Style Contemporary
Levels Two
Construction Stone, Stucco, Wood Siding
Sewer Public Sewer
Water Source Public

Location

Price History

DateEventPrice
10/9/2026 Listed for sale
Source: REcolorado® #IR1070327
$6,750,000 $997/sqft

Based on information submitted to the MLS GRID as of October 20, 2026 at 12:29 PM MDT. 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.

Listing information last updated October 18, 2026 at 4:09 PM.

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