Mountain Homes Realty
Enter City, Zip or MLS

855 circle drive

Boulder, CO 80302

$5,750,000

4 BEDS 4 BATHS
3,791 SQFT
Residential - Single Family
Image 1: Charles Haertling chose this hillside address to build his family home in 1958. That decision is easy to understand on arrival: an elevated position, deep privacy, and a direct orientation toward the Flatirons that few properties in the city can match.
Image 2: The homes spaces orient directly toward Boulders iconic Flatirons, making the mountains a constant presence rather than a distant backdrop. The view evolves with the seasons and the hour - bathed in morning amber light, or blanketed with snow.
Image 3: The yard unfolds across expansive stone patios, grassy lawn, and terraced garden beds, with the Flatirons framed in full view above.
Image 4: The home today was designed with a European sensibility woven through every detail: the covered entry porch, the custom woodwork, the perimeter lighting, the built-in shelving that runs through room after room.
Bedrooms 4
Total Baths 4
Full Baths 1
Square Feet 3791
Status Active
MLS # IR1057941
County Boulder
More Info
Category Residential - Single Family
Status Active
Square Feet 3791
MLS # IR1057941
County Boulder
Listed By: Listing Agent The Zach Zeldner Team
Compass - Boulder - (720) 480-7650
Some homes offer a view. 855 Circle Drive offers an escape - with the Flatirons and foothills as your backdrop. Tucked into a private hillside just below Flagstaff Mountain, 855 Circle Dr sits in a world of its own, sheltered by mature trees, wrapped in stillness, yet moments from the heart of Boulder. The Flatirons rise directly in front of you. Trailheads begin nearby. And the sounds of the city simply don't reach you here. This is the setting that renowned Boulder architect Charles Haertling chose for his own personal residence - and that provenance speaks for itself. The home's clean modern exterior gives way to an interior of remarkable warmth, with tongue-and-groove ceilings, exposed beams, hardwood floors, custom woodwork, and skylights that flood the space with natural light throughout the day. Every window is a frame for the landscape beyond. On the upper level, an open-concept living, dining, and kitchen layout flows toward large sliding glass doors that open onto a south-facing terrace oriented directly at the Flatirons. The primary suite offers Flatiron views, patio access, a five-piece bath, and walk-in closet. A dedicated office and a deck off the kitchen overlooking the city complete the level. The outdoor spaces are exceptional: stone patios, terraced gardens, and meandering mature landscaping including cherry and apple trees that bloom in spring, offer shade in summer, and glow in autumn. The grounds feel like a private nature preserve, designed for quiet mornings & golden-hour evenings. Whether you're entertaining on the terrace, setting out on a trail at dawn, or simply embracing the stillness, the outdoor life here is extraordinary. 855 Circle Drive requires nothing of you except to arrive and settle in. With 3,791 sqft across two well-conceived levels, including a spacious family room, three additional bedrooms, a guest suite, and flexible work-from-home spaces, the home functions beautifully for everyday living and generous hosting alike.
Location not available
Listing
Street
Satellite

Exterior Features

  • Construction Single Family Residence
  • Siding Brick, Stucco
  • Exterior Balcony
  • Roof Membrane
  • Garage No
  • Water Public
  • Sewer Public Sewer

Interior Features

  • Appliances Dishwasher, Disposal, Double Oven, Dryer, Microwave, Oven, Refrigerator, Washer
  • Heating Baseboard
  • Cooling Air Conditioning-Room
  • Living Area 3,791 SQFT
  • Year Built 1958

Neighborhood & Schools

  • Subdivision Flatirons Park
  • Elementary School Flatirons
  • Middle School Manhattan
  • High School Boulder

Financial Information

  • Parcel ID R0003317
  • Zoning SFR

Additional Services

Internet Service Providers

Listing Information

Listing Provided Courtesy of Compass - Boulder - (720) 480-7650
Listings courtesy of the RE Colorado MLS as distributed by MLS GRID.

IDX information is provided exclusively for consumers’ personal noncommercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interestedin purchasing, that the data is deemed reliable but is not guaranteed by MLS GRID, and that the use of the MLS GRID Data may be subject to an end user license agreement prescribed by the Member Participant's applicable MLS if any and as amended from time to time. MLS GRID may, at its discretion, require use of other disclaimers as necessary to protect Member Participant, and/or their MLS from liability.

Based on information submitted to the MLS GRID as of 07/06/2026 03:17:29 UTC. 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.

The Digital Millennium Copyright Act of 1998, 17 U.S.C. § 512 (the "DMCA") provides recourse for copyright owners who believe that material appearing on the Internet infringes their rights under U.S. copyright law. If you believe in good faith that any content or material made available in connection with our website or services infringes your copyright, you (or your agent) may send us a notice requesting that the content or material be removed, or access to it blocked. Notices must be sent in writing by email to: DMCAnotice@MLSGrid.com.

The DMCA requires that your notice of alleged copyright infringement include the following information: (1) description of the copyrighted work that is the subject of claimed infringement; (2) description of the alleged infringing content and information sufficient to permit us to locate the content; (3) contact information for you, including your address, telephone number and email address; (4) a statement by you that you have a good faith belief that the content in the manner complained of is not authorized by the copyright owner, or its agent, or by the operation of any law; (5) a statement by you, signed under penalty of perjury, that the information in the notification is accurate and that you have the authority to enforce the copyrights that are claimed to be infringed; and (6) a physical or electronic signature of the copyright owner or a person authorized to act on the copyright owner’s behalf. Failure to include all of the above information may result in the delay of the processing of your complaint.

© 2026 RE Colorado MLS, Inc.
Listing data is current as of 07/06/2026.

Contact Our Agent

By clicking “Submit,” I agree to be contacted by Lake Homes Realty, LLC, its affiliates, and real estate professionals via call, text, and email for real estate services. This includes by automated means, even if your number is on a federal, state, or our internal Do Not Call list. To opt out, you can reply "stop" at any time or reply "help" for assistance. You can also click the unsubscribe link in the emails. Message and data rates may apply. Message frequency may vary. You also agree to our Terms of Use and Privacy Policy.