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.
For sale
$5,750,000
855 Circle Dr, Boulder, CO 80302
4beds
3,791sqft
Single Family Residence
Built in 1958
0.33 Acres Lot
$-- Zestimate®
$1,517/sqft
$-- HOA
What's special
- 64 days |
- 733 |
- 27 |
Zillow last checked:
Listing updated:
Listed by:
The Zach Zeldner Team 720-480-7650,
Compass - Boulder,
Zachary Zeldner 720-480-7650,
Compass - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1057941
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 1
- 3/4 bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 3
Primary bedroom
- Description: Wood
- Features: Full Primary Bath, Luxury Features Primary Bath, Bidet
- Level: Upper
- Area: 242 Square Feet
- Dimensions: 22 x 11
Bedroom 2
- Description: Wood
- Level: Main
- Area: 121 Square Feet
- Dimensions: 11 x 11
Bedroom 3
- Description: Wood
- Level: Main
- Area: 99 Square Feet
- Dimensions: 9 x 11
Bedroom 4
- Description: Tile
- Level: Main
- Area: 247 Square Feet
- Dimensions: 19 x 13
Dining room
- Description: Wood
- Level: Upper
- Area: 210 Square Feet
- Dimensions: 15 x 14
Family room
- Description: Wood
- Level: Main
- Area: 210 Square Feet
- Dimensions: 14 x 15
Kitchen
- Description: Wood
- Level: Upper
- Area: 288 Square Feet
- Dimensions: 18 x 16
Laundry
- Description: Tile
- Level: Main
- Area: 88 Square Feet
- Dimensions: 8 x 11
Living room
- Description: Wood
- Level: Upper
- Area: 345 Square Feet
- Dimensions: 23 x 15
Study
- Description: Wood
- Level: Upper
- Area: 156 Square Feet
- Dimensions: 12 x 13
Heating
- Baseboard
Cooling
- Wall/Window Unit(s)
Appliances
- Included: Electric Range, Double Oven, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal
Features
- Eat-in Kitchen, Separate Dining Room, Open Floorplan, Walk-In Closet(s), Beamed Ceilings
- Flooring: Wood
- Doors: French Doors
- Windows: Skylight(s), Window Coverings, Wood Frames
- Basement: None,Built-In Radon
Interior area
- Total structure area: 3,791
- Total interior livable area: 3,791 sqft
- Finished area above ground: 3,791
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached
- Attached garage spaces: 2
- Details: Attached
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Balcony
- Fencing: Fenced
- Has view: Yes
- View description: Hills, Plains View, City
Lot
- Size: 0.33 Acres
- Features: Evergreen Trees, Deciduous Trees
Details
- Parcel number: R0003317
- Zoning: SFR
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Brick, Stucco
- Roof: Rubber
Condition
- New construction: No
- Year built: 1958
Utilities & green energy
- Electric: XCEL
- Gas: XCEL
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Southern Exposure, Windows
Community & HOA
Community
- Security: Fire Alarm
- Subdivision: Flatirons Park
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $1,517/sqft
- Tax assessed value: $3,362,400
- Annual tax amount: $20,038
- Date on market: 4/30/2026
- Listing terms: Cash,Conventional
- Exclusions: Owner's Personal Property
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 5/4/2026 | Listed for sale | $5,750,000+15.1%$1,517/sqft |
Source:  IRES as distributed by MLS GRID #1057941 Report a problem | ||
| 4/20/2022 | Sold | $4,995,000$1,318/sqft |
Source: IRES as distributed by MLS GRID #959726 Report a problem | ||
| 2/28/2022 | Listed for sale | $4,995,000-0.1%$1,318/sqft |
Source: IRES as distributed by MLS GRID #959726 Report a problem | ||
| 1/4/2022 | Listing removed | -- |
Source:  RE/MAX International Report a problem | ||
| 9/1/2021 | Price change | $5,000,000-7.4%$1,319/sqft |
Source: IRES as distributed by MLS GRID #950018 Report a problem | ||
| 8/26/2021 | Listed for sale | $5,400,000$1,424/sqft |
Source: RE/MAX International #941538 Report a problem | ||
| 8/17/2021 | Listing removed | -- |
Source: RE/MAX International Report a problem | ||
| 5/28/2021 | Listed for sale | $5,400,000$1,424/sqft |
Source: IRES as distributed by MLS GRID #941538 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $18,927 +1.8% | $210,150 -4.1% |
| 2024 | $18,599 -1.8% | $219,050 -1% |
| 2023 | $18,947 +4.9% | $221,175 +8.4% |
| 2022 | $18,067 +6.6% | $204,031 -2.8% |
| 2021 | $16,948 | $209,903 +7.8% |
| 2020 | $16,948 +12.5% | $194,702 |
| 2019 | $15,071 | $194,702 +12% |
| 2018 | $15,071 | $173,830 -9.5% |
| 2017 | $15,071 +15.1% | $192,178 +27.1% |
| 2016 | $13,093 +5.6% | $151,256 -11% |
| 2015 | $12,399 -13.2% | $169,875 |
| 2014 | $14,283 +13.9% | $169,875 |
| 2013 | $12,536 +0.9% | $169,875 +13.5% |
| 2012 | $12,426 -9.4% | $149,648 |
| 2011 | $13,719 +7.1% | -- |
| 2010 | $12,810 +11.9% | $169,740 |
| 2009 | $11,450 +3.5% | $169,740 -5.1% |
| 2008 | $11,060 +15.9% | $178,950 |
| 2007 | $9,543 +3.9% | $178,950 +19.8% |
| 2006 | $9,188 +4.3% | $149,330 |
| 2005 | $8,807 +0.7% | $149,330 +3.6% |
| 2004 | $8,745 -7.1% | $144,150 |
| 2003 | $9,414 +10.3% | $144,150 +6.8% |
| 2002 | $8,533 | $134,910 -90.8% |
| 2001 | -- | $1,474,400 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Grant
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 0.4 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 3.3 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 1 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- Colorado
- Boulder County
- Boulder
- 80302
- Grant
- 855 Circle Dr
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