855 Circle Drive, Boulder, CO 80305
Bedrooms
Bathrooms
Sq.Ft.
4 Beds 4 Baths 3,791 Sq.Ft. 14,209 Sq.Ft.
The Setting
855 Circle Drive sits on a peaceful and private street just below Flagstaff Mountain, where the city gives way to canyon topography and mature tree cover. Flagstaff trails begin at the end of the street and Chautauqua is minutes away. A testament to the location, 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. Downtown Boulder, CU, and South Boulder remain within easy reach, but the tranquility and Flatiron views define the experience here.
Framing the Flatirons
The home’s spaces orient directly toward Boulder’s 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 - and the home is positioned to capture it continuously.
Design and Architecture
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. Inside, tongue-and-groove ceilings with exposed beams carry through the main living spaces, skylights draw light deep into the interior, and hardwood floors and brick accent walls give the rooms a warmth and craft that sits in deliberate contrast to the clean stucco exterior, the large expanses of glass, and the flat-roofed modern profile. The result is a home that reads quietly contemporary from the outside and warmly finished within.
The Upper Living Level
The primary gathering spaces sit on the upper floor, organized around an open plan that flows from the living room and sitting areas through the dining room to the kitchen. Large sliding glass doors connect the living room directly to the south-facing terraced patio, with the Flatirons filling the view beyond. The kitchen wraps generously around its perimeter, with space for informal dining or an island in the center, and sliding doors that can close it off from the dining room when the occasion calls for it. A deck off the kitchen faces the city below. A dedicated office or library sits just off the main spaces, while the primary suite is privately tucked away and offers its own Flatiron views, patio access, five-piece bathroom, and walk-in closet.
The Main Level
Entry arrives at the main level, where a foyer with storage leads into a family room finished with hardwood floors and custom built-in shelving. Three additional bedrooms occupy this floor: one with a walk-in closet and ensuite bathroom, one with a built-in Murphy bed surrounded by shelving, ideal for guests or a flex space that earns its square footage. Two three-quarter bathrooms and a powder room serve the floor. Mini-splits provide individual climate control in each bedroom. A laundry and mudroom with built-ins, utility sink, and bench connects directly to the attached two-car garage.
The Grounds
This is a property designed to be lived in from the outside as much as from within. The home welcomes you through stone walkways to a large covered front porch. In the back, the yard unfolds across expansive stone patios, grassy lawn, and terraced garden beds, with the Flatirons framed in full view above. Cherry and apple trees ring the property, and their rhythm tracks the seasons: bare in winter, allowing open views and more natural light, then blooming in spring before leafing out to shade the patios from the summer sun. A water feature adds movement, and the enclosure created by the mature plantings makes the space feel private and removed from neighbors. In the morning, when the light hits the Flatirons and the city is still quiet, there's nowhere else you'd want to be.
The Life It Offers
Life at 855 Circle Drive is shaped by its relationship to the surrounding landscape. The Flatirons remain in constant view, outdoor spaces are usable and private, and access to trails becomes part of the daily rhythm. The home is organized to support both connection and separation, with primary living spaces oriented toward light and views, and quieter areas positioned for retreat. It is a setting where location and design work together, creating a way of living that is grounded in Boulder’s foothills.
The Setting
855 Circle Drive sits on a peaceful and private street just below Flagstaff Mountain, where the city gives way to canyon topography and mature tree cover. Flagstaff trails begin at the end of the street and Chautauqua is minutes away. A testament to the location, 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. Downtown Boulder, CU, and South Boulder remain within easy reach, but the tranquility and Flatiron views define the experience here.
Framing the Flatirons
The home’s spaces orient directly toward Boulder’s 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 - and the home is positioned to capture it continuously.
Design and Architecture
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. Inside, tongue-and-groove ceilings with exposed beams carry through the main living spaces, skylights draw light deep into the interior, and hardwood floors and brick accent walls give the rooms a warmth and craft that sits in deliberate contrast to the clean stucco exterior, the large expanses of glass, and the flat-roofed modern profile. The result is a home that reads quietly contemporary from the outside and warmly finished within.
The Upper Living Level
The primary gathering spaces sit on the upper floor, organized around an open plan that flows from the living room and sitting areas through the dining room to the kitchen. Large sliding glass doors connect the living room directly to the south-facing terraced patio, with the Flatirons filling the view beyond. The kitchen wraps generously around its perimeter, with space for informal dining or an island in the center, and sliding doors that can close it off from the dining room when the occasion calls for it. A deck off the kitchen faces the city below. A dedicated office or library sits just off the main spaces, while the primary suite is privately tucked away and offers its own Flatiron views, patio access, five-piece bathroom, and walk-in closet.
The Main Level
Entry arrives at the main level, where a foyer with storage leads into a family room finished with hardwood floors and custom built-in shelving. Three additional bedrooms occupy this floor: one with a walk-in closet and ensuite bathroom, one with a built-in Murphy bed surrounded by shelving, ideal for guests or a flex space that earns its square footage. Two three-quarter bathrooms and a powder room serve the floor. Mini-splits provide individual climate control in each bedroom. A laundry and mudroom with built-ins, utility sink, and bench connects directly to the attached two-car garage.
The Grounds
This is a property designed to be lived in from the outside as much as from within. The home welcomes you through stone walkways to a large covered front porch. In the back, the yard unfolds across expansive stone patios, grassy lawn, and terraced garden beds, with the Flatirons framed in full view above. Cherry and apple trees ring the property, and their rhythm tracks the seasons: bare in winter, allowing open views and more natural light, then blooming in spring before leafing out to shade the patios from the summer sun. A water feature adds movement, and the enclosure created by the mature plantings makes the space feel private and removed from neighbors. In the morning, when the light hits the Flatirons and the city is still quiet, there's nowhere else you'd want to be.
The Life It Offers
Life at 855 Circle Drive is shaped by its relationship to the surrounding landscape. The Flatirons remain in constant view, outdoor spaces are usable and private, and access to trails becomes part of the daily rhythm. The home is organized to support both connection and separation, with primary living spaces oriented toward light and views, and quieter areas positioned for retreat. It is a setting where location and design work together, creating a way of living that is grounded in Boulder’s foothills.
4
beds
4
baths
3,791 Sq.Ft. LIVING AREA
14,209 Sq.Ft. lot
Boulder's iconic foothills neighborhood with direct access to Chautauqua Park and the Flatirons trails.
ExploreThe Zach Zeldner Team is Boulder County's #1 Real Estate team. With $1.5B in sales since 2019, they combine concierge-level service and specialized in-house support to deliver exceptional results through unrivaled market expertise and relentless client advocacy.