Carved into the slope of Boulder's iconic Flatirons, this architectural residence represents a level of craftsmanship and execution whose true cost far exceeds what could be reproduced today, with replacement economics now well beyond $20,000,000. Homes of this scale and quality are no longer achievable in Boulder. Privately gated at the summit of Bellevue Drive, Boulder's most exclusive residential street, the home commands protected views across Chautauqua Park and the Flatirons. The setting is permanent and private. Spanning over 8,000 square feet, the residence was built without compromise. Flagstone echoing the Flatirons, hand-worked copper, Honduran mahogany, and walls of green sea glass reflect a level of material selection and execution rarely seen today. Architecture shaped by terrain and light, engineered for permanence rather than trend. The scale and quality are best understood in person. A separately sited guest residence under the same ownership may be incorporated by discussion, offering flexibility while allowing the primary residence to stand on its own. Direct access to Chautauqua Park, protected since the 1800s, ensures the surroundings remain untouched. Live privately. Create freely. Own what cannot be rebuilt.
Listing Office: Madison & Company Properties - Boulder
Cable Available, Electricity Available, Internet Access (Wired), Natural Gas Available
Heated Garage, Oversized, Tandem
Five Piece Bath, Kitchen Island, Open Floorplan, Pantry, Walk-In Closet(s), Wet Bar
Bar Fridge, Dishwasher, Dryer, Freezer, Microwave, Oven, Refrigerator, Washer
Family Room, Gas, Living Room
Balcony, Gas Grill, Spa/Hot Tub
Level, Meadow, Open Space, Rock Outcropping, Sprinklers In Front
Skylight(s), Triple Pane Windows, Window Coverings
Madison & Company Properties - Boulder
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Listing information last updated on February 16th, 2026 at 11:03am MST.