Perched atop Sunshine Canyon sits one of Boulder, Colorado's most architecturally significant homes, a curved, secluded sanctuary where 270-degree views fill every room. Sprawling interiors feature bespoke craftsmanship, premium finishes and a sun-drenched ambiance across three bedrooms, four bathrooms, two home offices and jaw-dropping entertaining spaces.

Designed by ACI Design: Built with energy-saving materials and advanced construction techniques, this 5,111 square-foot residence is centered around a radial courtyard and draped in a stucco and stone façade that melds with the surrounding foothills. The unique layout, reminiscent of Fibonacci's golden spiral, conveys a welcoming embrace while sheltering the home from alpine winds and capturing all-day sunlight. Walls of glass frame unparalleled vistas that stretch from the eastern plains, across the Boulder skyline and Flatirons, west to the Indian Peaks Wilderness. Wraparound patios welcome a seamless indoor-outdoor lifestyle, while a mixed materials palette of fine wood and stone accents infuses nature into the bright and airy interiors.

From the minimalist courtyard, a gracious foyer invites you to discover soaring exposed beams ceilings that rise over wide-plank hardwood floors and wood-framed, floor-to-ceiling windows. In the sprawling great room, a peninsula fireplace encased in stone creates a natural divider between generous living and dining areas, while south-facing views provide a mesmerizing backdrop to gracious entertaining. Ahead, the open kitchen impresses with sleek cabinetry and black granite countertops. Upscale appliances include a Wolf cooktop, Miele steam and convection oven, and a Jenn-Air French door refrigerator/freezer. A glass door opens to the upper-level deck, making outdoor entertaining irresistible.

Travel counterclockwise from the great room to explore the exquisite primary suite, featuring a massive custom closet, and a spa bathroom with a soaking tub, curbless shower and a double vanity. Two home offices on this level enjoy easy access to two ¾ guest bathrooms with illuminated sinks. An enclosed media room and a windowed laundry room complete the upper floor. Down the lighted staircase, the lower level offers an oversized family room, two additional bedrooms and another well-appointed spa bathroom.

Heated four-car garages on each level, plus a circular drive and courtyard, are perfect for the car collector or hobbyist mechanic who will appreciate epoxy floors, an in-floor hydraulic lift, a workshop area and extra storage. Radiant-heat floors throughout the house and garages, PV and thermal solar panels, automated sun shades, a humidification system and a whole-house reverse osmosis water system with a UV filter add comfort and convenience to this unrivaled Boulder masterpiece.

Located 4.5 miles up Sunshine Canyon, this ultra-private home is just 12 minutes from Downtown and Pearl Street amenities.Having been built in the burn area of the 2010 Fourmile Canyon Fire, this beautifully constructed home enjoys surroundings with extremely low fire danger.