This modern San Francisco home features a sculptural molded glass staircase

Geddes Ulinskas Architects recently completed a beautiful home in Cow Hollow, San Francisco, characterized by a beautiful molded glass staircase. Spanning 12,000 square feet on a 0.26-acre property, the home features abundant indoor and outdoor spaces and intricate stone details. Not to mention, it faces the Golden Gate Bridge!

Designer: Geddes Ulinskas Architects

“We were deeply inspired by the natural environment for the design of this house and tried to bring the outdoors in as much as possible,” says Geddes Ulinskas. The three-storey house is equipped with six bedrooms and is in fact several envelopes stacked on top of each other, which can be glazed throughout. The roof has a floating effect because the construction of the outer walls has been withdrawn and columns have been set in glass. This also creates a linear ribbon of bronze windows throughout the house.

A wooden 20 foot high door leads you into the house, while the smooth exterior walls with wood-wrapped eaves dangle over it. These form a nice contrast to the split limestone entrance. As you enter the home you are welcomed by a sitting area and adjoining dining room. The dining room opens to the garden through floor-to-ceiling sliding glass doors. These transparent glass doors provide an intimate connection between inside and outside. Materials such as wood and hand-textured stone were used to accent the interior, and they complement the bespoke paneling and blackened steel finishes.

“We used nature-inspired colors like charcoal and dark green with fixtures inspired by water ripples, lightning and other fractal shapes,” Ulinskas said.

The entire home is defined by impressive sliding glass doors, providing sweeping views of San Francisco and integrating indoor and outdoor living. Fabric was stretched across the ceiling to hide some of the technical equipment, creating clean lines and smooth surfaces. Though the star of the house is a magnificent steel-and-glass staircase that “reads more like a two-story piece of art than a construction product,” in the studio’s words. The sculptural staircase was brought to life by pouring molten glass into a 4-inch thick mold and then allowing the glass steps to cool for nearly three months.

The home is also equipped with a private movie theater, wine room, gym, 22-foot pool, built-in stainless steel spa, and wellness spa with glass-enclosed sauna and steam shower. A huge rooftop deck on top of the house offers views of San Francisco Bay and also features a stone fire table.

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