328 Cumberland, Dolores Heights

FORMA Construction was the developer and contractor for this San Francisco home renovation and remodel. FORMA Construction meticulously rebuilt 328 Cumberland over five years, perched on the most sought-after block in Dolores Heights. The design and construction team overcame impressive obstacles to expand from 1,500 to 4,300 square feet, transforming the zero-lot line home and necessitating the strategic underpinning of neighboring structures to create an additional subterranean level beneath the garage. This impressive home renovation and remodel included infrastructural upgrades, which involved meticulously excavating 650 cubic yards of soil, equivalent to approximately 80 substantial transport trucks. It also required drilling 21 piles at depths of 40 to 50 feet and 26 piers descending 25 feet; the endeavor demanded 300 yards of concrete (equal to 33 concrete trucks).

The team thoughtfully integrated every facet of this family home, incorporating cutting-edge AV solutions and sophisticated lighting controls, transforming the outdated house into a luxury residence. They expanded outdoor spaces on each level, adding the home’s crown jewel—an enviable rooftop terrace with glass railings that preserve the uninterrupted, captivating views of San Francisco.

Architect
Hood Thomas Architects

Interior Design
Geoffrey De Sousa; De Sousa Hughes

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The first steps to preparing this home for modern-day living was expanding. The zero-lot line presented us with an impossible task but our team embraced it. The expansion alone took 11 months to complete.

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Early stages of underpinning—a construction technique used to strengthen the foundation of an existing structure. This is a critical process in order to maintain the structural integrity of a building.

Our team excavated 650 cubic yards of soil which is equivalent to approximately 80 transport trucks. 21 piles were drilled at depths of 40 to 50 feet and 26 piers were added that descended 25 feet.

The rear facade during different stages in construction. From Framing to the end result, it took five years to complete this project due to COVID-19 restrictions and more!

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300 yards of concrete were poured into the foundation to ensure a solid structure. This is equal to 33 concrete trucks. To further fortify the property's perimeter, 1,880 linear feet of steel soldier beams were embedded into the foundation.

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