Mixed-Use Building with four-level Subterranean Garage

Santa Monica, California

Geotechnical investigation and construction observation and testing at the site of an existing six-story landmark building with ground floor retail on the corner of Wilshire Boulevard and 7^th Street. The new structure is deeper than the previous one with higher structural loading, consisting of a new six-story structure with a roof terrace over four to five levels of subterranean parking garage extending 52 feet below ground surface. The project involved excavating next to a historical hotel was investigated with a temporary shoring (steel H beams) and tie-back systems. This development required the adaptive reuse of a designated historical landmark, the Santa Monica Professional Building and a new convention center directly to the south. The new building will provide retail space, restaurants meeting rooms and hotel guest rooms above the second floor. It combines a new 165,000 square foot, 285-room hotel, 15,600 square feet of retail and restaurant space, flexible conference and banquet rooms, and ground floor open-air paseo.