Alloy Santa Fe

Located on the west end of the 4th Street Bridge, Alloy Santa Fe is the first high-rise structure in LA’s Historic Arts District. The development features a five level commercial building and a 36 level residential tower above six levels of parking and mixed-use, three of which are below grade. Parking levels hold a total of 748 stalls for the 105,000sf of creative office space and the 475 units of residential. The tower rises at a 45 degrees from the podium deck creating an architectural statement and adding to the complexity of the project.

Parking levels are 100,000sf and 33,000sf of shotcrete walls installed along a majority of the basement perimeter. ORCA aggregate from British Columbia was used to accommodate the thermal requirements in the foundation, specified modulus of elasticity (MOE) in the decks, and high strength of 12,000PSI vertical elements. Core walls in the tower are up to 42in thick and were formed with a self-climbing system.

Decorative board-formed, exposed architectural concrete can be found throughout the development. From the main lobby soffit to the residential and office columns, to the sauna and cabanas at the roof deck pool, the finish is prominent throughout. The most striking board-formed features is the amoeba-shaped void in the roof deck referred to as the ‘Oculus.’ Each plank was prepared, sealed and used once for the highest quality finish and then repurposed as toe boards and for other safety measures to reduce waste.

Of 1,191 total columns, there are 90 unique column dimensions! Two unique columns are irregular hexagonal shaped and located along Mateo on the west side of the development. The largest measuring 5’3”, these columns also feature a vertical board formed finish terminating at a beam with the same horizontal finish.Quality control was critical to ensure the correct elements received the proper finish. Extra care was taken when landing materials and placing rebar to ensure the finish was not compromised. Once placed and stripped, these elements were protected to prevent trade damage.

Overall the project calls for over 68,00CY to be placed with Largo is working with owner/builder Carmel Partners, Solomon Cordwell Buenz architects and Englekirk structural engineers on this iconic project.