The Oberfeld Residence in Los Angeles, California was designed by SPF:architects. The house is cut into a steep hillside with large concrete retaining walls to hold up the hill behind. In plan, the structure is an L-shape. Back at the house from its generous private landscape, a transparent glass main level is topped by the master and family bedrooms – also clad in glass, but shielded from the sun’s intensity by a series of custom-designed vertical louvers, cut from the same Swiss pearl concrete panel material that screens the street façade of the home. The home’s grand entry boasts an oversized wood door, pivoting into a courtyard-like foyer, flooded with natural light.