Perched atop a hill in the Los Feliz neighborhood, it is among the best residential examples of Mayan Revival architecture in the country. The Ennis House rises in stages, with over 27,000 blocks arranged across a concrete platform and buttressed by a retaining wall. Though concrete was still considered a new material in the 1920s, especially for home construction, Wright believed it had promising potential for affordable housing. He created a block construction system with patterned surfaces, which lended a unique textural appearance to both the exteriors and interiors of his residences. The concrete—a combination of gravel, granite and sand from the site—was hand-cast in aluminum molds to create blocks measuring 16”x 16” x 3.5” that were then woven together with steel rods, giving the textile block houses their name. The Ennis House is unusually monumental and vertical for a Wright residence, but when the architect completed it in 1924 he immediately considered it his favorite.