Distinctive features of Mission house plans include a Mission-shaped dormer or roof parapet, as well as stucco walls and a low-pitched red tile roof. Arches and twisted columns accentuate spaces. Like other Spanish forms, tile roofs and stucco exteriors are typical. Large porches supported by square columns are also prevalent. Undulating parapets and dormers with quatrefoil windows are the telltale markings of a Mission home.