Coastal Builders, Inc. No description specified. 1-2 (2 Records) Documents Archaeological Investigation: Tract No. 10343, MB 151-45-47, Portion of Lot 1, Santa Monica Mountains, Los Angeles County (1986) Archaeological Investigation: Tract Numbers 10595, 10596, 10544, and a Portion of Tract No. 10343, Santa Monica Mountains, Los Angeles County (1986)