Denn Engineers is a land survey and civil design firm specializing in Residential and Commercial Surveying including Boundary, Topographic, ALTA, and AsBuilt Surveys; Subdivisions, including Tentative Maps, Final Maps, and Condominium Plans; Construction Staking and Certifications; Property Line Disputes; Lot Line Adjustments; and Legal Descriptions. We serve the South Bay in Los Angeles County, with a focus in Torrance, Redondo Beach, Hermosa Beach, Long Beach, El Segundo, Rolling Hills Estates