Landmark Surveying, Inc. is a small size land surveying firm providing land surveying services throughout southern California for more than 30 years. Since 1978, LSI has provided land surveying services ranging from construction staking for the nation's largest homebuilders and construction companies to forensic surveys of high profile landslide and automobile accident scenes to individual residential property surveys for rear yard fence reconstruction. Whether you drive the route 241 toll road or ride Disney's California Adventure roller coaster, we have provided the land surveying services necessary to transform those projects from visionary dreams to realities.