Olson & De Tilla Associates

DeTilla & Associates is a land surveying and land planning firm that engages in a fairly wide variety of projects that are primarily related to either commercial or residential land development. DeTilla & Associates and its predecessors Olson & DeTilla Associates and Olson Surveying Service have been meeting the needs of many clients in Southern California for over 60 years. It was truly a pleasure serving the Greater Los Angeles community for so many years. We are delighted to announce that our office has relocated to San Luis Obispo County as of September 2019.