Thomas studied landscape planning at the Technical University of Berlin and wrote his doctorate thesis on "Cultural landscape as a planning concept".
Since 20 years he is working as a freelance landscape planner with a focus on cultural landscape inventories and reports for monument preservation. He has an office in Morschen (Hesse, Schwalm-Eder County).
Since 2021, Thomas works as scientific assistant of the Bavarian State Association for Homeland Care. There, he is responsible for the content-related support of voluntarily active persons who use a web GIS database to record landscape elements