D. Claas Birkemeyer is a partner of the firm. He specialises in advising on the development and marketing of real estate. His areas of practice include public and private construction law and real estate law. He stands for efficient project development from the approval, planning, construction phase and project realisation to the transfer of land. His clients include investors, project developers, planners and construction companies, but also local authorities and private individuals. Dr Birkemeyer has extensive experience in the siting of facilities, especially in the fields of wind energy, retail stores, industrial plants and residential construction. In addition, Dr Birkemeyer is a lecturer at the University of Bielefeld and publishes.