germany-hamburg: heating, ventilation and air-conditioning installation work./ heating, kamminer strasse 4./ the kamminer straße primary school is located in the rahlstedt district of hamburg. the construction measure includes a three-storey replacement building with a total of 18 classrooms and specialist classrooms plus ancillary rooms. the gfa of the building is approx. 4,800m². the construction site can be approached via hermann-balk-straße independently of school operations. however, this driveway can only be used to a limited extent due to a gateway and a stock of trees that is worth protecting.