The Building Regulations and Real Estate Office (Bauordnungs- und Liegenschaftsamt, only in German available) in the city of Troisdorf tells you everything you need to know about building on the following pages.

You will find numerous building-related keywords under Life event "Building in Troisdorf" (only in German available).  Official preprinted forms (only in German available) and handouts - each in PDF format - and practical links complement our range of services.