Grundbuchauszug (land register extract) at the Amtsgericht (local court)
The hurdle is not the fee but access
The Grundbuchamt (land registry) is not a separate authority: under § 1 GBO, the land registers are kept by the local courts (Amtsgericht), specifically for the plots of land located within their district. If you enter “Grundbuchamt” into a search engine, you therefore end up at the Amtsgericht — it is the same body under a functional name.
The real hurdle is not the fee but access. The Grundbuch (land register) is not a public register like the Handelsregister (commercial register). § 12 Abs. 1 GBO provides: “Inspection of the land register is permitted to anyone who demonstrates a legitimate interest.” Anyone who merely wants to know who owns a house does not, as a rule, have this interest — curiosity is not enough, and a mere wish to purchase is generally not enough either.
A legitimate interest is held by anyone who is themselves the owner or heir, who is entered in the Grundbuch, who pursues a specific right to the plot of land — for example, a creditor with an enforceable title — or who demonstrates a serious, provable interest in acquiring it with the owner's consent. Notaries, courts and authorities have it by virtue of their office.
