Surveying; carrying out a building survey

Buildings represent a considerable value. Moreover, maps without buildings are practically worthless. The Offices for Digitization, Broadband and Surveying are therefore required by law to document buildings in the real estate cadastre.


In addition to land, the real estate cadastre also records the building stock. The buildings are displayed and described in the official real estate cadastre information system (ALKIS).

The record of buildings in the real estate cadastre is a valuable contribution by the Digitization, Broadband and Surveying Offices to securing ownership (and thus to legal certainty) and to planning by public or private bodies.

The offices for digitization, broadband and surveying record all changes in the building stock (for example, new buildings, demolitions, extensions, changes in use) as promptly as possible. This includes the floor plan as well as building heights and roof shapes. The surveying of buildings is a statutory task and is therefore carried out ex officio without the need for an application. The Surveying and Cadastral Act obliges the building owners to bear the costs of the surveying and cadastral treatment of the building change.

If you have commissioned an inspection expert for surveying in the construction industry to supervise your building project, or if you intend to do so, the expert can also carry out the building surveying under certain conditions. For more information, please contact your local Office for Digitization, Broadband and Surveying.




  • see "Ordinance on the User Fees of the Lower Surveying Authorities (GebOVerm)".


Administrative court proceedings; information

administrative claim

Status: 01.07.2022

Responsible for editing: Landesamt für Digitalisierung, Breitband und Vermessung

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