Advice on building law

Building permit

As a rule, you need planning permission from the lower building supervisory authority for construction measures such as new builds, extensions or conversions, as well as for changes of use.

Acceptance of temporary structures

Temporary structures must obtain a construction licence before being erected for the first time. As a rule, the installation must be notified at least one week in advance.

Apply for house number allocation

In the event of structural changes, house numbers are assigned ex officio. Additional house numbers can be issued or existing properties renumbered on request.

Construction measures in public transport areas

Anyone who digs up the ground on public paths, roads or squares, stores or sets up anything, blocks off areas or lays pipes requires a permit.

Neighbour signatures for building application

Approval of construction projects where the city is a neighbouring property owner.

Preservation statutes - authorisation of construction measures

You need a permit for structural alterations, changes of use or the demolition of living space in a conservation area.

Access to construction files for finance & sales (central registry)

If you need to inspect the building files for buying and selling, financing, valuation or property management matters, you can view them on site

Building consultancy for ongoing construction projects

Information on current planning permission procedures can be obtained directly from the responsible clerk.

Advice on neighbour's signature for building application

Owners of neighbouring properties must be involved in the approval process.

Show construction measures not requiring a procedure