Building project; application for extension of a building permit or preliminary decision

Building permits, partial building permits and preliminary decisions are only valid for a certain period of time.

If you are unable to start your approved project within 4 years, you can apply for an extension. If you do not receive planning permission for the same project within 4 years of receiving a preliminary decision, you can apply for an extension of the preliminary decision.

The extension period is up to four years, multiple extensions are possible.

Please give priority to using the online service offered via the button above for "Apply for extension of a building permit or preliminary decision online".
In the Forms section you will find the "FAQ on the digital building application procedure" and under the further links you will find the reference to our topic page "Building application procedure".

An extension of the period of validity of a building permit or partial building permit is to be assessed on the basis of the same requirements as the initial granting. The project must therefore still be subject to approval at the time of the lower building supervisory authority's decision on the extension. In addition, the project must comply with public law regulations, which must be examined in the approval procedure.

This applies accordingly to the extension of the preliminary decision.

If the legal situation changes after the permit or preliminary decision has been issued, the extension must be checked against the new legal situation.

Your building permit or partial building permit will expire if you have not started work on the project within 4 years of it being granted or if you have interrupted construction work for 4 years. Your application for renewal must be received by the responsible lower building supervisory authority before the expiry date. Receipt by the municipality is not sufficient to meet the deadline.

Your preliminary decision is valid for 4 years. Your application for extension must be received by the responsible lower building supervisory authority before the expiry of the period of validity. Receipt by the municipality is not sufficient to meet the deadline.

• FAQ on the digital planning application process

  All important questions about the digital building application process are answered in detail.

• Art. 69 Bavarian Building Regulations (BayBO)

  Period of validity of the building permit and the partial building permit

• Art. 71 Bavarian Building Regulations (BayBO)

  Preliminary decision

• Ordinance on the digital submission of building authority applications and notifications (Digital Building Application Ordinance - DBauV)

You can appeal to the administrative court against a decision by the lower building supervisory authority regarding the extension.

• Building application procedure

  Information on the application procedure, documents, etc.

Written submission

• Apply in writing to the responsible lower building supervisory authority to extend the validity of your building permit, partial building permit or preliminary decision.
• An oral application is not possible.
• The lower building supervisory authority will then decide on your application and inform you of the result.
• If the lower building supervisory authority only decides on your application after the expiry of the period of validity, your building permit, partial building permit or preliminary decision will become temporarily invalid. These will then only be reinstated once the lower building supervisory authority has made a positive decision.

Digital submission

Digital submission of applications for renewal is not yet possible throughout Bavaria. When selecting a location, the link to the online procedure will be displayed if it is already offered.

• The application for extension can be submitted digitally to the lower building supervisory authority using the online assistant.
• Attachments are uploaded in electronic form (files in PDF format) in the online assistant.
• The signatures are replaced by authentication using the "BayernID" user account or "My company account".

Apply for an extension in good time if it is foreseeable that the period of validity will not be sufficient.

The processing time depends on the scope and complexity of the project and the current workload of the lower building supervisory authority.

• Building project; application for a partial building permit
• Building project; application for a building permit
• Building project; application for a preliminary permit
• Building permit procedure; information on the processing status