Verlängerung der Baugenehmigung für die Änderung einer Anlage beantragen

If you have a valid building permit that is about to expire, you can apply for an extension of the building permit.

The building permit expires if you have not started construction work three years after it was issued or if construction work has been interrupted for more than one year.

If you have a valid building permit that is about to expire or it is foreseeable that construction work will be interrupted for more than three years, you can apply for an extension of the building permit.

The period of validity of the building permit can be extended by a maximum of three years at a time.

• You have already received planning permission for your building project.
• Your building project complies with public law regulations.

50 % of the fee for the decision to be extended, up to a maximum of 2,000 euros

You can apply for the extension of a building permit electronically via the online service or in writing on paper using the form.

Proceed as follows when using the online service:

• Log in with your user account. To apply as a private individual, you need a BundID account. If you are applying on behalf of an organization (company, public authority, etc.), you will need a "My company account".
• Complete the online form.
• Add the required building documents.
• Submit the application documents to the responsible lower building supervisory authority.
• If necessary, the lower building supervisory authority will ask you to pay the fees in advance.
• Make the advance payment.
• If documents are missing or there are other ambiguities, you will be asked to rectify these.
• In this case, submit the missing or amended documents and/or the clarification.
• The lower building supervisory authority will review your application and involve the relevant authorities whose participation or consultation is required.
• You will then receive the building permit and a notification of fees.
• You pay the fees.

The extension of the building permit for the modification of installations requires a timely application. If you find that your original planning permission for your installation is due to expire or that the construction work cannot be completed within the specified period, you should apply for an extension in good time. Failure to do so may result in the permit being decommissioned or withdrawn, which can lead to significant delays and additional costs.

It should be noted that the construction, modification or change of use of a building without the required building permit constitutes an administrative offense and can be punished with a fine. There is also the risk that an unauthorized construction project that has been started may be stopped or its use prohibited. Furthermore, removal can be ordered.

If you have a building permit, you must submit a notification of commencement of construction to the lower building supervisory authority at least one week before the start of the change to the facility.

• Objection
• Complaint

• The building permit expires if construction has not begun three years after it was granted or if construction work has been interrupted for more than three years.
• If the issued building permit continues to comply with the applicable legal situation, an extension of the validity of the building permit can be applied for for up to three years at a time.
• The written (informal) application for an extension of the building permit must be submitted within the period of validity of the building permit.
• The extension of the building permit can be applied for repeatedly.

Lower building supervisory authority