Construction project; notification of the start of construction
You must notify the start of construction in advance. This applies to the start of execution of projects requiring approval and the resumption of construction work after an interruption of more than 6 months.
Description
The notification of the start of construction is not an application. You only need to inform the lower building supervisory authority of the imminent start of construction.
The notification of the start of construction is intended to give the lower building supervisory authority sufficient time to prepare construction monitoring measures and to check whether the period of validity of the building permit has expired.
Consequences of non-notification
If you deliberately or negligently fail to notify the start of construction at least one week before the start of construction, you are committing an administrative offense. You can be fined up to EUR 500,000 for this. In addition, the lower building supervisory authority can order the suspension of construction.
Information for Bad Tölz-Wolfratshausen: Supplement: Landratsamt Bad Tölz-Wolfratshausen
Please give priority to using the online service above via the "Show start of construction online" button.
You will also find a link to our topic page for the "Building application procedure" under the further links.
The "FAQ on the digital building application procedure" with numerous questions + answers can be found in the Forms section.
Online service
Baubeginn online anzeigen
Description
You can report the start of construction or excavation online.
Use this service online
- Baubeginn online anzeigen
You can report the start of construction or excavation online.
Trust level
The level of trust for this online service is not defined (Trust Level undefined).
further information on the level of trust for online services
Contact person
Landratsamt Bad Tölz-Wolfratshausen - Sachgebiet 22 - Kreisbauamt Verwaltung
Address
address
postal address
Prof.-Max-Lange-Platz 1
83646 Bad Tölz
Opening hours
Mo 7:30 Uhr - 12:00 Uhr und 13:30 Uhr - 18:00 Uhr
Di 7:30 Uhr - 12:00 Uhr
Mi 7:30 Uhr - 12:00 Uhr
Do 7:30 Uhr - 12:00 Uhr
Fr 7:30 Uhr - 12:00 Uhr
Bitte vereinbaren Sie für die persönliche Vorsprache telefonisch oder per E-Mail einen Termin.
Für Anliegen in der Kfz-Zulassung / Führerscheinstelle steht ihnen unsere
Online Terminvereinbarung zur Verfügung.Contact
E-Mail: kreisbauamt@lra-toelz.de
Sonstiges: https://www.bayernportal.de/dokumente/behoerde/1944548681494Weiterführende Informationen im BayernPortal
Telefon Festnetz: +49 8041 505-555
Fax: +49 8041 505-394
Landratsamt Bad Tölz-Wolfratshausen - Sachgebiet 24 - Kreisbauamt Technik
Address
address
postal address
Prof.-Max-Lange-Platz 1
83646 Bad Tölz
Opening hours
Mo 7:30 Uhr - 12:00 Uhr und 13:30 Uhr - 18:00 Uhr
Di 7:30 Uhr - 12:00 Uhr
Mi 7:30 Uhr - 12:00 Uhr
Do 7:30 Uhr - 12:00 Uhr
Fr 7:30 Uhr - 12:00 Uhr
Bitte vereinbaren Sie für die persönliche Vorsprache telefonisch oder per E-Mail einen Termin.
Für Anliegen in der Kfz-Zulassung / Führerscheinstelle steht ihnen unsere
Online Terminvereinbarung zur Verfügung.Contact
E-Mail: kreisbauamt@lra-toelz.de
Sonstiges: https://www.bayernportal.de/dokumente/behoerde/1978104235494Weiterführende Informationen im BayernPortal
Telefon Festnetz: +49 8041 505-555
Fax: +49 8041 505-394
Required documents
- If applicable, certificate of stability I (for form see "Forms")
The necessity depends on the project.
- Fire protection certificate I, if applicable (for form see "Forms")
The necessity depends on the project.
- if applicable, declaration of compliance with the catalogue of criteria (for form, see "Forms")
The necessity depends on the project.
If the building application is submitted digitally, the structural engineer can also submit the declaration digitally using the online wizard (see service "Building project; online submission of the declaration of compliance with the catalogue of criteria" under "Related topics").
- If applicable, designation of the person responsible for the construction work (for form, see "Forms")
The necessity depends on the project.
If the building application is submitted digitally, the structural engineer can also submit the declaration digitally using the online wizard (see service "Building project; online submission of the declaration of compliance with the catalogue of criteria" under "Related topics").
Prerequisites
You must notify the start of construction if:
- you start carrying out a construction project that requires approval,
- you resume construction work after an interruption of more than 6 months or
- you remove an installation subject to notification.
This also applies to a project covered by a partial building permit and to projects that do not require a permit.
Basis for legal action
Legal remedy
As no decision is issued by the lower building supervisory authority, you cannot lodge an appeal.
Procedure
Written submission
- Submit the completed and signed "Construction start notification" form with the required attachments to the lower building supervisory authority (district offices, independent cities, large district towns and certain larger municipalities).
- Verbal notification is not sufficient.
- You will not receive confirmation of receipt.
- The lower building supervisory authority will then check whether the period of validity of the building permit has not yet expired. It can also prepare construction supervision measures if necessary.
Digital submission
It is not yet possible to submit notifications of the start of construction work digitally throughout Bavaria. When a location is selected, the link to the online procedure is displayed if it is already offered.
- The start of construction can be notified digitally to the lower building supervisory authority using the online assistant.
- The predefined forms "Notification of start of construction" and (if required) "Designation of the structural engineer responsible for the construction work" are replaced by the queries in the online assistant.
- Signatures are replaced by authentication using the "BayernID" user account or "My company account".
- The remaining attachments are uploaded in electronic form (files in PDF format) in the online assistant.
Deadlines
You must notify the start of construction at least one week before work begins.
Costs
Notes (specifics)
Further Information
Information for Bad Tölz-Wolfratshausen: Supplement: Landratsamt Bad Tölz-Wolfratshausen
- Bauantragsverfahren
Informationen zum Antragsverfahren, Unterlagen etc.
Area of validity
Bavaria
Official approval
Officially approved by Bayerisches Staatsministerium für Wohnen, Bau und Verkehr (Bavarian State Ministry of Housing, Building and Transport) on 14.08.2025
Information for Bad Tölz-Wolfratshausen: Supplement: Landratsamt Bad Tölz-Wolfratshausen
Officially approved by Landratsamt Bad Tölz-Wolfratshausen on 25.11.2025
Keywords
Baubeginn, Baubeginnsanzeige, Baustart