Applying for planning permission for the modification of an installation using the simplified procedure

    If you want to make changes to an installation that requires planning permission but does not require approval and is not exempt from approval, you can submit a building application using the simplified procedure.

    Description

    As a rule, the modification of installations requiring approval is also subject to planning permission, i.e. you must have a corresponding building permit before carrying out the structural modification.

    Exception:

    • Changes that do not require a permit within the meaning of Annex II to Section 63 of the Hessian Building Regulations (HBO)
    • Changes for which the approval exemption procedure can be used

    If a building permit procedure is to be carried out, the building permit for a change is usually granted in the simplified building permit procedure

    The building permit expires if you do not start building work within 3 years of the permit being granted or if building work has been interrupted for one year after this period.

    The period can be extended by up to 2 years in each case, even several times, with a written application.

    Online services

    Alternatively, please enter a location or postcode in the City / Location input field to see the responsible online service in this section

    Contact point

    Please contact the lower building supervisory authority (building supervisory authorities of the districts, independent cities and special status cities).

    Contact person

    Please enter a location or postcode in the City / Location input field to see the responsible contact person

    Prerequisites

    In addition to the building application, the documents required for the assessment of the project and the processing of the building application must be submitted to the lower building supervisory authority in analog/digital form.

    These documents can be, for example

    • Site plan
    • Extract from the official real estate map
    • Building description
    • construction drawings

    The documents to be submitted can be found in the Hessian Building Documents Decree.

    The structural engineering certificates must be submitted to the building inspectorate prior to the execution of the respective construction phases, the building documents not subject to mandatory inspection prior to the start of construction.

    Procedure

    • You fill out the application digitally in the building portal or in analog form and submit it together with the required documents to the responsible building authority.
    • The building authority will check your application and the documents.
    • If all requirements are met, the building authority will grant you the permit.

    Area of validity

    Hesse

    Official approval

    Officially approved by Hessian Ministry of Economics, Energy, Transport and Housing on 23.02.2026

    Version

    Technisch erstellt on 03.11.2023
    Technisch geändert on 06.03.2026

    Keywords

    Extension, Conversion, Simplified building permit procedure, Structural change, Cultivation, Building application

    Language version

    Deutsch

    Sprache: de
    Technisch erstellt on 07.06.2017
    Technisch geändert on 14.05.2025

    Englisch

    Sprache: en
    Sprachbezeichnung nativ: English
    Technisch erstellt on 22.10.2025
    Technisch geändert on 26.11.2019