Building law in Austria’s nine states
In Austria, building law is state law. Piloti works with the building code and building-technology rules of the state your project is in.
Building law in Vienna: Bauordnung für Wien, WBTV 2023 and OIB guidelines
Piloti answers questions on a Vienna project from the Bauordnung für Wien and the Wiener Bautechnikverordnung 2023, which makes the OIB guidelines binding, each with a checked citation. According to the OIB overview, Vienna has applied OIB guidelines 1 to 6 in the 2023 edition since 23 February 2024 (as of September 2025) and OIB guideline 6, edition 2025, since 15 July 2026 (as of July 2026).
Building law in Lower Austria: NÖ Bauordnung 2014 and OIB guidelines
Piloti answers questions on a project in Lower Austria from the NÖ Bauordnung 2014 and the OIB guidelines, with a checked citation, and reads the municipal development plan as soon as it is in the project. According to the OIB overview (as of September 2025), OIB guidelines 1 to 6 in the 2023 edition have been binding there since 18 March 2025; OIB guideline 6, edition 2025, is not in force according to the overview (as of July 2026).
Building law in Upper Austria: Oö. Bauordnung 1994 and OIB guidelines
Piloti answers questions on a project in Upper Austria from the Oö. Bauordnung 1994 and the OIB guidelines and names, guideline by guideline, the edition that applies there. According to the OIB overview (as of September 2025), OIB guidelines 1 to 5 in the 2023 edition have been binding since 1 October 2025; for OIB guideline 6 the overview does not list the 2023 edition as in force, so the 2019 edition generally still applies.
Building law in Styria: Steiermärkisches Baugesetz and OIB guidelines
Piloti answers questions on a Styrian project from the Steiermärkisches Baugesetz and the OIB guidelines, with a checked citation and the edition that applies in the state. According to the OIB overview, Styria has not declared the 2023 OIB guidelines binding (as of September 2025), nor is RL 6, edition 2025, in force there (as of July 2026); the 2019 edition generally still applies.
Building law in Carinthia: Kärntner Bauordnung 1996 and OIB guidelines
Piloti answers questions on a Carinthian project from the Kärntner Bauordnung 1996 (K-BO 1996) and the OIB guidelines, with a checked citation. According to the OIB overview (as of September 2025), OIB guidelines 1 to 6 in the 2023 edition have been binding there since 31 December 2024; OIB guideline 6, edition 2025, is not in force in Carinthia according to the overview (as of July 2026).
Building law in Salzburg: Bautechnikgesetz 2015, Baupolizeigesetz 1997 and OIB guidelines
Piloti answers questions on a Salzburg project from the Salzburger Bautechnikgesetz 2015 (technical requirements) and the Baupolizeigesetz 1997 (permits and notification) and cites the act responsible for each question. According to the OIB overview (as of September 2025), Salzburg has not declared the 2023 OIB guidelines binding; OIB guidelines 1 to 5 in the 2019 edition are in force, and for RL 6 the overview lists no edition.
Building law in Tyrol: Tiroler Bauordnung 2022 and OIB guidelines
Piloti answers questions on a Tyrolean project from the Tiroler Bauordnung 2022 and the OIB guidelines and names the edition that applies for each requirement. According to the OIB overview, OIB guidelines 1 to 5 in the 2023 edition and OIB guideline 6 in the 2025 edition have been binding there since 16 July 2026; RL 6 in the 2023 edition was not in force in Tyrol according to the overview.
Building law in Vorarlberg: Baugesetz and OIB guidelines
Piloti answers questions on a Vorarlberg project from the Baugesetz (Vbg. BauG) and the OIB guidelines, with a checked citation and the edition that applies in the state. According to the OIB overview, Vorarlberg has not declared the 2023 OIB guidelines binding (as of September 2025), and RL 6, edition 2025, is not in force there either (as of July 2026); the 2019 edition generally still applies.
Building law in Burgenland: Burgenländisches Baugesetz 1997 and OIB guidelines
Piloti answers questions on a Burgenland project from the Burgenländisches Baugesetz 1997 and the OIB guidelines, with a checked citation and the edition that applies in the state. According to the OIB overview, Burgenland has not declared the 2023 OIB guidelines binding (as of September 2025), and RL 6, edition 2025, is not in force there either (as of July 2026); the 2019 edition generally still applies.
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