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Building law in Lower Austria: NÖ Bauordnung 2014 and OIB guidelines

In Lower Austria two levels decide a project: the NÖ Bauordnung 2014 for the whole state and the municipality’s development plan for the individual plot. Piloti works with the first from RIS, and with the second as soon as it is in the project.

OIB status per the OIB overview “Inkrafttreten der OIB-Richtlinien”: 2023 edition as of September 2025, RL 6 edition 2025 as of July 2026. Legal text from RIS.

In short

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).

Try it with a real questionChecked: September 2026

What applies in Lower Austria

For Lower Austria Piloti draws on the state act, alongside the OIB guidelines and federal law where a project touches it, each with its citation.

NÖ Bauordnung 2014
Applications, permits and the rules the municipal development plan builds on. The basis of every answer on a project in Lower Austria.
OIB guidelines 1–6
2023 edition, binding since 18 March 2025 according to the OIB overview, all six on the same day.
OIB guideline 6, edition 2025
Not in force in Lower Austria according to the OIB overview (as of July 2026). Energy saving and thermal protection stay with the 2023 edition.
Federal law
ASchG and the workplace ordinance for workplaces, the trade code for commercial facilities, the monuments act: applies alongside the building code, with its own procedure.

The development plan has a say

Many questions about a plot in Lower Austria are not answered by the building code alone. What may be built there depends on the municipality’s development plan, and each municipality issues its own.

Piloti therefore keeps them apart: what the NÖ Bauordnung 2014 governs in general, it cites with the passage. What only the development plan can fix, it reads from the plan if the plan is in the project. If it is missing, Piloti says so instead of guessing a value, and names the municipal building authority as the place that holds it.

How Piloti works on a project in Lower Austria

  1. 01

    Settle the location

    Piloti asks for the state if the project lacks it. For a Vienna office this is no formality: a plot just past the city boundary falls under the NÖ Bauordnung 2014.

  2. 02

    Name the edition

    When a value depends on the OIB edition, the answer says which one Piloti applies. For a procedure begun before 18 March 2025, it points to the state’s transition rules.

  3. 03

    Cite

    The citation reads like a permit, “NÖ Bauordnung 2014, § …”, checked against the text before it appears and opened in RIS inside Piloti at the marked passage.

  4. 04

    Compare where it counts

    If the office weighs two sites, Piloti sets Vienna and Lower Austria side by side in tabs, each with its own source.

Good to know

The municipal building authority decides on the project; responsibility for the design stays with the office. Piloti names every source with its citation, asks when the location or submission date is missing, and points to the state’s transition rules. Piloti does not calculate an energy certificate; it says which requirement applies and how a value stands against it.

Questions

Which OIB guidelines apply in Lower Austria?

According to the OIB overview (as of September 2025), Lower Austria applies OIB guidelines 1 to 6 in the 2023 edition, binding since 18 March 2025. OIB guideline 6, edition 2025, is not in force there according to the overview (as of July 2026). Check exceptions and transition rules in state law.

Where can I read the NÖ Bauordnung 2014 in full?

In the federal legal information system (RIS), free of charge and in its current version. Piloti opens every cited passage straight from RIS, marked, so you read the paragraph in context.

Can Piloti answer questions on the Lower Austria building code?

Yes, with a citation from the NÖ Bauordnung 2014 and the OIB guidelines, checked against the source text before it appears. What only your municipality’s development plan fixes, Piloti answers from the plan if it is in the project; otherwise it says the plan is missing.

On the edge of Vienna, does the Vienna or the Lower Austria code apply?

The law of the state the plot lies in applies, not that of the office. If it lies in a Lower Austrian municipality, the NÖ Bauordnung 2014 and that municipality’s development plan apply. Piloti asks for the location if the project does not state it.

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