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Change of use in Salzburg: check flat, office or holiday apartment legally

Change of use in Salzburg: when flat, office or holiday apartment should be checked under building law.

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17 July 2026 · Mag. Bernhard Brandauer, Rechtsanwalt

A change of use is often less visible than an extension, but can be just as decisive under building law. If a flat is to become an office, practice or holiday apartment, the purpose of the building may change.

Under section 2 para 1 no 5 S-BauPolG, a change in the type of use of a building or part of a building may require a permit. Zoning, condominium law, neighbours and contracts can also matter.

This article explains which questions owners in Salzburg should clarify before changing use.

Assess the use

Is your planned use relevant under building law?

Two questions give a first direction.

Already know you want to get in touch? Go straight to the enquiry form.

01 Question 1

Will the previous use be changed?

Building law looks not only at construction works but also at the purpose of use.

All paths at a glance

Overview of all answers.

01

Before changing use, the building law permit issue should be checked.

A change from flat to office, practice or holiday apartment can be relevant under section 2 para 1 no 5 S-BauPolG. Check in advance whether a procedure is required.

02

If the use is already running, a quick risk check matters.

If the use has already changed, zoning, permit, contract and consents should be organised quickly. This shows whether subsequent approval or adjustment is needed.

03

Missing documents make classification difficult.

Collect permit, plans, zoning, condominium documents and contracts. Only then can the use be assessed reliably.

Check purpose of use, not only construction works

A change of use does not require walls to be moved. The type of use itself can be relevant, for example where a flat becomes an office, practice or holiday apartment.

Section 2 para 1 no 5 S-BauPolG treats a change in the type of use of buildings or parts of buildings as a separate issue. The question is whether the new use triggers different requirements for safety, parking, access, neighbours or zoning.

Anyone who looks only at construction works misses the core. The authority is interested not only in plans but also in actual use.

Separate flat, office and holiday apartment

Changing a flat into an office may change visitor frequency, operating hours and requirements. A holiday apartment can also touch zoning and local rules.

In condominium property, internal consent can be added. Even if public building law can be solved, the owners association may matter. See our article on alterations and consent in condominium property.

For the general permit issue see building permit in Salzburg.

Organise documents before contacting authorities

Collect building permit, plans, zoning, lease, condominium agreement and house rules. These documents show which use was legally intended.

If the use is already running, secure listings, contracts, correspondence and official letters. This helps assess the actual scope and possible risks.

A clear chronology also makes communication with authority, property management and neighbours easier.

Distinction

Which level counts in a change of use

The new use can create issues on several levels.

Review levels for changes of use
Level Typical question Example
Building law Is the change subject to permit? Flat becomes office or practice
Zoning Is the use allowed at the location? Holiday apartment or business use
Civil law Is consent or contract change needed? Condominium, lease or house rules

The levels must be checked separately but may influence each other.

Process

Safe steps before the new use

This sequence prevents a use from starting too early.

  1. 01
    Step 1
    before start

    Describe use

    Compare old and new use concretely.

    Describe previous and planned use, including visitors, hours and building adjustments.

    Legal bases: sec. 2 S-BauPolG

  2. 02
    Step 2
    before contact

    Check documents

    Read permit, plan and zoning.

    Check building permit, plans, zoning and internal contracts before changing the use.

    Legal bases: S-BauPolG

  3. 03
    Step 3
    before implementation

    Clarify procedure

    Separate authority and consents.

    Authority clarification and internal consent should not be mixed, but should be coordinated in time.

    Legal bases: sec. 2 para 1 no 5 S-BauPolG

Practical tip: Describe the planned use soberly and completely. Authorities and neighbours often react to actual use, not to labels such as home office or guest room. You can book an initial consultation (72 euros).

FAQ

Change of use in Salzburg: frequent questions.

Can a change of use matter without construction works? +

Yes. Under Salzburg law, changing the type of use can itself require a permit. It is not only about physical works.

Can I simply use a flat as an office? +

This should be checked. Building law, zoning, condominium law, lease and neighbour interests may matter. A general answer without documents is risky.

Which documents do I need? +

Building permit, plans, zoning, condominium agreement or lease, house rules and a precise description of the planned use are important.

Further reading

Further construction law topics

Building permit in Salzburg

When a construction project needs a permit and which risks must be checked before starting.

Condominium alterations

When alterations in condominium property require consent.

Building notice in Salzburg

Which works may be notifiable and how documents should be prepared.

Setbacks and boundary distances

Why distances, development plans and neighbour issues matter before planning.

Topics
Change of useSalzburgBuilding permitHoliday apartmentOffice

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