Commercial to residential: Using rezoning correctly - what you need to know!
There are numerous empty offices, warehouses and business premises throughout Austria. At the same time, the housing shortage is worsening in many cities. More and more owners are therefore asking themselves: Can my commercial property be converted into residential space? The answer: Yes - but only under certain conditions. We will show you what opportunities a conversion from commercial to residential offers, what risks you need to be aware of and how you can successfully manage the process.
Why repurpose at all? - Recognize potential
Commercial space is losing demand in many regions. At the same time, pressure on the housing market is increasing - especially in urban centers such as Vienna, Salzburg and Graz. Converting vacant commercial properties to residential use can pay off:
- Higher returnApartments can often be let more profitably than unused commercial space.
- Increase in valueChange of use can significantly increase the value of the property.
- Contribution to urban developmentConversions counteract the housing shortage and enhance neighborhoods.
Tip: Example project „On Air“ in Vienna-Donaustadt
Legal framework - this must be observed
A successful reclassification depends on several legal factors:
Zoning and building regulations
- Conversion is only possible in principle in mixed or residential areas.
- Residential areas are generally not permitted in purely commercial zones.
- The respective building authority (city or municipality) is responsible.
Construction measures requiring approval
- Minor changes (e.g. bathroom installation) can often be made by means of a building notification.
- Major alterations (e.g. new windows, changes to the floor plan) require planning permission.
- All plans must be drawn up by an authorized person.
Residential property and rights of use
- In WEG properties, the consent of all co-owners is usually required.
- The condominium agreement regulates whether a change of use is permitted
Risks associated with reclassification - what you should be aware of
As attractive as the rededication may seem, there are also stumbling blocks:
- Cost trapsStatics, sound insulation or fire protection must be adapted.
- Rejection by authoritiesIf the dedication is not changed, use as living space is not permitted.
- Subsequent tenant problemsWithout a valid dedication, there is a risk of legal disputes.
Checklist: Risk assessment before reclassification
| Point | Checked? |
| Dedication according to the zoning plan | ☑ Yes / ☐ No |
| Consent of the co-owners (for WEG) | ☑ Yes / ☐ No |
| Approval by building authorities | ☑ Yes / ☐ No |
| Compliance with building regulations (e.g. lighting) | ☑ Yes / ☐ No |
| Check sound insulation and fire protection | ☑ Yes / ☐ No |
How to reclassify step by step
1. analysis of the initial situation Have the dedication, building regulations and legal framework checked.
2. obtain specialist advice Involve the architect, building law expert and real estate specialists at an early stage.
3. submit building notification or building permit The authority decides whether a notification is sufficient or whether an approval procedure is necessary.
4. implementation of the conversions Only start after legally binding approval - with professional support.
5. registration as residence and rental After conversion, use as an apartment is officially permitted and renting out is possible.
When is a reclassification economically worthwhile?
A profitability analysis is crucial:
- How high are the conversion costs including ancillary costs?
- What rental or sales proceeds are realistic?
- How does the market value of the property change?
Tip: Use our Subadministration for the stress-free letting of repurposed apartments!
Key takeaways - What you should take with you:
- Rededications are an opportunity for vacancies and housing shortages.
- The legal review is essential, especially for condominiums.
- Residential use is not permitted without a permit!
- Good planning ensures long-term success.
- Economically, the reallocation can pay off in several ways.
Conclusion: Good planning pays off!
Converting commercial space into residential space can be a profitable and sustainable solution - as long as all legal, technical and economic issues are clarified in advance. With professional support, for example from our Marketing experts, you ensure maximum chances of success.
When can I use a commercial property for residential purposes?
Only if the zoning permits residential use - i.e. in residential or mixed-use areas. In purely commercial zones, housing is usually excluded.
Do I need planning permission for the rezoning?
This depends on the extent of the alterations. Minor changes such as a bathroom installation usually only require a building notification. Larger alterations (e.g. changes to the facade) require planning permission.
As a condominium owner, can I reallocate independently?
No, in a condominium community (WEG), the consent of the other co-owners is almost always required - especially if the use changes.
What construction requirements apply to the rezoning?
The converted unit must comply with the building law requirements for living space: Lighting, ventilation, sound insulation, fire protection, etc. must be met.
How long does a reclassification take?
Depending on the municipality, the complexity of the project and the approval period: between a few weeks (for a simple building notification) and several months (for a change of use).
Can I rent out the converted property immediately?
Use as living space is only permitted after legally valid approval and successful building acceptance - and therefore also rental.
How does the reclassification affect the property valuation?
In many cases, conversion significantly increases the market value - especially in cities with high demand for housing.
Are there subsidies for the conversion of commercial space into residential space?
In some cases yes - for example as part of urban development programs. The exact conditions vary depending on the federal state and municipality.
