Back
Commercial

Does living in commercial premises in Switzerland lead to a penalty?

Find out what the consequences are of living in commercial premises in Switzerland and what the legal requirements are.

Written by
Marc Schwery
Published on
January 13, 2025

For some time now, living in commercial premises has held a certain fascination for many people. The charm of a repurposed studio, an old workshop or a modern office that suddenly becomes a cosy home is undeniable. At the same time, however, in Switzerland, delicate questions arise regarding the legal background, the need for permits and possible consequences. Can commercial space simply be converted into living space, and what happens if this conversion is done without permission? What role does the so-called silent business play in this? And what about a penalty for living in commercial premises? This article provides a comprehensive overview of the topic and highlights opportunities as well as stumbling blocks.

 

 

What does ‘living in commercial premises’ mean?

Many Swiss cities are experiencing a housing shortage. At the same time, a number of commercial properties are standing empty. From an economic point of view, it makes sense to add these properties to the housing market. But is it that simple? The first thing to consider is the purpose for which the space has been officially approved. Often, premises are defined as commercial, industrial or office space. Anyone who wants to set up their home there must apply for a change of use. If this is successful, then abandoned commercial premises can suddenly become attractive again.

 

However, anyone living in commercial premises without permission may face trouble. The question of whether living in commercial premises in Switzerland will result in a penalty refers to possible sanctions for violating building and planning laws. As soon as a municipality or canton has intervened, there is a risk of fines and even a ban on use. It is therefore important not to ignore the formal steps involved in a change of use.

 

 

Legal framework in Switzerland

In Switzerland, the issue of living in commercial premises is regulated at cantonal and municipal level. Each building law recognises certain zones and usage regulations. Whether a change of use from commercial to residential is even conceivable depends heavily on the requirements of the respective municipality. Within a residential area, offices are sometimes permissible as silent businesses. Conversely, a residential property in a mixed-use area can easily be converted into an office. The zone regulations in the building and zone regulations are crucial.

In addition to the zone plans, the building regulations play an important role. These regulations determine what type of use is permitted in which zone. A workshop in an industrial zone is subject to different regulations than an office in a mixed-use area. Anyone seeking to convert commercial premises into residential accommodation usually applies to the relevant authority for a building permit or change of use. You may only officially live there once this has been approved. Otherwise, the municipality can impose a fine.

 

 

When are fines imposed?

The term ‘living in commercial premises fine switzerland’ appears again and again in internet forums and on real estate portals. The question often arises as to under what circumstances a fine is imposed. In principle, it can already become a problem if you change the purpose of use without authorisation and without informing the authorities. Building laws provide for sanctions for such violations. Anyone who is noticed during an inspection may not only have to pay a fine, but may also have to restore the commercial property to its original condition.
 

The amount of the fine depends on the respective building law and the severity of the violation. Often, it is a three-digit amount, but it can also be a four-digit sum. Some of those affected may also have to take legal action against a ban on use or even an eviction from their self-created ‘living space’. This can result in lengthy proceedings. This makes it all the more important to clarify in advance whether a conversion of commercial premises into residential space is legally feasible.

 

 

Quiet business as a key factor

The term quiet business plays a special role in this context. It usually refers to activities that are commercial but cause little or no noise or odour. Examples include office work, artistic work or online services that do not involve public access. In many municipalities, quiet businesses are also permitted in residential zones. They do not disturb the neighbourhood and hardly lead to increased traffic.

 

But what does this mean for living in commercial premises? Those who live in an office complex may be able to argue that their activity as a quiet business is not noticeable. However, this does not replace the need for an official application for a change of use. Nevertheless, the criterion of a ‘silent trade’ in a mixed zone can signal to the authorities that noise pollution and the impact on the surrounding area will remain low. This can improve the chances of obtaining a permit for a change of use, especially if the municipality is generally flexible in its response to changing real estate needs.
 

 

Conversion from commercial to residential: opportunities and risks

In the course of urbanisation, the demand for flexible living space has increased. More and more often, attempts are being made to transform shop areas, industrial wastelands or old factory buildings into residential areas. The attraction lies in the special charm of such properties and in the often generous spaces that can be transformed into individual living solutions with a successful conversion.
 

However, there are pitfalls lurking. Because every conversion, whether it is a conversion from commercial to residential or vice versa, must meet the requirements of building law. These include minimum requirements for lighting, fire protection, sound insulation and sanitary facilities. A former storage room may seem exciting, but if it has no windows or is too high up for the noise level to be a problem, the authorities often refuse to allow it to be used for residential purposes.
 

Complying with building regulations also incurs costs. Anyone who takes over a commercial property and converts it into residential space without planning may later encounter high costs for retrofitting and adaptation. Fire doors, escape routes, soundproof windows or a new plumbing installation are just a few examples. If you have rented the commercial property, you must also clarify whether the landlord agrees to the change of use. A new rental agreement or at least a supplementary agreement is often unavoidable.

 

 

The process of a change of use

In order for a change of use of commercial premises to residential or vice versa to be legally effective, it is advisable to follow these steps:
 

First, you should clarify the building regulations. What types of use are permitted in the affected zone? Is residential use allowed in this zone or at least eligible for approval in exceptional cases? Then a preliminary enquiry should be made to the relevant building authority, usually the building or construction office in the municipality. At this stage, it can already be clarified whether the project has a chance in principle.
 

A specific building application is then submitted. It is important to submit the plans, floor plans and a building description. These must show how the premises will be adapted for residential use. Fire protection certificates, sound insulation protocols and other documents are also required. The authorities will review the documents. If they approve the application, the conversion can begin. If the application is rejected, there is usually an opportunity to improve the application or to try again.

 

Another important aspect is the development. Living spaces usually require a certain infrastructure, such as a separate entrance, kitchen and sanitary facilities, as well as adequate ventilation. If these factors are neglected, the application is likely to be rejected.

 

 

Complicated conditions in everyday life

When converting commercial premises into residential accommodation, practical issues arise in addition to the formal hurdles. Commercial premises are not always located in quiet residential areas, but often in commercial or industrial zones. This means more noise, fewer shopping facilities and sometimes irregular bus or train connections. Those who live there have to be prepared for restrictions. On the other hand, a creative living solution in an old office building can be very appealing.
 

Another point is the neighbourhood. In commercial districts, the usual quiet hours are often less strictly controlled, but at the same time, night-time work and delivery traffic are common. This means that you may have peace and quiet during the day for your home office, but a noisy truck may roll up in the evening. Whether living in such properties proves successful in the long term depends heavily on personal preferences.


 

Conversion of office space into a flat

Let's assume you have found a former practice or studio and would like to turn it into a loft. The conversion of an office into a flat is a classic example. Depending on the location and building regulations, this is feasible if the building is located in a zone that allows residential use or if an exceptional permit is possible. Important issues include soundproofing, sufficient window space and fire compartments.

 

This is precisely where potential conflicts arise if the building does not meet any residential requirements. In this case, it can be costly to meet the requirements of the authorities. It should also be noted that the tax and insurance environment can change if you no longer run a business but operate a residential property.

 

 

Opportunities for owners and investors

Owners of vacant commercial space often expect higher returns from residential use. Converting a commercial property into residential space opens it up to a new target group: singles, couples or creatives looking for a unique living space. This can be a lucrative option, especially in cities with a tight housing market. However, investors have to expect higher conversion costs. This means that the calculation should be long-term. In addition, official requirements are stricter when converting a commercial building into a residential building. However, in the event of a resale, a permit for residential use can prove to be an attractive location advantage.

 

 

Beware of illegal residential use

Anyone who thinks they can simply move into an office and avoid being checked by the authorities should not underestimate the risk. Living in commercial premises in Switzerland can certainly lead to penalties and makes it clear that the authorities will not remain inactive if they are notified of a property being used illegally. Often, information comes to light from neighbours or routine checks.

 

The consequences are unpleasant: a fine, an immediate eviction and the requirement to restore the property to its original condition are typical consequences. Anyone who has invested money in the conversion may be left with the costs. On top of that, there may be disputes with the landlord because the commercial lease does not cover residential use. Legally compliant conversion is therefore worthwhile in two respects: you avoid penalties and benefit from planning security.

 

 

Is ‘living and working’ an alternative?

In some cases, it is permitted to use commercial premises as a place of both work and residence. This applies in particular to quiet commercial enterprises. Freelancers or artists who run a studio and sleep there may be able to apply for a mixed-use permit. However, it is important to pay close attention to the regulations of the building authorities. Not every municipality allows this and clear proof is often needed that the apartment only takes up a certain part of the total area.
 

Sometimes, municipalities have mixed zones in which residential and commercial use are explicitly allowed. In such areas, building regulations are somewhat more flexible. However, a careful examination of the legal situation is also mandatory here. Even with mixed use, there may be conditions, such as separate accesses for the residential area, noise protection measures and a maximisation of the window areas for the residential part.

 

 

Outlook: flexibility vs. regulations

The discussion about converting commercial space into living space is growing in Switzerland. The need for new living space coincides with the vacancy of office space, warehouses and shops. Many cities want to make more attractive use of their sites and are promoting innovative ideas, while at the same time maintaining the legal framework. For those looking to build, this means that, depending on the location, you may encounter either favourable authorities or strict regulations. It is always worth talking to those responsible for construction.

 

Furthermore, the question arises as to how society is changing. Home offices are becoming more important in many sectors. Do we still need so many traditional offices or could they be reduced in favour of living space? Municipalities will have to adapt to avoid vacancies while maintaining quality of life. Anyone planning today should keep an eye on the trend towards flexible living and working models.

 

 

Conclusion

Residential conversion in Switzerland is a complex issue that touches not only on building regulations but also on financial and social aspects. In principle, it is possible to convert commercial space into living space if the formal requirements are met. However, a legal change of use requires thorough preparation: you have to clarify the zoning regulations, submit a building application and ensure that all building regulations are complied with.

 

Anyone who underestimates the issue and moves into a workshop or office without a permit risks legal consequences. Fines, a forced restoration obligation or an immediate eviction are realistic scenarios. The argument that you are only running a quiet business is not sufficient for residential use. Nevertheless, this type of business can increase the chances of obtaining a permit for a change of use if the spatial requirements are met and the building meets the relevant standards.

 

The ambivalence between building law, practical implementation and personal lifestyle is reflected in this issue. Many people dream of urban living in old factory floors or creative studios, but the reality can be complicated. At the same time, Switzerland is looking for solutions to avoid vacancies and use urban spaces more efficiently. It therefore makes sense for all parties involved to openly discuss the possibilities of converting commercial spaces and to work together to find viable concepts. In this way, new living space is created step by step that meets the needs of the population without undermining existing building regulations. And this is the only way to avoid possible legal pitfalls before you end up in the unfortunate situation of having to pay a fine as a tenant or owner for living in non-approved commercial premises.