How nonsensical regulations are slowing down residential construction

September 2024

The housing shortage in Swiss cities is worsening, and lengthy building permit procedures and a large number of unnecessary building regulations are contributing significantly to this. Experts from the construction and property industry are sounding the alarm and urgently calling for reforms to revive the stagnating housing construction sector.

In Swiss cities, rental flats are scarce and expensive, and there are many reasons for this. One decisive factor is the increasingly long waiting time between planning application and building permit. The number of waiting days has increased by around 12 per cent on average across Switzerland in the last ten years. Whereas a decade ago, building applications still took an average of 118 days to be approved, today the figure is already 133 days.

The cantons of Geneva, Fribourg and Basel-Stadt are particularly affected, where it takes up to 188 days to review a planning application. The waiting time in the canton of Zurich is also considerable at 152 days. These delays are a symptom of more far-reaching problems in the Swiss construction industry.

Nonsensical regulations act as a brake
Architects and experts see nonsensical building regulations as a key obstacle to the rapid construction of new rental flats in urban centres. Peter Sturzenegger, owner of the architectural firm Isler Architekten AG in Winterthur, cites the multiple length allowance (MLZ) as an example. This regulation stipulates that the boundary distance must be increased for buildings over 14 metres in length, which has made many construction projects impossible. In Winterthur, it is planned to abolish this regulation by the end of 2025, but in other cities such as Zurich, the future of this rule remains uncertain.

Outdated laws and their consequences
Another example of outdated building regulations is the orientation of living spaces in the canton of Zurich. The Planning and Building Act requires that the majority of living spaces must not face north-east or north-west in order to maximise daylight and prevent mould growth. However, Pascal Müller from Müller Sigrist Architekten AG argues that this regulation is no longer appropriate in the context of today’s urban conditions, such as noise pollution and climate change.

In addition to the legal hurdles, Müller also criticises the role of the courts. The large number of court rulings and judgements creates uncertainty for building owners, as they constantly change the regulations and significantly restrict the scope for planners.

Monument protection and energy-efficient refurbishment
Aargau architect Daniel Huber emphasises the restrictive requirements for monument protection and the complex requirements for energy-efficient refurbishment as further obstacles. For him, the inconsistent implementation of building regulations, which depends heavily on the interpretation of the responsible authorities, is particularly problematic.

The mass of regulations as a central problem
The Swiss Federation of Master Builders sees the growing number and complexity of building regulations as the biggest challenge. Jacqueline Theiler, Head of Communications at the association, explains that the increasing density of regulations and the associated appeal procedures considerably lengthen the building permit process. The over-interpretation of existing noise regulations by the Federal Supreme Court is particularly problematic.

The association is now pinning its hopes on swift changes to the law by parliament in order to get the faltering housing construction back on track and realise the urgently needed flats in Switzerland.

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