Switzerland has one of the most resilient real estate markets in Europe — and one of the most regulated. The framework that determines what non-residents can and cannot buy is called the Lex Koller, or more formally, the Federal Act on the Acquisition of Real Estate by Persons Abroad. It sounds restrictive. In practice, for investors who know how it works, it leaves more room than expected.
What the Lex Koller actually does
The law dates to 1983. Its purpose was — and remains — to protect Swiss soil from speculative foreign ownership of residential property. It does this by making certain residential acquisitions by non-residents subject to cantonal authorisation. Authorisation is granted only in narrowly defined cases. For most residential investments by non-residents, it is not granted at all.
What the law does not restrict is just as important: commercial property, operating businesses with real estate attached, and — within specific limits — owner-occupied housing for residents.
Commercial real estate: the open route
Office buildings, hotels, industrial premises, retail, logistics, healthcare facilities — none of these require Lex Koller authorisation, regardless of the buyer's nationality or residence. A non-resident investor can acquire a commercial property in Zurich, Geneva or Lugano on the same legal footing as a Swiss buyer.
This is where most serious foreign capital in Swiss real estate sits. The yields are tighter than in southern Europe, but the tenant covenants are strong, the legal framework is predictable, and the currency is the Swiss franc.
Residential investment property — the status board
The picture for residential and mixed-use property is more nuanced. Three categories matter:
Pure residential rental buildings — generally closed
Multi-family residential buildings held purely for rental income are subject to authorisation, and authorisation is rarely granted to non-residents. This is the central case the Lex Koller was designed to address.
Mixed-use buildings — case by case
If the commercial portion exceeds roughly 50% of the rental income, the property may fall on the commercial side of the line and become acquirable without authorisation. The cantons take different views — what works in one canton may not in another.
Commercial buildings — fully open
Pure commercial property is freely acquirable. Hotels with operating business attached are typically treated as commercial as well, depending on structure.
"The Lex Koller is not a wall. It is a filter. Investors who understand how it works find that Switzerland is more open to foreign capital than its reputation suggests."
— UniExe – SuisseThe Swiss company route — when it works, when it doesn't
A frequent question: can I set up a Swiss company and buy residential property through it? The answer is not a clean yes or no. The law looks at the substance, not just the form. If a Swiss company is controlled by non-residents and acquires residential real estate, the Lex Koller still applies — the holding structure does not bypass it.
Where a Swiss company genuinely helps: structuring commercial real estate investments, ring-fencing assets, planning succession and managing tax efficiently across multiple holdings. For these purposes, a properly substantiated Swiss holding company is one of the most effective tools available.
Cantonal differences are real
The federal law sets the framework. The cantons apply it. The practical consequences differ:
- Zurich, Geneva, Vaud: Strict interpretation. Mixed-use cases tend to land on the residential side.
- Zug, Schwyz, Lucerne: Pragmatic interpretation. More room for commercial reclassification where the substance supports it.
- Tourist cantons (Valais, Grisons, Ticino): Have separate quotas for second homes in defined zones. These are tightly managed and almost always already allocated.
Local advice matters. The legal text is the same in every canton; the answer you get is not.
The structural mistakes to avoid
- Underestimating the law's reach. Workarounds that look clever — nominee structures, layered holdings, retroactive reclassification — are exactly what the law is designed to catch. Acquisitions that violate the Lex Koller are voidable. The buyer loses the property and the money.
- Choosing the wrong canton for the deal. A mixed-use building that works in Zug may not get registered in Zurich. This is a question to settle before signing, not after.
- Treating the bank financing as a separate question. Swiss banks apply their own due diligence on top of the Lex Koller. A deal that is legally clean can still fail at the lending stage if the structure isn't built with both lenses in mind.
Considering Swiss real estate as a non-resident?
UniExe structures real estate acquisitions for international investors — commercial, residential and mixed. Lex Koller assessment, holding structure, bank financing, due diligence. First 45 minutes without fee.
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