Lex Koller Law in Switzerland: Property Rules for Non-Residents

Switzerland is recognised for its economic resilience, political continuity, and clear legislative architecture. Its real estate market is shaped by the same principles — defined by precision, regulatory consistency, and long-term value orientation. For international investors, the appeal lies not only in market stability, but also in the discipline and clarity that underpins it. 

Within this framework, property acquisition is governed by the Lex Koller Law, which determines how non-residents may access real estate in the country. Understanding this structure is essential; in Switzerland, market entry is not solely a matter of capital, but of alignment with regulatory design and long-term national priorities. 

The Essence of the Lex Koller Law 

Introduced in the 1980s and still actively enforced, the Lex Koller Law (originally “Federal Act on the Acquisition of Real Estate by Persons Abroad”) serves to limit property purchases by foreign individuals and entities in Switzerland. 

Its intent is not protectionist, but preservationist — ensuring that domestic property markets remain accessible to residents and not dominated by speculative foreign ownership. 

In essence, the law restricts non-residents from freely acquiring residential real estate unless specific exemptions apply. The framework distinguishes between: 

• Swiss residents, including those with long-term residence permits, who may buy without restrictions. 
• Foreign non-residents, who face clear limitations and must obtain cantonal and federal approval before acquisition. 

Eligibility and Restrictions 

Switzerland categorises buyers primarily based on residency status. Foreign nationals residing permanently in the country — typically with a B or C permit — can generally purchase property for personal use. However, those without residency, or with only temporary status, must comply strictly with the Lex Koller provisions. 

For non-residents, only specific types of properties are eligible: 

• Holiday homes in designated tourist zones. 
• Certain plots are approved for investment or commercial activity. 
• Limited-use residential properties that cannot be rented long-term. 

Each canton maintains discretion over approval processes, often imposing annual quotas for non-resident purchases. 

These approvals are not automatic. Applications are reviewed to confirm the property’s type, location, and intended use — ensuring alignment with national objectives. Investors are therefore advised to structure acquisitions with foresight, balancing residency status, property purpose, and long-term ownership goals. 

Strategic Implications for Investors 

For foreign investors, the Lex Koller Law introduces both constraints and opportunities. While the direct purchase of residential property is limited, strategic structuring can open viable pathways for participation in Switzerland’s real estate market. 

Multi-jurisdictional structure has become common among UHNWIs and institutions. This often includes: 

• Holding property through Swiss-registered companies with resident ownership representation. 
• Offshore corporate entities aligned with local legal frameworks. 
• Cross-border financing structures that respect ownership limitations while maintaining capital efficiency. 

These approaches require precision, as Swiss authorities scrutinise intent and control in ownership arrangements. Transparency and compliance remain fundamental — yet within those boundaries, flexibility exists. 

In practice, the Lex Koller Law does not close the door to foreign ownership; it simply defines how it must be approached. As with most aspects of Swiss regulation, success depends on alignment — not circumvention. 

Residence Status and Regulatory Alignment 

Residency status plays a central role in Swiss property eligibility. Holders of a B residence permit are generally treated as residents for acquisition purposes, provided the property serves as their primary residence. While this pathway supports long-term settlement, it remains subject to cantonal approval and use-based restrictions. 

For non-residents, access is narrower and governed by the Lex Koller framework, which limits purchases primarily to designated holiday properties and specific investment scenarios. In all cases, Swiss authorities review ownership intent, structure, and location to ensure compliance with federal and cantonal rules. 

In practice, success in the Swiss market is determined not only by eligibility, but by the precision with which compliance, structure, and residency considerations are aligned. 

How We Work 

Strategic preparation remains key. Sophisticated investors typically coordinate legal, financial, and structuring advice well before committing to a transaction. 

At Hectocorn, our role is often at the intersection of these considerations — ensuring that investment structures, lender expectations, and regulatory frameworks align before capital is deployed. This approach reflects a broader principle: in Switzerland’s property market, clarity precedes execution. Investors who approach the Lex Koller framework with structure and foresight position themselves for long-term stability and opportunity. 

Before entering Switzerland’s real estate market, investors benefit from clarity — both legal and strategic. 
Understanding the Lex Koller Law is essential not just to comply with regulation, but to structure acquisitions that align with Switzerland’s long-term stability and global reputation for integrity.