In force since January 1, 1985, the Federal Act on the Acquisition of Real Estate by Foreign Persons (LFAIE), better known as the "Lex Koller," aims to prevent foreign control over Swiss land by subjecting the acquisition of real estate in Switzerland by persons—both natural and legal—qualified as "foreign persons" to an authorisation regime.
The notion of "foreign person," defined in Art. 5 LFAIE, encompasses not only natural and legal persons domiciled or headquartered abroad, but also third-country nationals (non-EU/EFTA) residing in Switzerland with a simple residence permit (B permit), as well as legal entities headquartered in Switzerland in which foreign persons hold a dominant position.
However, the Lex Koller has undergone several successive relaxations over recent decades. For example, since 2002, EU and EFTA nationals domiciled in Switzerland have been exempt from the authorisation regime for all real estate acquisitions. Similarly, third-country nationals holding a settlement permit (C permit) are also exempt from obtaining any authorisation.
Furthermore, foreign persons may currently acquire, without any prior authorisation, real estate used for commercial, artisanal, or professional activities, including for pure capital investment purposes, and may hold shares in publicly listed real estate companies or real estate funds without restriction.
The Federal Council now considers that these relaxations have gone too far. On April 15, 2026, the Federal Department of Justice and Police (FDJP) opened the consultation procedure on a preliminary draft revision aimed at significantly tightening the conditions for the acquisition of real estate by "foreign persons."
This draft revision is part of the accompanying measures decided by the Federal Council on January 29, 2025, in connection with the popular initiative "No Switzerland of 10 million!" (also known as the "sustainability initiative").
This initiative aims to limit the demographic growth of Switzerland. The Federal Council, however, recommends rejecting it, considering that its adoption would be detrimental to the economy, prosperity, security, and the functioning of society. It acknowledges, however, that immigration and population growth pose real challenges, particularly in the housing market. That is why, rather than accepting the initiative, the Federal Council proposes a set of accompanying measures in the areas of the labor market, housing, and asylum, with the tightening of the Lex Koller being one of these measures.
The objective of this text is clear: in an extremely tight housing market, the Federal Council wishes to make real estate and real estate companies more available to the resident population and Swiss investors, thereby reducing Switzerland's attractiveness for foreign real estate investors.
The proposed measures apply to all "foreign persons" within the meaning of Art. 5 LFAIE. EU/EFTA nationals domiciled in Switzerland, as well as third-country nationals holding a C permit, will remain exempt from the authorisation regime and will therefore not be affected by these modifications if they enter into force as they stand.
However, EU/EFTA nationals not domiciled in Switzerland, third-country nationals (with the exception of C permit holders), and legal entities domiciled abroad or controlled by foreign persons are affected by all or some of the following measures.
The text is currently at the preliminary draft stage, open for consultation. Interested parties (cantons, political parties, professional associations, and other stakeholders) have until July 15, 2026 to submit their observations to the Federal Council.
At the end of the consultation, the Federal Council will analyse the results and prepare a dispatch accompanied by a draft law to be submitted to the Federal Assembly (National Council and Council of States). Since the amendments must be enacted in the form of a federal law (in accordance with Art. 164(1) of the Constitution), they must be approved by both chambers of Parliament. Once adopted, the amendment will, where applicable, be subject to an optional referendum procedure.
Finally, the Federal Council will set the date of entry into force of the amendments and coordinate the adaptation of the implementing ordinance (OAIE). The cantons may then adapt their own legislation accordingly.
Although the path ahead before any possible entry into force of the text is still long, it is essential for the various actors in the Swiss real estate market to follow the evolution of this dossier with interest and anticipate the potential consequences of this text on their activities.