On April 15, 2026, the Swiss Federal Council opened a public consultation on the most significant tightening of Lex Koller since the law was enacted in 1983. The proposed changes target virtually every route that non-EU investors use to access Swiss real estate — direct ownership, commercial property, listed funds, and holiday homes.

The consultation runs until July 15, 2026. The parliamentary process means final enactment is unlikely before 2028. But the direction is clear, and the window to act under current rules is finite.

What Lex Koller does today

Lex Koller regulates the acquisition of Swiss real estate by “persons abroad” — a category that includes non-EU/EFTA nationals, non-residents, and foreign-controlled entities. The law was designed to prevent excessive foreign ownership and speculative purchases in a market where housing supply is structurally constrained.

Under current rules, non-EU/EFTA nationals holding a valid Swiss residence permit (B or C) can buy a primary residence without authorization. Commercial properties are generally exempt. And listed real estate securities — fund units, SICAV shares, shares in real estate companies — are freely accessible regardless of nationality.

These three exemptions have allowed international investors, particularly from the Gulf, Asia, and the Americas, to build meaningful exposure to Swiss real estate. The proposed changes close all three.

What changes — concretely

Primary residences: authorization required, forced sale if you move. Non-EU/EFTA nationals will need a specific acquisition permit to buy a primary residence — even with a valid B permit. If the owner subsequently leaves Switzerland, the property must be sold within two years. This transforms what was a straightforward purchase into a conditional, revocable right. For investors who obtain Swiss residency partly for real estate access, the calculus changes fundamentally.

Commercial property: own use only. Under current law, foreign buyers can acquire commercial real estate without restriction. The proposed amendment draws a hard line: purchases for own operational use remain permit-free, but acquisitions as capital investments — for letting or leasing to third parties — would be prohibited outright. This closes one of the most commonly used structures for foreign capital entering Swiss real estate.

Listed real estate securities: de facto ban. The Federal Council proposes to prohibit foreign persons from acquiring listed shares in residential real estate companies, units of real estate investment funds, and SICAV units. Exchange participants — brokers and banks — would be required to verify buyer nationality before executing any order, with criminal sanctions for violations. This extends beyond exchange-listed securities to include non-listed but regularly traded fund units.

Holiday homes: reduced quotas, resale loophole closed. Cantonal quotas for foreign purchases in designated tourist areas will be reduced. More significantly, sales between foreign owners — which currently do not count against quotas — would once again require authorization, with each transaction counted against the cantonal allocation.

What stays the same

EU and EFTA citizens with valid residence permits remain largely unaffected. Swiss citizens, including dual nationals, are fully exempt. Existing ownership is not retroactively challenged. And transactions completed before the new law takes effect benefit from grandfathering protections.

The political context

The timing is not accidental. Switzerland votes on June 14, 2026 on the SVP’s initiative to cap the population at 10 million. The Federal Council opposes the initiative — it would jeopardize free movement agreements with the EU — but needs to demonstrate that it takes housing pressure seriously. The Lex Koller tightening serves both as genuine policy and as a signal to voters.

The government’s own impact study acknowledges that tighter rules could complicate large development projects and do little to resolve structural housing shortages. The changes are not primarily an economic measure. They are a political one.

What this means for international investors

For a non-EU investor evaluating Swiss real estate from Dubai, Singapore, or London, the picture shifts substantially.

Direct residential acquisition becomes conditional and revocable. A Gulf investor who buys a Geneva apartment as a primary residence would face forced divestiture within two years of leaving Switzerland. The property is no longer a stable long-term asset — it is tied to residency status.

Commercial property as investment is no longer an option. The “buy and rent” strategy for office buildings, retail spaces, or mixed-use properties in Geneva or Zurich would be prohibited. Only owner-occupiers qualify.

Indirect exposure via funds is being shut down. The listed real estate securities ban eliminates the most liquid, lowest-barrier route into Swiss real estate for foreign capital. Swiss real estate funds — among the most stable performers in European markets — would become effectively inaccessible to non-EU investors.

The structures that remain: Swiss-incorporated operating companies using commercial property for their own business. Joint ventures with Swiss partners where the foreign party does not hold a controlling interest. And existing positions, which are grandfathered.

The two-year window

The legislative process provides approximately two years during which current rules remain in force. Legal advisors are already recommending that clients with existing acquisition plans accelerate.

For commercial property investors: transactions closed under the current regime benefit from grandfathering. Once the revised law is enacted, purchases for rental purposes would be outright prohibited.

For fund investors: building or completing positions in listed Swiss real estate securities now, before the ban takes effect, secures exposure that would otherwise become unavailable.

For primary residence buyers: completing the purchase before the new authorization requirement takes effect avoids both the permit process and the forced-sale obligation.

This is not a reason to rush into bad deals. But it is a reason to move decisively on good ones.

Conclusion

Switzerland has spent four decades building a reputation as one of the safest, most stable real estate markets in the world. That stability attracted exactly the kind of foreign capital that Lex Koller now seeks to restrict. The proposed changes do not make Swiss real estate a bad investment — they make it a harder one to access. The investors who understand the new rules, structure accordingly, and act within the window will still find opportunities. The ones who wait will find a closed door.

Sources: Federal Council press release — April 15, 2026, Baker McKenzie — What Lex Koller Tightening Means for Investors, Nievergelt und Stoehr — Proposed Tightening, Immoday — Fonds immobiliers et étrangers