Swiss Lex Koller Guide: Buying Real Estate in Switzerland as a Foreigner

Navigating the Swiss real estate sector requires a clear understanding of federal property restrictions. Real estate acquisitions by non-residents, foreign corporations, and certain foreign permit holders are strictly regulated under the Federal Act on the Acquisition of Real Estate by Persons Abroad, commonly referred to as the Lex Koller.

The Lex Koller establishes clear legal boundaries to prevent external capital from driving up localized property speculation and housing shortages. Understanding your specific compliance classification is the vital first step toward securing Swiss residential or commercial assets.

Important Regulatory Notice: The Swiss Federal Council is currently evaluating strict structural updates to this legal framework. The proposed revisions aim to restrict commercial property leasebacks and tighten secondary domicile retention. For a complete analysis of these impending legislative changes, read our strategic market brief on the 2026 Lex Koller Tightening Proposals.

1. Compliance Framework by Residency & Permit Status

Your right to purchase real estate without a formal cantonal authorization is determined strictly by your legal nationality and your physical residency status within Switzerland.

2. Regulations for Non-Resident Vacation Dwellings

Foreign nationals who do not maintain a physical domicile or permit status in Switzerland face strict caps when acquiring holiday real estate. The law contains rigid boundaries to ensure these acquisitions do not displace local communities:

• Designated Tourism Zones: Non-residents are barred from purchasing residential property in primary economic hubs like Zurich, Geneva, Basel, or Bern. Acquisitions are legally restricted to designated tourism communes within specific cantons, including Valais, Graubünden, Vaud, Ticino, and Bern.

• The Annual Quota Pool: The federal government enforces a strict ceiling of 1,500 holiday home permits per year distributed across the authorized tourism cantons. Each local municipality manages its slice of this quota pool independently.

• Net Living Space Restrictions: A holiday home or apartment acquired by a non-resident cannot exceed 200 square meters of net living space. This calculation encompasses all habitable rooms, kitchens, and hallways, but explicitly excludes open balconies, unheated verandas, and basements.

• Total Plot Size Thresholds: The land plot accompanying a standalone holiday chalet cannot exceed 1,000 square meters. If a purchase exceeds this spatial threshold, the buyer must prove to the cantonal land registry that the extra terrain is topographically necessary to protect against landslides or structural erosion.

• Operational Lease Constraints: Holiday properties under the Lex Koller quota cannot be operated as full-time investment properties. The owner must occupy the chalet for portions of the year; it may only be sublet on a short-term, seasonal basis for a maximum of around 10 months annually.

3. The Andermatt Exemption Anomaly

The master-planned mountain resort of Andermatt, located in Central Switzerland, represents a unique legal exception to the baseline law. To foster long-term international economic development, the Swiss Federal Government granted Andermatt a permanent, legally binding exemption from the Lex Koller.

Within this specific resort perimeter, non-resident foreign buyers can purchase luxury apartments, villas, and penthouses with:

• Zero permit requirements or cantonal authorization reviews.

• No net living space caps (properties can safely exceed the standard 200 square meter threshold).

• Complete freedom to rent properties out on a full-time, year-round basis via managed resort rental pools.

• Exemption from the Lex Weber “second-home” cap, which normally limits secondary residences to 20% of a municipality’s total housing stock.

4. Underwriting and Transaction Mechanics

Financing and closing a property transaction in Switzerland as an international buyer involves structured banking criteria and localized cantonal fees:

Mortgage LTV Allocation

Swiss financial institutions underwrite international buyers using conservative risk profiles. While a local resident can secure a primary mortgage with a 20% down payment, non-resident buyers are systematically required to provide between 35% and 50% in cash equity, depending on the lending bank’s evaluation of the asset and the buyer’s underlying base currency.

Cantonal Closing Cost Variance

Real estate closing costs are not centralized in Switzerland. Total transaction expenses—comprising land registry fees, notary public rates, and property transfer taxes—vary drastically by region. For example, total transactional friction hovers at a lean 0.4% in Canton Zurich, but climbs to over 4.0% of the total purchase price in Canton Geneva.

5. Leverage the Global Marketplace on ClubProperty.com

Navigating the nuances of the Swiss property market requires a streamlined distribution channel that connects buyers, agents, and compliant assets without adding layers of friction.

ClubProperty.com eliminates traditional marketplace roadblocks:

• Commission-Free Environment: Our platform operates completely without transaction or matching commissions, allowing local Swiss brokerages and international capital to deal directly with one another.

• Automated Listing Integration: Swiss agencies and developers can utilize our automated URL and XML feed synchronization tools to seamlessly mirror their entire luxury and commercial inventory onto our global portal.

• Granular Financial Evaluation: Use our built-in property valuation tools to run precise financial projections. Input hyper-local variables like Swiss occupancy rates and cantonal property taxes against true net operating incomes to calculate precise Cash-on-Cash returns.