How the Swiss property buying process works for international buyers

Buying property in Switzerland as a foreign national can be challenging. The process is highly structured, legally layered and competitive, particularly in the most sought-after alpine destinations. With the right guidance, however, it is far more navigable than most international buyers expect.

• Switzerland operates a structured process managed through cantonal authorities, experienced real estate agents, and a notary.
• Foreign buyers face additional requirements under Lex Koller, the federal legislation that restricts the acquisition of certain Swiss residential property by foreign nationals.
• In popular ski resorts such as Verbier and Crans-Montana, supply is heavily restricted by both Lex Koller and Lex Weber, the federal second-home legislation introduced to limit the proportion of holiday homes within Swiss municipalities.
• Zermatt operates particularly restrictive rules for foreign purchasers. Eligibility depends on residency status, the specific property, and applicable local regulations, making case-specific advice essential before proceeding.
• Swiss banks apply stringent affordability criteria, and non-residents typically need between 35% and 50% equity.
• Every property purchase in Switzerland is completed through a public notary.

Before you look at a single property, you need to understand what you are legally permitted to buy. This is the single most important thing that separates a smooth Swiss property purchase from a frustrating one.

Swiss property law distinguishes between buyers based on residency status, nationality, and the type of property being purchased.

Those holding a permanent residence permit have the same rights as Swiss nationals. C permit holders can acquire property, including a primary residence, investment property, or holiday home, without the restrictions that apply to other foreign buyers.

EU/EFTA nationals holding a B permit (the annual residency permit) can generally buy a primary residence without cantonal authorisation. This extends to secondary residences and holiday homes: EU/EFTA B permit holders are not subject to Lex Koller, meaning cantonal authorisation is not required. EU/EFTA B permit holders are not excluded from buying in resort areas, though supply constraints under Lex Weber still apply.

Non-EU/EFTA nationals who hold a Swiss B permit and are resident in Switzerland can generally acquire a primary residence in Switzerland without cantonal authorisation. However, once you own a primary residence in Switzerland, you cannot also acquire a secondary property or holiday home. A non-EU/EFTA national who owns a primary residence in Geneva, for example, is not permitted to purchase a holiday apartment in Verbier.

Anyone without a Swiss residence permit is subject to the most restrictive conditions under Lex Koller. Purchasing residential property as a non-resident typically requires cantonal authorisation, and holiday home purchases in designated tourist areas are subject to permit quotas.

In Valais, both Crans-Montana and  Verbier are accessible to non-resident foreign buyers, with permits available through the cantonal quota system.  Zermatt is a different case. Zermatt is subject to particularly restrictive rules governing foreign ownership. Whether a property can be acquired depends on the buyer's residency status and the property's legal classification, so specialist advice should be sought before progressing with a purchase.

All three resorts are areas where Steiger&Cie's expertise and local knowledge can guide you, but understanding which is open to you depends on your specific residency status.

If your circumstances are complex (dual nationality, a B permit application in progress, you have a Swiss employer, for example), take independent legal advice before you proceed.

Switzerland's financing landscape is markedly different from the UK, the US, or most of continental Europe. Swiss banks are cautious by design, and the affordability rules are strict.

For a secondary residence such as an alpine holiday home, Swiss banks will typically lend between 50% and 65% of the property's value. This means that buyers should expect to fund at least a third of the purchase price themselves. For non-resident foreign buyers, lenders routinely require more equity, so in practice, you should expect to fund between 35% and 50% of the purchase price.

Swiss banks assess mortgage applications not against the actual mortgage rate on offer, but against a theoretical stress-test rate of around 5%, applied to the full mortgage debt. Given that current Swiss mortgage rates sit between 1% and 2%, it can mean applicants qualify for considerably less than they expect.

Lenders also tend to consider three additional costs;

●      Amortisation of the second mortgage, typically calculated over a 15-year period for a residential property;
●      A maintenance and running cost, often estimated at 1% of the property’s value per year;
●      Any other recurring financial commitments that the borrower may already have. This could include items such as car lease payments, personal loans or maintenance obligations.

Most Swiss lenders apply an affordability test under which the combined total of these costs should not exceed approximately one-third of the borrower's gross income.

Securing mortgage pre-approval before you begin your property search signals to sellers that you are a serious buyer. In a market where the best properties attract multiple interested parties, having a formal mortgage offer or pre-approval letter in hand before you view is a genuine advantage. For high-net-worth individuals with complex wealth structures like investment portfolios, business equity, and offshore holdings, private banking relationships offer considerably more flexibility than standard retail mortgage products and are worth establishing early. Whichever route you take, it is worth seeking out a lender with a local presence in the relevant canton. Local branches understand the resort market and are better placed to assess alpine property values than a city office.

International buyers should also expect detailed anti-money laundering (AML) and source-of-funds checks from both lenders and notaries. Documentation relating to income, investments, business interests, inheritances, asset sales, or other sources of wealth may be required. Preparing this information in advance can significantly reduce delays later in the process.

For buyers whose wealth sits outside Switzerland, in sterling, dollars, or euros, the exchange rate movement has a material impact on the cost of your purchase. The Swiss franc is one of the world's most resilient currencies, and a rate shift of 5% to 10% on a multi-million franc purchase is a meaningful sum.

The two main moments of currency exposure are the deposit paid when moving to the contract and the final transfer at completion. For buyers going through cantonal authorisation, these can be separated by several months. A forward contract, available through specialist FX providers, locks in the rate for a future payment date and removes this uncertainty. It is worth discussing the timing of currency conversion with both your private banker and an FX specialist before you are committed to a timeline.

Lombard lending (borrowing against a pledged investment portfolio) can, in some circumstances, allow buyers to fund a purchase in francs without converting assets, offering both financing flexibility and currency efficiency.

In Swiss resort markets, a significant proportion of the best properties are never publicly listed. At Steiger&Cie Sotheby's International Realty, many of the properties we sell in Crans-Montana, Verbier, and Zermatt are presented exclusively to our network before any wider listing takes place. Working with an agent genuinely embedded in the local market is the only way to access the full range of what is available and to get accurate guidance on permit eligibility, cantonal renovation rules, and property value.

Lex Weber (the federal law adopted by referendum in 2012) caps secondary residences at 20% of any municipality's total housing stock. In Verbier, Zermatt, and Crans-Montana, that threshold was crossed long ago. No new holiday homes can be built in these resorts, meaning the only properties available are those which had a valid building permit in place before 11 March 2012, and that pool is not growing.

The one exception is serviced apartments made available for tourist rental under specific conditions. These are classified as commercial property for both legal and financing purposes, which means the lower commercial LTV (typically 50% to 60%) applies rather than the residential secondary home rate. These remain permissible even in capped municipalities, and this route is increasingly used by international investors. Supply is structurally constrained, demand continues to grow, and the finest properties attract serious competition. When you find something you want, moving decisively matters.

In Switzerland, an offer to purchase is submitted in writing through your agent, specifying the purchase price, any conditions (financing, permit approval), and a proposed timeline. Verbal offers carry little weight.

Once the parties have agreed on the main terms, the notary begins preparing the sale contract directly. At this stage, buyers are often required to pay a deposit, commonly around 10% of the purchase price, although arrangements can vary depending on the transaction and canton. Before this point, your legal advisor should have reviewed the conditions under which the deposit is refundable, particularly if cantonal authorisation is refused or financing cannot be secured.

Between the exchange of terms and the signing of the notarial deed, due diligence covers: verification of the property's title at the land registry (confirming no encumbrances or disputes); confirmation that the property's use is consistent with what has been represented, particularly important for older properties in Lex Weber-affected communes; and confirmation of the cantonal permit timeline. Your agent and notary will guide this, but an independent legal advisor with direct experience in Swiss property law provides an important additional layer of protection.

Independent technical surveys are not common in Swiss residential property transactions. Buyers generally acquire the property as seen, and are protected by law against defects that were knowingly concealed by the seller.

While it is possible to commission an independent survey, this is uncommon in practice. The process can be time-consuming and may weaken a buyer's negotiating position, particularly in a competitive market. There is also no single company that can assess a property comprehensively, as different elements such as the structure, roof, heating system, and electrical installations each require a separate specialist.

The main exception is the electrical installation report. Swiss law requires a valid electrical safety inspection to be in place, and where the most recent inspection is more than five years old, an updated inspection must be carried out as part of the transaction.

For foreign buyers subject to Lex Koller, the cantonal authorisation process runs in parallel with due diligence. Applications are submitted to the relevant cantonal authority, setting out the buyer's personal details, nationality, residency status, and the specifics of the purchase.

Authorities assess whether the property falls within a designated tourist area, whether the buyer is purchasing a primary residence or holiday home, and whether the canton's annual quota has been reached. Valais is the canton with the largest annual allocation of foreign buyer permits in Switzerland. As a result, authorisations for holiday homes in designated resort areas are generally available, making Crans-Montana and Verbier accessible to international buyers when much of the country is not.

Lex Koller authorisations for holiday homes include specific size restrictions: a maximum plot area of 1,000 m² and a maximum net habitable living space of 200 m², with a possible additional 50 m² where this can be justified. These limits should inform your search from the outset.

These thresholds are measured in net habitable living space, which is not the same as the gross sales surface typically advertised by agents. Sales surfaces are generally calculated on a gross basis and often include a proportion of balconies and terraces, meaning a property marketed at a given floor area may have a meaningfully lower net habitable figure for Lex Koller purposes. Your agent will be familiar with how this applies to specific properties in your target resort.

Signing the notarial purchase deed (the acte de vente) creates the binding obligation to complete the transaction. Legal ownership is generally transferred upon registration in the land register. Every property purchase in Switzerland must be completed through a licensed public notary: a public official whose role is to ensure compliance with Swiss property law, verify both parties' identity, confirm cantonal authorisations, and execute the transfer formally. The notary also submits the change of ownership to the land registry.

Beyond the purchase price, buyers should budget for transfer costs, which in Valais comprise property transfer tax, notary fees, and land registry fees. In practice, these typically total between 2.5% and 2.8% of the purchase price, so budgeting 3% is a sensible conservative allowance.

An agent's commission in Switzerland is typically paid by the seller, not the buyer, and generally runs to between 3% and 5% of the sale price.

Once the deed is signed and the purchase price transferred through the agreed completion mechanism, often via a notary-controlled client or escrow account, the notary submits the documentation to the cantonal land register (the registre foncier), a publicly accessible record of ownership, encumbrances, and rights of way. Registration is the moment of formal legal ownership transfer, typically completed within two to four weeks of the deed signing.

The timeline depends largely on your buyer profile and whether cantonal authorisation is required.

For foreign buyers requiring cantonal authorisation, the total process from accepted offer to registered ownership typically takes four to six months. In straightforward cases with complete documentation and no quota complications, it can be closer to three months. Complex cases, unusual ownership structures, and incomplete documentation, for example, can take longer.

The breakdown by stage:

●      Offer accepted to cantonal authorisation decision: Once the main terms are agreed and the 10% deposit has been transferred to the notary's escrow account, the permit application is typically filed by the notary within one to two weeks. In Valais, the cantonal authority's decision on a routine holiday home purchase takes four to eight weeks, with a maximum wait time of twelve weeks.

●      Notarial deed preparation and signing: One to three weeks once authorisation is confirmed.

●      Land registry registration: A further two to four weeks after deed signing.

For EU/EFTA nationals or C permit holders not requiring cantonal authorisation, the timeline from accepted offer to registered ownership is typically six to twelve weeks.

The most common cause of delay across all buyer categories is incomplete financial documentation for the mortgage application. Assembling proof of income, source of funds, and asset documentation before you begin your search, rather than after you have found a property, ensures wait times are kept to a minimum throughout the buying stage.

These are some of the most common mistakes international buyers encounter when purchasing property in Switzerland. With the right guidance, every one of them is entirely avoidable.

Not every property in a popular alpine resort is available to non-resident foreign buyers. Some have been converted in ways that affect their Lex Weber status; others sit in locations where the cantonal quota has already been reached. Verify eligibility before you get attached; your agent should do this at the outset of any serious search.

In Switzerland, a deposit of around 10% is typically required once the notary begins preparing the sale contract. Payment schedules can vary depending on the transaction and canton, and new-build purchases may involve a different structure again. Understand what is required and when before you are committed to a timeline.

Under Lex Weber, older secondary homes in capped municipalities face strict rules on what can be altered or extended. If the plan is to buy and significantly improve, check what is actually permissible with a locally qualified adviser before agreeing on a price.

Switzerland requires owner-occupiers to declare a notional rental value, typically 60% to 70% of market rent, as taxable income, even if the property is never rented out. It regularly surprises international buyers at their first Swiss tax filing.

Sellers in prime resorts expect certainty. Buyers who arrive without financing in place consistently lose out to those who are ready.

Properties purchased under Lex Koller authorisation may be subject to restrictions on resale, often including minimum holding periods. Buyers should verify the specific conditions attached to their authorisation before proceeding.

The Swiss property buying process for international buyers involves more steps than purchasing in many other countries, and each step requires care. But it is a structured process managed by experienced professionals, and for buyers who approach it with the right preparation, it is far more straightforward than the regulatory landscape initially suggests.

Before starting, the most important steps are: understand your residency status and what Lex Koller permits you to buy; secure mortgage pre-approval before you begin searching; work with an agent who knows the local market, the permit system, and the specific cantonal rules; build in enough time for cantonal authorisation; and engage independent legal advice.

Switzerland's Alpine property market rewards those who take the time to understand how it works. The regulatory framework that makes it complex for foreign buyers is the same framework that protects property values, limits supply, and makes the finest properties in Verbier, Zermatt, and Crans-Montana among the most coveted real estate in the world.

For international buyers, navigating the Swiss property buying process is considerably simpler with a team that has done it hundreds of times. Steiger&Cie Sotheby's International Realty works exclusively in Crans-Montana, Verbier, and Zermatt, combining decades of local market knowledge with expertise in the legal and regulatory framework that governs foreign property purchases in these resorts.

We guide our clients through every stage of the process, from initial eligibility assessment and property search through to notarial signing and land registry registration. While the cantonal permit application is handled by the notary and due diligence requires independent legal counsel, we coordinate with all the parties involved, keep the process moving, and draw on a network of trusted legal advisors, tax specialists, and private bankers who work regularly with international buyers in these resorts.

If you are considering purchasing property in the Swiss Alps, get in touch with our team for a confidential, commitment-free conversation.