Buying an apartment in Geneva: financing and local rules

• Geneva: understand the market before setting your budget
• Financing: the asking price is not the bank value
• Geneva condominiums: check the building, LDTR and development zone
• Purchase costs and Casatax 2026: how much should you really budget?
• Foreign buyers and cross-border commuters: what the Lex Koller changes
• How to prepare a fast purchase file without buying blindly
• Frequently asked questions about buying an apartment in Geneva

Buying an apartment in Geneva is not simply a matter of finding a property and then applying for a mortgage. In one of Switzerland’s most expensive markets, the value accepted by the bank, the legal status of the condominium, Geneva’s sale rules, registration duties and sometimes the Lex Koller can change the financing before you even sign with the notary.

This page therefore focuses on issues that are genuinely specific to Geneva. The aim is not to list property portals or banks, but to help you determine which apartment you can actually finance, which documents to check before making an offer and which local rules can affect the value or timing of the purchase.

Geneva: understand the market before setting your budget

The first difficulty is not to confuse the City of Geneva with the Canton of Geneva. Carouge, Vernier, Meyrin, Lancy, Thônex and Plan-les-Ouates are not city neighbourhoods; they are separate municipalities. Eaux-Vives, Champel, Plainpalais, Saint-Jean and Petit-Saconnex, on the other hand, are part of the City of Geneva. This distinction matters for market analysis, municipal taxation, certain planning projects and transaction comparisons.

According to the cantonal statistics office, the median price of a condominium apartment in the Canton of Geneva was CHF 10,284 per m² in 2024. A cantonal median does not, however, provide a precise valuation of a particular apartment: floor level, view, exposure, noise, condition of the condominium, ancillary spaces, construction date and micro-location can create substantial differences.

Statistics should therefore be used as a reference point, not as an automatic price. Consult the official Geneva property statistics, then compare your property with genuinely comparable apartments. For the bank too, a cantonal average is secondary to the characteristics of the unit and building.

Do not start with your maximum price: identify your financeable price range

Before scheduling viewings, define two different limits. The first is the price your household could theoretically afford. The second is the price the bank will agree to finance for the type of apartments you are targeting. These two amounts can differ.

In an expensive market, this distinction avoids a common trap: having enough income to finance CHF 1.4 million, making an offer at that price and then discovering that the bank values the apartment at only CHF 1.3 million. The issue is no longer your income, but the amount of additional equity required.

Financing: the asking price is not the bank value

For an owner-occupied main residence, a common structure provides for around 20% equity and up to 80% mortgage financing. The lender nevertheless applies its own valuation model. In practice, the loan-to-value ratio is generally calculated on the lower of the price paid and the accepted mortgage lending value.

Example: a CHF 1,300,000 apartment valued at CHF 1,220,000

You agree to a price of CHF 1,300,000. If the bank accepts only CHF 1,220,000, 80% of that value represents a mortgage of CHF 976,000. Your contribution to the purchase price therefore rises to CHF 324,000 before purchase costs, instead of the CHF 260,000 suggested by a simple 20% calculation on the sale price.

The valuation gap therefore costs you CHF 64,000 in additional cash. It does not necessarily mean that the apartment is “too expensive” in market terms; it means that the bank does not want to take that price premium as collateral.

Affordability remains a second filter

Even with sufficient equity, the bank checks affordability. It generally uses an imputed interest rate well above the rate actually paid, adds any required amortisation and a maintenance allowance, then compares those costs with the household’s sustainable gross income. A common benchmark is around one third of gross income.

Bonuses, variable income, self-employed income, maintenance payments, leasing commitments and consumer loans can be treated differently by each lender. This is why comparing only the advertised rate is not enough: two lenders can quote almost the same rate while accepting different financing amounts.

Before serious viewings, use our mortgage calculator, then have your financing range confirmed by a lender or mortgage broker. For a specific property, request an initial bank valuation before committing without a financing condition.

Geneva has an unusual mechanism: a state guarantee

Geneva offers a little-known form of assistance under its law on support for individual home ownership. Subject to conditions, a household that does not have the usual 20% equity can apply for a simple state guarantee for its future main residence.

Since the amendment that came into force in 2024, the scheme may apply to people with at least 5% equity. The state can guarantee up to a further 15%, while the financial institution may lend up to a maximum of 95%. This does not create a right to a 95% mortgage: the bank must accept the structure, assess affordability and provide a financing proposal. The property price must also remain below the applicable ceiling, aligned with Casatax, which is CHF 1,394,928 from 1 March 2026.

This scheme is therefore very different from a general rule stating that a Geneva bank “accepts less than 20% equity”. It is a regulated cantonal mechanism for a main residence and is assessed on an individual basis.

Geneva condominiums: check the building, LDTR and development zone

Buying an apartment means acquiring a private unit as well as a share in a condominium. Before making a binding offer, request at least the condominium regulations, recent meeting minutes, accounts, budget, the balance of the renovation fund and any works that have been approved or are seriously being considered.

A newly renovated apartment may be in a condominium that soon has to finance a façade, roof, lift, pipes or an energy renovation. If your ownership share is 6% of a CHF 1.5 million project not covered by the renovation fund, your theoretical exposure is CHF 90,000. This information can change your maximum price and your liquidity reserve.

In Geneva, some apartment sales are subject to the LDTR

A genuinely Geneva-specific issue is Article 39 of the LDTR (Law on the demolition, alteration and renovation of residential buildings). For certain apartments belonging to a housing category in shortage, the sale is subject to authorisation from the Department of Territory. The aim is to preserve the rental housing stock.

Authorisation is provided for in certain cases, including where the building was constituted as a condominium from construction or met certain historical conditions before 31 March 1985. The land registry checks that the authorisation is present when required. The decision is published in the official gazette and may be appealed within 30 days.

For the buyer, the consequence is straightforward: if the property falls under this regime, the legal timetable of the sale does not depend solely on the seller, buyer and bank. Ask the notary whether LDTR authorisation is required, whether it has been obtained and whether it has become final.

Condominiums in a development zone: the resale price may be controlled

Another Geneva-specific feature concerns condominium units built in a development zone. The state controls their type and sale price. For a new development, a promise to sell or a deed of sale may only be signed after the state has given provisional approval for the sale.

The most important consequence for a buyer appears at resale: during the statutory 10-year control period, an owner reselling a condominium in a development zone is subject to an authorised maximum price calculated by the competent authority. This can limit the potential for a capital gain in the short or medium term and should be factored into your analysis before buying.

Purchase costs and Casatax 2026: how much should you really budget?

In Geneva, a property transfer is subject in the ordinary case to a 3% registration duty. This duty is only one part of the acquisition cost: you must also budget for land-registry fees, the notary’s fees and disbursements and, when a mortgage is created or increased, the costs associated with the mortgage deed.

Casatax can significantly reduce these costs for a main residence

Geneva’s Casatax scheme reduces registration duties and mortgage-note costs when buying a main residence. For 2026, the mechanism applies, subject to conditions, when the property becomes your main residence and its price does not exceed CHF 1,394,928. From 1 March 2026, the indexed reduction in the sale duty is CHF 20,924. Casatax also halves the registration duty, including additional centimes, on the relevant mortgage deeds.

The relief is not granted simply because you declare the property as your main residence on the day of sale. It must actually become your main residence and remain so for at least three years. The tax administration requires a declaration of effective use and proof of occupancy; to secure the relief definitively, this declaration must be submitted within two years of the notarised deed.

Example for a CHF 1,200,000 apartment

Ignoring other costs, a 3% sale duty represents CHF 36,000. If all Casatax conditions are met, the 2026 relief of CHF 20,924 substantially reduces this item. That does not mean your total costs fall to CHF 15,076: the notary, land registry and establishment of the financing still have to be calculated separately.

Ask the notary for a complete estimate before deciding how much equity to commit. Acquisition costs generally have to be financed in addition to the equity allocated to the purchase price; using all your savings for the 20% contribution can leave a liquidity shortfall at signing.

Foreign buyers and cross-border commuters: what the Lex Koller changes

The Lex Koller takes nationality into account, but above all legal and effective residence in Switzerland and the right to settle there.

The Canton of Geneva states, for example, that EU/EFTA nationals are considered persons abroad if they do not have their legal and effective residence in Switzerland. The same applies to nationals of other countries who do not have the right to settle in Switzerland. Where exemption from the authorisation requirement is not clearly established, an authorisation or a decision confirming non-subjection must be requested.

Special case of EU/EFTA cross-border commuters

In Geneva, an EU/EFTA cross-border commuter holding a valid G permit may, under certain conditions, acquire a second home in the region of their place of work, particularly where the plot does not exceed 1,000 m². This specific case must not be generalised to all non-residents or all property projects.

For a main residence, a buy-to-let investment, a second home or a purchase by someone with a complex status, have the notary determine the legal position before signing an irrevocable offer. The bank may also wait until the right to acquire has been clarified before converting an agreement in principle into definitive financing.

How to prepare a fast purchase file without buying blindly

In a market where good properties can quickly attract several candidates, useful speed does not mean signing faster than everyone else. It means having resolved the financial and documentary questions before the seller asks you to make a decision.

• Before viewings: have your affordability calculated, identify the equity you can mobilise and keep a reserve for acquisition costs.
• As soon as an apartment interests you: request the condominium file, meeting minutes, accounts, renovation fund, land-register extract and plans.
• Before making a binding purchase offer: have the property valued by your lender and check whether the price creates a valuation gap that must be financed in cash.
• With the notary: check Casatax, LDTR, any development-zone status, easements, mortgage rights and, where necessary, the Lex Koller.
• With the bank or mortgage broker: compare not only the rate but also the accepted value, amount financed, treatment of variable income, amortisation and exit conditions.

This preparation also allows you to draft a more intelligent purchase offer. A financing condition, a reservation concerning review of the condominium documents or confirmation of an administrative authorisation can be far more important than negotiating a few thousand francs off the price.

To explore this step in more detail, see our guide to property purchase offers and our page about the mortgage broker in Geneva.

Frequently asked questions about buying an apartment in Geneva

In Geneva, the best sequence is to define your financeable range, select the property, examine the condominium and its legal status, obtain an initial bank valuation, calculate Geneva-specific costs and only then make a definitive commitment. This approach reduces the risk of discovering after the offer that the bank, notary or a cantonal regulation imposes a constraint that your budget had not anticipated.

You can submit your Geneva project to us to compare financing options based on your profile and the specific apartment you are considering buying.

Disclaimer: This article is provided for information purposes only. Lending criteria, Casatax thresholds, conditions of the cantonal guarantee, LDTR rules, provisions applying to condominiums in development zones and Lex Koller rules may change or depend on the specific case. Verify current information with the notary, canton and lender before making any commitment.