
Buying real estate in the Swiss Romandy region is not like purchasing property in France or Belgium. The financing rules, equity requirements, and legal framework necessitate specific preparation well before the first visit.
Revision of the Lex Koller: What Changes for Foreign Buyers in 2026
Are you a cross-border worker, expatriate, or a non-EU/EFTA national? The buying strategy in Swiss Romandy is changing. On April 15, 2026, the Federal Council launched a project to revise the Lex Koller, currently under consultation, which aims to further restrict access to property for people from abroad.
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Among the proposed changes:
- Nationals from non-EU/EFTA countries living in Switzerland without a C residence permit would again need authorization to purchase their primary residence.
- A resale obligation within two years is planned if the property is no longer used as a primary residence, with municipal oversight of changes in residence.
- The purchase of shares in listed real estate companies or residential real estate fund units would be prohibited for people abroad, closing the access route via the stock market.
- The quota for secondary residences for non-residents would be halved, with some targeted relaxations for staff housing in the hospitality sector.
These measures are not yet in effect, but they indicate a clear tightening. If your acquisition project involves a secondary residence or if you do not yet have a C permit, it is better to anticipate administrative timelines now. Several specialized agencies assist with this type of process in Swiss Romandy, for example at https://blue-immo.ch/ where properties are filtered by canton and project type.
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Real Estate Budget in Swiss Romandy: Equity and Actual Capacity
The first filter, which eliminates the majority of projects, is the amount of equity. In Switzerland, you must contribute at least 20% of the purchase price for a primary residence. This is non-negotiable.
This threshold seems simple, but it hides a nuance. Part of this 20% must come from liquid assets or funds outside of the pension fund (at least 10% of the price). The remainder can come from the second pillar (LPP), but not the entire amount.
Borrowing Capacity: The One-Third Rule
Swiss banks apply a strict calculation. Housing-related costs (mortgage interest calculated at a theoretical rate, second-tier amortization, and maintenance fees) must not exceed one-third of the household’s gross income. This theoretical rate is often set around 5%, well above actual market rates.
A high income is not enough if equity is lacking, and vice versa. Both conditions must be met simultaneously. Many buyers discover this double constraint too late.
Searching for Real Estate: Target Before Visiting
<p Portals like immobilier.ch concentrate the majority of listings in Swiss Romandy. You will find properties in Geneva, Lausanne, Fribourg, or Neuchâtel with filters by price, area, and number of rooms.
Why not start with visits right away? Because the market is tight. House prices continued to rise in 2025-2026, and well-located properties sell within days. Visiting without having finalized the financial aspect is a waste of time.
Three Criteria to Lock In Before the First Visit
Confirm your borrowing capacity with a bank or broker. Obtain a provisional financing certificate. Define a realistic geographical area in relation to your budget, not the other way around.
The price difference between two neighboring municipalities can be spectacular. In the Lake Geneva region, moving a few kilometers away from Lausanne or Geneva significantly changes the price per square meter.

Real Estate Purchase in Switzerland: The Notary Process
Unlike France, the notary in Switzerland is chosen by the buyer in most Romandy cantons. Their role goes beyond simple authentication: they check the land register, easements, any existing mortgages, and draft the sales deed.
Notary fees vary by canton. In Geneva, they are among the highest in Swiss Romandy. In the canton of Vaud, the scale is different. These fees must be included in the overall budget from the start, as they are added to the equity required by the bank.
Timeframe Between the Promise and the Final Deed
The process is generally faster than in France. Once an agreement is reached, the signing of the authentic deed can take place within a few weeks. However, if you are financing with the second pillar, the release of funds adds an additional delay that must be anticipated.
One last often-overlooked point: capital gains tax applies upon resale, and its rate decreases with the holding period. Buying property in Swiss Romandy also means thinking about the exit from the start.