Lex Weber Explained to Owners: What It Changes for Your Rental Project

As soon as buying or renting out a property in a resort comes up, one name keeps returning: the Lex Weber. Many owners perceive it as a vague constraint that “bans second homes”. The reality is more nuanced — and, for a rental project, often more favourable than you might think. Here is what it really says and what it changes for you in concrete terms.

Where does the Lex Weber come from and what does it say?

The “Lex Weber” refers to Article 75b of the Swiss Federal Constitution, adopted by popular vote in 2012, and its implementing legislation on second homes. Its principle fits in one sentence: in any municipality where the share of second homes exceeds 20% of the housing stock, the creation of new second homes is in principle prohibited.

The aim was to curb the urban sprawl across the Alpine landscape caused by “cold beds” — those apartments bought for a few weeks’ use per year and left empty the rest of the time. In practice, since almost all resorts far exceed this 20% threshold, a simple rule can be retained: in the resorts, no new second homes are being built.

Second home or “warm bed”: the distinction that changes everything

This is where the nuance matters for an investor. The Lex Weber distinguishes two things:

• The second home in the classic sense: a dwelling occupied occasionally by its owner, whose creation is frozen in saturated municipalities.
• The dwelling designated for tourist accommodation — the “warm bed” — that is, a dwelling rented out in a lasting and structured way. This category escapes some of the restrictions, precisely because it serves the tourist economy instead of standing empty.

In other words, a property dedicated to rental is not treated like a dormant second home. For a landlord-owner, this is no small detail: it is what makes a rental project possible where the purchase of a “classic” second home would be blocked.

What you can buy

The Lex Weber does not freeze the market for existing properties: second homes that existed before the law came into force remain freely saleable and purchasable. You can therefore perfectly well acquire an existing apartment or chalet to rent it out.

The most interesting ground for an investor often remains the dwelling already designated for tourist accommodation, or new-build projects explicitly designed for regulated rental, which legally circumvent the freeze. This is a point we systematically examine before a purchase — you will find it detailed in our guide to buying to let in Verbier.

What you can rent out

On the rental side, the good news is that the Lex Weber does not prohibit renting out — it targets the creation of empty dwellings, not putting them on the market. On the contrary, renting out your property goes in the direction the law intends.

That leaves the municipal rules, which are layered on top of the Lex Weber and vary greatly from one resort to another: some actively encourage rental, others regulate it, and a few even require dwellings designated for tourist use to be effectively rented out. These local rules are often more decisive in day-to-day practice than the federal law itself. We detail them resort by resort — see for example the regulations in Zermatt or the regulations in Verbier — because that is where your concrete obligations are determined.

The pitfalls to avoid

Three mistakes come up frequently:

• Confusing the property’s status with its use. What matters is not only how you intend to use it, but how it is legally designated. The same apartment can be a “second home” or “tourist accommodation” depending on its history and its permit.
• Ignoring the construction date. The rules differ between a property predating the Lex Weber and a recent build.
• Overlooking the condominium (PPE) regulations. The co-ownership can restrict short-term rental independently of any cantonal or federal law.

Before committing, the right reflex is to have the precise status of your property established. That is exactly what we do during the audit, and it is also one of the points covered by our rental management, which includes monitoring your compliance.

An asset at resale too

A point often overlooked: by freezing the creation of new second homes, the Lex Weber has mechanically strengthened the value of existing properties. With supply now limited in saturated resorts, older second homes and dwellings designated for tourist accommodation benefit from structural scarcity. For an owner, this means that the property you buy today to rent out is also an asset whose value is underpinned by the law itself.

This scarcity nevertheless has a flip side: it pushes purchase prices upwards, which reinforces the importance of thinking in terms of yield (rental income relative to the price paid) rather than mere hoped-for capital gains. A property bought too dear remains too dear, even when protected by scarcity. That is the whole point of estimating the real rental potential before buying and cross-checking it against the property’s Lex Weber status — the two analyses go hand in hand.

Finally, bear in mind that the application of the Lex Weber is being refined over time through case law and municipal practice: what is tolerated in one resort is not necessarily tolerated in the neighbouring municipality, and interpretations evolve. A property that is perfectly rentable today deserves an up-to-date verification of its status before any major commitment.

In summary

The Lex Weber is not the bogeyman it is imagined to be for a landlord-owner: it freezes the creation of empty second homes, but leaves plenty of room for structured rental and for buying existing properties. The key is to think in terms of designation (second home vs tourist accommodation) and to cross-reference the federal law with the municipal regulations and those of your condominium (PPE).

Do you have a specific property in mind, or do you want to verify the status of yours? Our free owner audit reviews your regulatory situation and your revenue potential within 24 hours.