Rents may rise again, says the bank Raiffeisen.
The bank says the war in the Middle East is pushing up energy prices, which risks driving up construction costs and ultimately rents.
A 10% rise in oil prices translates into a 1% increase in construction tariffs.
The Lake Geneva region is particularly exposed, with vacancy rates at just 0.6%, against a national average of 1% - while building work is historically low.
Switzerland faces CHF 1 billion bill on EU frontalier reform
Switzerland could be forced to pay around CHF 1 billion a year under an EU reform of cross-border worker unemployment benefits.
Swiss police chiefs warn anti-immigration vote risks security
Switzerland's cantonal police chiefs are warning that a yes vote on the SVP's "No to 10 million" initiative would seriously compromise Swiss security.
SBB to retire 400 asbestos-contaminated trains
The Swiss federal railways are preparing to retire around 400 trains contaminated with asbestos or other hazardous substances.
Parliament to debate seizing unused army weapons
The Swiss National Council will debate this summer whether to confiscate former army weapons that have been sitting unused in homes for more than a decade.
Winterthur knife attacker placed in pretrial detention
The 31-year-old Turkish-Swiss man suspected of last Thursday's knife attack in Winterthur has been placed in pretrial detention.
France's No G7 coalition drops Annemasse protest
Activists planning a major counter-summit just over the French border from Geneva have called the protest off, two weeks before G7 leaders meet at Évian-les-Bains.
