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.
Search for missing man in Rhône
Emergency services are searching the Rhône in Geneva tonight for a young man who failed to resurface after jumping into the river with three friends.
Geneva worst for traffic
Geneva is now the most congested city in the country, with Lausanne in third place.
Geneva's cross-border compensation payment to France reaches record CHF 411m
Geneva will transfer a record CHF 411 million to France this year under the Financial Compensation scheme, up from CHF 396 million last year.
Crans-Montana bar accountant facing criminal allegations
The investigation into the deadly Crans-Montana bar fire has taken a sharp new turn.
Geneva tops list for cocaine use
Cocaine use in Switzerland continues to rise, according to a new study by Addiction Switzerland.
Bol d'Or rocked by controversy
Controversy has overshadowed the 87th Bol d'Or sailing competition this weekend.
