Construction prices 2026: what the indices say

The April 2026 figures

According to the Swiss construction price index (base October 2025 = 100, excluding VAT), as reproduced by Statistique Genève, prices rose by 1.0% over one year in Switzerland (buildings: +0.9%; civil engineering: +1.2%). In the Lake Geneva region, the increase is 0.9%.

Differences by type of work

In Geneva, based on the half-yearly change by type of work, structural work 2 (windows, waterproofing, façade rendering) is up 2.3% and plumbing installations 0.9%, whereas heating and ventilation is down 0.6% and electrical installations 1.8%. In the renovation of multi-dwelling buildings to the Minergie standard, the annual increase is 1.0%.

How to read these indices

• An index measures a trend, not the price of your project: your building depends on its nature, its size and the timing.
• Items do not move together: a project heavy in envelope and façade does not follow the same trend as one focused on building services.
• The figures quoted relate to the index; they replace neither an estimate by CFC nor a comparison of tenders.

What this means for the budget

A budget drawn up early must be indexed, with written assumptions. The more time passes between the estimate and the signing of contracts, the wider the gap can become. This is one more reason to have tenders compared on the same basis and to fix prices through clear contracts.