22 September 2026
Michael Schumacher, certified specialist SBA construction and real estate law, explains in the architecture magazine Modulør when designers are liable for design errors and highlights the important changes that will take effect in early 2026.
Planning errors can have significant liability consequences for architects, engineers, and other planners. In his article "Liability for Planning Errors" in the architecture magazine Modulør, attorney Michael Schumacher, a specialist in construction and real estate law certified by the Swiss Bar Association (SAV), outlines the conditions under which planners are liable and the changes in warranty law that have been in effect since the beginning of 2026.
The focus is on the legal classification of planning contracts, warranties under the Swiss Code of Obligations and SIA standards, as well as the regulations in effect since 1 January 2026, regarding notice periods and statutes of limitations, and the conditions under which these legislative changes apply. The article also examines typical liability scenarios arising from design errors and demonstrates how liability risks can be mitigated through clear contractual provisions, quality assurance, and meticulous documentation and project management.
Read the full article in the architecture magazine Modulør:
