BIM in the HOAI 2025: Remuneration with construction sites

The current draft amendment to the Fee Structure for Architects and Engineers (HOAI 2025) systematically addresses BIM services for the first time. However, key questions remain unanswered: Responsibilities are neither clearly regulated nor are there binding specifications for the remuneration of additional services.

In a specialist article for immobilienmanager magazine, Dr. Thomas Bahnert, Head of the Center of Competence Contract Management at THOST Projektmanagement,analyzes the structural weaknesses of the HOAI draft – including the lack of integration of important specialist disciplines such as surveying or building physics as well as the unclear definition of BIM-specific control tasks.

His conclusion: As long as the HOAI does not provide clear regulations, planners and clients are required to ensure legal certainty through clear contractual agreements and transparent remuneration models.