Czech BIM Act 2027: Information Models, CDE and IFC
A careful explanation of Czech Act No. 330/2025 Coll., its 2027 commencement and the difference between legal duties and good BIM practice.
Czech Act No. 330/2025 Coll. is commonly called the BIM Act. Its main commencement is 1 January 2027, but it does not impose BIM on every building or every public authority.
Scope must be checked
Applicability depends on the contracting body, procurement type, threshold, project and statutory exceptions. Project-specific legal analysis is required.
More than a 3D model
The framework concerns managed information across the asset lifecycle, including requirements, information containers, roles, processes and structured data.
Common data environment
A CDE is a governed process and technology environment with permissions, states, approvals, versions and audit trails.
IFC
IFC is an open data-exchange standard. The law should not be reduced to a generic requirement for one IFC 4.3 file; project requirements must define version, content and validation.
Preparation during 2026
Organisations should review projects, roles, contracts, CDE capability, information standards and validation capacity, then run controlled pilots.
Need deliverables that remain usable
Before commissioning the work, define the purpose, survey scope, required accuracy, deliverable formats and acceptance checks in writing. DigiStav provides surveying, building records, 2D documentation, point clouds and BIM-ready outputs for buildings, infrastructure and industrial assets. The scope should always follow the intended use rather than a generic package.
This article provides general technical information. It is not a substitute for project-specific legal, surveying, engineering or professional-authorisation advice.
Verified sources and further reading
Czech Building Act No. 283/2021 Coll.: https://www.zakonyprolidi.cz/cs/2021-283 · Czech Decree No. 131/2024 Coll. on construction documentation: https://www.zakonyprolidi.cz/cs/2024-131 · Czech Act No. 330/2025 Coll. on construction and built-environment information management: https://www.zakonyprolidi.cz/cs/2025-330 · Czech BIM implementation portal and Building Data Standard: https://www.koncepcebim.cz/ · buildingSMART International – IFC and openBIM: https://www.buildingsmart.org/