2025 LOD Specification Public Comment Period Now Open
The draft 2025 LOD Specification has been released for public comment. Industry stakeholders are invited to review the proposed updates and provide feedback to help shape the final release.
Public input is critical to ensuring the LOD Specification reflects current industry practice and supports consistent implementation across the built environment.
📄 Download the draft 2025 LOD Specification
📅 Comment period closes: December 27, 2025
What's new at BIMForum See more
2025 LOD Specification in Spanish
Friday, February 13, 2026
The LOD Specification 2025 is now available in Spanish, expanding access to one of the industry’s most widely used BIM references for defining model content and reliability at different project …
Official Release: 2025 LOD Specification
Wednesday, December 31, 2025
The 2025 LOD Specification is now available from BIMForum. This release continues to provide a structured, consistent framework for defining model expectations and improving collaboration across the built environment.
BIMForum Level of Development (LOD) Specification 2024 – In English and Spanish Language Version
Tuesday, December 31, 2024
BIMForum has published the 2024 Level of Development (LOD) Specification in an English and Spanish language version. The publication of the 2024 LOD Spec in Spanish Language has been made …