BIM maturity levels
The range of levels that this form of modelling can take are described as 'maturity levels' and are described below.
Unmanaged computer aided design (CAD) including 2D drawings, and text with paper-based or electronic exchange of information but without common standards and processes. Essentially this is a digital drawing board.
Managed CAD, with the increasing introduction of spatial coordination, standardised structures and formats as it moves towards Level 2 BIM. This may include 2D information and 3D information such as visualisations or concept development models. Level 1 can be described as 'Lonely BIM' as models are not shared between project team members.
Managed 3D environment with data attached, but created in separate discipline-based models. These separate models are assembled to form a federated model, but do not lose their identity or integrity. Data may include construction sequencing (4D) and cost (5D) information. This is sometimes referred to as 'pBIM' (proprietary BIM).
In the UK the Government Construction Strategy published in May 2011, stated that the '...Government will require fully collaborative 3D BIM (with all project and asset information, documentation and data being electronic) as a minimum by 2016'. This represents a minimum requirement for Level 2 BIM on centrally-procured public projects.
See Level 2 BIM for more information.
A single collaborative, online, project model with construction sequencing (4D), cost (5D) and project lifecycle information (6D). This is sometimes referred to as 'iBIM' (integrated BIM) and is intended to deliver better business outcomes.
See Level 3 BIM for more information.
Level 4 introduces the concepts of improved social outcomes and wellbeing.
 Related articles on Designing Buildings Wiki
- Asset information model.
- BIM execution plan.
- BIM for dummies - an interview.
- Construction Operations Building Information Exchange (COBie).
- CIC BIM Protocol.
- Common data environment.
- Data drops.
- Federated building information model.
- Government Construction Strategy.
- Industry Foundation Classes.
- Information manager.
- Level 2 BIM.
- Level 3 BIM.
- Level of detail.
- Open data.
- PAS 1192-2:2013.
- PAS 1192-3:2014.
- Project information model.
 External Links
- Video: BIM Maturity /// Easy as 123 (by The B1M)
Featured articles and news
Studio Libeskind reveal designs for a new skyscraper with a living facade in Toulouse.
A mega-dome, a cenotaph for Newton, a bubble over New York - some of the most famous projects that were never realised.
One of the oldest and finest examples of Byzantine and Islamic architecture, the Dome of the Rock.
Have a look at our article explaining thermal comfort in buildings.
BRE's ethical labour sourcing standard and how it could help tackle modern slavery in the construction industry.
BSRIA publish mechanical and electrical maintenance customer satisfaction key performance indicators.
Have a look at our article on the history, practice and techniques of placemaking.
Have a look at the key recommendations from ICE's new report on the digital transformation of infrastructure.
The Gate of Europe, the world's first inclining high-rises, with a lean of 15-degrees.
Why engineers need to keep pace with the challenges and opportunities of the digital transformation of the infrastructure sector.
Have a read of our introductory article on fabric structures; their history, properties and characteristics, and more...