Open BIM Program

OPEN BIM is a progressive, future-proof approach to AEC collaboration. It helps connect stakeholders such as software vendors, software users (architects, engineers and builders) as well as clients/owners to co-create great buildings. OPEN BIM is the only data management method that ensures long term data sovereignty for builders and operators.

OPEN BIM is based upon open standards such as IFC from buildingSMART. ALLPLAN and the Nemetschek Group fully support buildingSMART’s openBIM program. We are also fully dedicated to the high quality standards defined by our OPEN BIM Charter and represented by our OPEN BIM logo.

We believe...

  • Interoperability between project stakeholders must not be used as grounds for competition.

  • Free choice of software in project work must be a basic right for any project stakeholder.

  • Proprietary format mandates must not be used to exclude candidates from project work.

  • Interoperability should be facilitated via development and support of open standards.

  • Rigorous testing and certification criteria is a must for quality support of open standards.

  • Industry stakeholders must publicly endorse and promote OPEN BIM in the AEC/O community.


Comprehensive web-based coordination

Project: Cantonal Hospital St. Gallen, Allplan Bimplus

The Cantonal Hospital St. Gallen is being expanded. This affects several buildings. The entire project has a total construction cost of 587 million Swiss francs. The expansion will be built in two different planning and construction phases.

The challenge:

“We did not have a contractual requirement from the client to plan this project with BIM,” says Andreas Haffter, project manager and BIM manager of WaltGalmarini AG, “but due to the size and complexity of the project, this was obvious to us; also because quality assurance was important to us and we wanted to document the model comparisons.”

The solution:

WaltGalmarini AG gained its first experience of using this openBIM solution with the “Haus 10” at the Cantonal Hospital of St. Gallen. “We executed the tasks, made cuts, wrote comments and the tree structure within the individual models and building structure was helpful for us. We were thus able to...


The advantages of BIM

High-rise Giessen Tower, Dübendorf (ZH), Switzerland

The city of Dübendorf, located on the eastern edge of Zurich, plans to develop sustainably in the coming years. New districts will emerge, centers will be enhanced and new living space will be created. The approximately 85-meter-high Giessen Tower will be a future landmark in the region.

The challenge:

"Due to the different Allplan 3D Model mix of apartments and the offset angle of the high-rise structure, neither the structural nor the building service requirements are routine and the complex exterior also required intricate planning", says Bim Manager Matthias Moog. According to him, it would not have been possible to plan the facade other than in 3D.

The solution:

All areas and quantities can be determined simply and efficiently thanks to the 3D model. The cut and fill can also be determined from stored component- related information, called attributes. This is useful when determining the costs. Thanks to BIM, we can achieve a very high level of cost accuracy, which we ...


Bespoke and innovative Building

Project: ristav CUBE, Karlsruhe area, Germany

The construction project “ristav CUBE” is a classic example of a project with customer-specific features. Construction began in 2017 and the planned completion date is summer 2018. ristav GmbH is a medium-sized company from the Karlsruhe area, which has a plot in the newly developed Karlsruhe industrial park, Kirchfeld-Nord. They were planning the new office and residential building here and commissioned the Vollack Group to design it. ...

The challenge:

The first challenge was to create space for the files as well as sufficient office space. Secondly, the focus of the development process was about optimizing the working environment, by linking work processes and creating short travel distances within the building. In addition, the project’s energy goals and the pre-defined working method Building Information Modeling (BIM) played a major role for Vollack. ...

The solution:

To be able to take such aspects into consideration in detail, the architects and engineers at Vollack use the software from ALLPLAN during the design phase, and in certain cases, even adapt it for individual needs. 3D models are created at Vollack with Allplan using their own CAD component library and are enhanced with smart data. ...




ALLPLAN, GRAPHISOFT®, Tekla® and other members of the buildingSMART® alliance launched a global program to promote OPEN BIM in the AEC industry. The OPEN BIM community is constantly growing. Here, you will find a list of the major partners of OPEN BIM. To enjoy all these benefits, you are most welcome to join the OPEN BIM community today!