FreeCAD BIM Workbench is a free and open-source BIM/CAD modelling environment that supports architectural and engineering design workflows. It can be used for retrofit planning by modelling existing buildings, testing renovation design options, preparing 2D/3D project information, and supporting openBIM/IFC-based coordination. In EXEL4Housing 4.0, the tool is relevant to the Planning and Design stage because it supports digital project development, design creativity and modelling for housing retrofit scenarios. Its open-source nature makes it suitable for training, experimentation and practical application without licence barriers.
Keywords
Main theme addressed by the tool
Digitalization; Circular economy
Objectives
To support early retrofit decisions by allowing users to visualise existing housing conditions, develop alternative renovation layouts, and organise design information in a flexible 3D environment. The tool helps compare design options before implementation and supports collaborative digital workflows using open formats.
Target audience
Architects; designers; BIM modellers; retrofit planners; engineers; construction project teams; researchers; trainers; students.
Benefits
FreeCAD BIM Workbench allows users to develop retrofit design options without licence costs, making it suitable for both training and practical use. It supports flexible 3D modelling, parametric design changes, visual comparison of renovation alternatives, and preparation of basic project information for coordination. Users can expect a more accessible way to explore housing retrofit ideas, document existing and proposed conditions, and support open digital workflows through formats such as IFC.
Data requirements
Existing building information such as plans, dimensions, photos or survey data; renovation objectives; basic space layout and building elements; and any available material or component information. Previous knowledge of CAD/BIM modelling and project documentation is useful.
Learning Profiles addressed
- BIM for Energy & Lifecycle Specialist
- Circular Construction & Resource Recovery Specialist
- Sustainable Construction Project Manager
Examples of application
How to use the tool – Tutorials
FreeCAD Manual PDF
Learning materials
FreeCAD BIM Workbench YouTube playlist: video tutorials on BIM modelling workflows in FreeCAD. Link: https://www.youtube.com/playlist?list=PL1Fv0Kg44dc34hTuLcOBTNm4OaR4Xz93m
https://www.youtube.com/playlist?list=PL1Fv0Kg44dc34hTuLcOBTNm4OaR4Xz93m&utm_source=chatgpt.com
Language
Multilingual
Cost
Free
Other information
Useful when combined with existing building surveys, photos, CAD drawings or IFC files. Additional plugins/workbenches may be needed for advanced BIM workflows, and users should check IFC exchange quality before using models for coordination.
