Warning · Data quality
How to fix Space missing floor area
in IFC files
Add area quantities to IfcSpace — export BaseQuantities so each space carries NetFloorArea/GrossFloorArea.
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No account · No upload · Runs in your browser · 44 validation checks
What it means
The Space missing floor area check
IfcSpace has no NetFloorArea quantity — required for energy analysis and QS workflows
The fix
How to fix Space missing floor area in your authoring tool
Concrete, tool-specific steps. The check itself is schema-agnostic and works for IFC2x3, IFC4, IFC4x1 and IFC4x3.
| Authoring tool | How to fix |
|---|---|
| Revit | Rooms export as IfcSpace but quantities are missing. Enable “Export base quantities” (Pset/QTO) in the IFC export options and make sure Rooms are properly bounded/placed so areas compute. |
| ArchiCAD | Use Zones for spaces and enable Base Quantities in the IFC Translator so IfcSpace exports NetFloorArea/GrossFloorArea. |
| Tekla | Spaces are limited in Tekla; if required, define them and enable quantity export, or generate them in the architectural model. |
| Allplan | Create Rooms (spaces) and enable IFC quantity export so IfcSpace carries area quantities. |
How it works
Find and fix it in the browser
The whole flow runs client-side — your IFC file never leaves your machine.
01
Open your IFC file
Open IFC Viewer Online and drag & drop your IFC file. It is parsed locally in your browser via WebAssembly — nothing is uploaded.
02
Run the Health Score validation
Run validation. The "Space missing floor area" check (RULE_SPACE_AREA_MISSING) flags every affected element and pinpoints it in the model tree.
03
Re-validate
Re-export from your authoring tool and re-run validation to confirm the issue is resolved and your Health Score improved.
Related checks
Other Data quality checks →
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