Warning · Spatial structure
How to fix Missing building
in IFC files
Add a building to the spatial structure — define an IfcBuilding in the authoring tool’s project setup.
Check your IFC file — free
No account · No upload · Runs in your browser · 38 validation checks
What it means
The Missing building check
No IfcBuilding found under IfcSite
The fix
How to fix Missing building 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 | Revit creates the building automatically; a missing one usually means a site-only custom export. Verify the project has Levels and use the default building assignment in the IFC options. |
| ArchiCAD | Ensure a building exists in the project hierarchy / IFC Translator and that stories sit under it. |
| Tekla | Define the building in the IFC export spatial structure settings. |
| Allplan | Add a building node in the building structure palette. |
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 "Missing building" check (RULE_MISSING_BUILDING) flags every affected element and pinpoints it in the model tree.
03
Fix in Revit
Revit creates the building automatically; a missing one usually means a site-only custom export. Verify the project has Levels and use the default…
04
Fix in ArchiCAD
Ensure a building exists in the project hierarchy / IFC Translator and that stories sit under it.
05
Fix in Tekla
Define the building in the IFC export spatial structure settings.
06
Fix in Allplan
Add a building node in the building structure palette.
07
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 Spatial structure checks →
Check your whole model, not just one rule.
Missing building is 1 of 38 checks. Run the full IFC Health Score to see every issue and a single 0–100 number — free, no account, no upload.
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