Autodesk / Autodesk/revit-ifc

PR: Pset_SpaceOccupancyRequirements - OccupancyNumberPeak not exported in IFC4

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#895 4 comments 0 reactions 0 assignees View on GitHub
problem
Dominant language
C#
Stars
637
Forks
225
PR merge metrics
No merged PRs in 30d

Description

### Problem Description

Hi everyone!
I am unable to export the Ifc property OccupancyNumberPeak when using IFC4 Reference View. I don't have any problems when exporting to IFC2x3 Coordination View 2.0.
I didn't test any other property belonging to Pset_SpaceOccupancyRequirements, so I am unable to tell if this property specific or the whole Pset is not exported.
This was tested with Revit 2024 and 2025 with the same results

Thank you in advance

### Revit Version

2025.4.x

### IFC for Revit Addon Version

25.4.0

### Windows Version

10 22H2

Contributor guide

Open the contributing guide

Research direction

No source file or test is named. First reproduce the IFC4 Reference View export with Revit 2024 or 2025 and inspect how Pset_SpaceOccupancyRequirements and OccupancyNumberPeak are handled, comparing the result with IFC2x3 Coordination View 2.0. Done means the property is exported correctly in IFC4 without regressing the IFC2x3 result.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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