# IfcRelReferencedInSpatialStructure issue

**URL:** https://forums.buildingsmart.org/t/ifcrelreferencedinspatialstructure-issue/2555
**Category:** Developers
**Created:** [April 1, 2020, 7:40am UTC](https://forums.buildingsmart.org/t/ifcrelreferencedinspatialstructure-issue/2555 "2020-04-01T07:40:49Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![hannu.lahtela](https://avatars.discourse-cdn.com/v4/letter/h/74df32/32.png) [@hannu.lahtela](https://forums.buildingsmart.org/u/hannu.lahtela)
#### Post date: [April 1, 2020, 7:40am UTC](https://forums.buildingsmart.org/t/ifcrelreferencedinspatialstructure-issue/2555/1 "2020-04-01T07:40:49Z")

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How to bundle spaces to IfcSpatialZone ? The doc says -

> > …Also spaces, that referenced by this spatial zone are related using the  
> > _IfcRelReferencedInSpatialStructure_ relationship.

The problem is that IfcRelReferencedInSpatialStructure is excluded from the IFC4::RV1.2 official schema.