Key legal question
Whether preliminary decisions that are not binding on third parties are admissible for appeal when they concern non-spatial-planning provisions such as structural safety, traffic safety, fire protection, hygiene, and internal room access.
Extracted holding
Such preliminary decisions are admissible and therefore challengeable by way of appeal when they concern provisions without a spatial-planning function.
Extracted reasoning
The court distinguished between provisions with a spatial-planning function and purely technical norms. Non-binding preliminary decisions on technical requirements do not fall under the restriction and may be appealed.