The Shariah Status of Praying in a Shared Building

The ruling on Muslims and non-Muslims worshipping in a shared place
If Muslims are able to designate a place specifically for building a mosque and it is not in a shared building with followers of other religions, then it is obligatory for them to do so. Otherwise, they should worship Allah in whichever place is possible for them, even if they and the followers of other religions are under the same roof, whether the place is designated or not, because Allah Almighty says:
«فَاتَّقُوا اللَّهَ مَا اسْتَطَعْتُمْ»

“So fear Allah as much as you are able.”