Visited the place 2 times on open day : 

https://www.openstreetmap.org/way/243559764 is the main area for temples. 243559701 has proably too but not the bigest ones

There is in fact many temples and they are not attached in any "loges" (even they use mostly the same for weekly/monthly use).

There is also many many other "loges" : https://kbopub.economie.fgov.be/kbopub/zoekadresform.html?postcod1=1000&postgemeente1=&straatgemeente1=RUE+DE+LAEKEN&huisnummer=79&filterEnkelActieve=true&_filterEnkelActieve=on&actionLU=Rechercher 

Les Amis philanthropes is just one of them. 

I also think that amenity 	community_centre is not really adequate here as it's not open to the public , and there is some rules and procedure to be admited.