I can see where a terrace or balcony wouldn't be allowed, but couldn't you set up something like this in a parking area (away from cars, of course) ? https://www.amazon.com/Masterbuilt-MB20030819-Portable-Propane-Stainless/dp/B09GC6CD1X/ It would take some planning and lugging stuff around, but there's nothing like a burger fresh off the grill.