Moving to Switzerland and question on furniture (Zurich)

Hello everyone,

I am moving to Basel in late July and will spend 3 months at a temporary apt and then I have to find a permanent apt to move in.

I am thinking of living in Zurich and commute to Basel.

I googled a lot and visited some other forum sites but wasn't clear about closet space in a 1 bedroom apt.

I'd like to have built-in closet but is it not common in apt in Zurich?

I live in a place that have built-in closet so I don't own any drawers/wardrobes for my clothes but if apt in CH doesn't have a closet, I was wondering if I need to buy furniture and move there (my company will move everything for me)

If not, is it allowed to put some bars/shelves on the wall? (I heard lots of strict rules at apt in CH)

Is Queen size bed too big for most apt in CH?

Thanks a lot in advance for your help!!

hue