Earlier quoted context omitted.
Visual distraction is very real when trying to focus.
Visual distraction is the second worst, IMO, with noise in third. Number 1 is vibration and physical movement. I've had a desk environment where two folks would be sitting on opposite sides of a wide table, so there's one shared and non-isolated surface that both people work on. Every time my coworker would stand up, they'd brace themselves on the desk and shake the shit out of it, and I never learned to filter it ou…
Then of course some PM would swing by and talk to him about stocks or something silly. The PM didn't have anything better to do.
We were also right by the break room, so people would constantly be chatting.
I think you should just put developers and only developers on a floor. Everyone else who needs to chit chat and only has to attend meetings can go on another floor.