Noise can be controlled. As I work for a French telco, I know it is one of the important parameters to manage when shoehorning an FTTH head-end in a residential building in a very dense neighborhood. Heat too ! It is routinely done, unless you want to cheap out and just drop a bare container on a concrete slab... Which would not surprise me much in a nation where utility poles are still considered adequate as city infrastructure (I remember the face of one of our American suppliers when he realized that we bury everything...)