Re: BT are the problem here
I don't blame the freeholder for that. With a previous work hat on, I managed a campus network on a science park. One time I went up, and the university (who also had a presence) had had a new service installed by BT - to say I was "unimpressed" would be an understatement. Had I been there when the work was done, I'd have given the people responsible a bit of a grilling.
They'd had to drill through a concrete slab floor above the services room - and right above the comms cabinets. Everything was covered in a thick layer of concrete dust - and presumably the insides of the UPS was as well (since that was fan cooled). And for good measure, the top covers of two cabinets were stoved in from not being designed to support some gorilla standing on it.
In the small block of flats I have a rental in, they've ignored the services closet, and just strung multiple fibres, using multiple CSPs, around the front of the building.