So, new office had structured cabling.
When the old people (now the landlord still) moved out, they had workmen tidy up and decorate and so on.
The workmen did chat to us, and at one point asked what to do about all the cables. We agreed putting them up above the tiles out of the way was sensible as it looks tidy and people can pull them back down to use them.
Later we decided to lease the place and the landlord said the workman had put the cables up above the tiles out of the way so we could use them if we wanted.
The joys of moving in to a new office.