. . . colonising the drive and extending downwards as well as upwards

I wonder if anyone consulted the current occupants of No 39 Gloucester Avenue (where, as I said before, Roy Guest used to live)? This sounds very disruptive and obtrusive unless, as I also said before, No 39 is acquired as well.

Retail outlet, recording studio, rehearsal rooms

These being other suggested used for space occupied by VWML (which really isn't very much at all). There used to be a shop in the entrance hall, now taken up by a useless reception desk and a coffee table. Storrow can be (as was for years) used as a recording studio and Trefusis was used as a rehearsal space by TV production companies and the like.