ok... here's a layout of an old quantock (and presumably conygre, durhill and cotswald) house:
(nb quantock has now changed)
the floors are split in staggered layers... with front on the left in this:
17,18,19...............
............16, kitchen
13,14,15..............
............12, small kitchen, 11
8,9,10.................
............6(studio),7
3,4,5..................
............2,1
kitchen...............
Hope that makes sense. Looking at the front of the building the rooms are numbered left to right on that diagram (back rooms are numbered right to left).
Rooms are similar size but back rooms have the door in the middle of a long side wall, while front rooms have the door at the opposite end to the window.
In quantock the middle kitchen (and possibly one or more rooms) have been removed to fit bathrooms. If rooms have been removed then the numbers have probably changed too.
Hope this helps