You can, of course, now visit Mendips, and note for yourself the notably mock-Tudor view from John's old bedroom. One bit that remains off-limits (at least as far as an unaccompanied "shufti" goes), however, is the back garden. Above, a photo from circa 1979, showing the big tree there, upon which John once did squat, apparently.
From a slightly different angle, the same location these days:
The garden doesn't look much like it did back in the Mimi-era apparently (again), though there are currently attempts to put that right. I hope that a proper stroll round it is incorporated into the tour once that has been completed. Incidentally, a trip to the auld hoose is highly recommended, if you haven't already done so (and even if you have).
The tour, though a little on the short side, is excellent, and, best of all, you are given a few minutes at the end to wander round the house at will; John would, apparently (yet again), be very careful when going up the stairs at night, generally having come in a bit the worse for wear, not to wake Mimi by treading on those floorboards of a squeaky disposition: noting which these are, or humming a few bars of Slayer in the front porch provide considerable amusement.