Check ref: RM 2013 data suggests this should be BA11 6D (see note for date of most recent check that confirmed the apparently erroneous BA11 16D)
note
Is behind a hedge, looks like it's in the garden, but small gate to provide access from the drive (to right/NE). I note label on the postbox (BA11 16D, dated 12/10/22) differs from number mentioned in Survey Me! data from Royal Mail (BA11 6).