On the tax bands thing, I searched mine on the gov website. We are in a semi, and there is two pairs of these semis (4 houses total, on our road 1 to 4). Houses 1 and 3 are band E, and 2 and 4 are band D. They are identical, no idea how that was calculated. Thankfully I'm in an even numbered semi, but I'm sure my neighbours will be really annoyed.