[Anyone know what the time lag is between filming and airing these sort of
programmes ? Whenever I watch one of the relocation ones, I am bewildered
by the prices which sometimes seem to be so low as to be unreal at times.]

Yeah, this particular episode started in 1875 because the design was
intended to appeal to factory workers who wanted to take their boots
off in the parlour after a hard 15-hour shift on the looms - and it
ended in 2095 when it was put on the market for the standard factory
worker wage of £108,000.