There used to be (early 1970's) clear evidence of some damage to one of the many pairs of semi-detached houses in Foresters Drive just south of Waterers Rise on the north western corner of the field. The southern half of the semi had teh original hipped roof; the northern (damaged) half had a repaired roof but with a gable end. Obviously a cheaper repair at the time when materials were scarce.
Last time I was over that way I noticed that both roofs were now the same - pity.
I'm sure "Treaders" will be on here soon giving us the benefit of his more detailed local knowledge.