Lot of money for effectively Slough haven't looked on street view but if all the other houses on the "exclusive cul de sac" are still unremodelled 70's houses then it is potentially a bad buy - there has not been 400k spent on it. Search a few miles away - Gerrards Cross, Beaconsfield, Chalfont St Giles, Jordans, Seer Green much nicer and more upmarket area £1.2m would be a wise investment. Better schools (private and state) and better transport J2 M40 & M25 and 22 mins train to Marylebone on the civilised Chiltern line