Offer accepted 3 weeks ago. After a survey highlighted age of electrical systems we did an electrical survey today. The house would 'fail a landlord safety check' as it has no RCD. This can be remedied at a cost of approx 400-500 along with fuse board. Given the age of the property would you consider this something we should 'accept as part of buying an old house' or should we ask for an appropriate reduction to make it safe for a 4 year old that likes exploring?