The consultation document on the proposed extended areas seems to suggest that the Council can impose changes retrospectively, ie to make people replace upvc windows with replicas of the original sashes etc. The thing is, can they do this legitimately given that at the time this work was done there was no issue of non compliance? Whilst it would improve the character of the area this may cost a great deal of money especially if people bought the properties after the work was done. What protections or recourse would they have in this case.?