(1) (a) Who authorised the decision to spend the specified amounts on the renovation of the residences specified in his reply to question 2630 on 14 December 2012 and (b) what are the full details of the (i) renovations and (ii) improvements of each specified property; (2) whether any of the properties have been declared heritage sites; if not, what is the position in this regard; if so, which properties?