Well either house could be from areas as diverse as Melbourne upper class area, to Bendigo or even Ballarat through to areas in Sydney as in Homebush Bay, Mid North Shore Chatswood area, or even Ashfield. I used to work, it would now seem in an another era, renovating 19th century homes. But there are many, many more areas where either type of construction could appear. Both are on larger than normal allotments 1/2 acre and up so it really throws up too many possibilities.
As for the designs both are mid to late 1800's. Australia probably has the most eclectic range of house designs of any country on earth. The diverse range of settlers from all round the world along with the variation in incomes and work had given rise to really the strangest group of homes anywhere. I have seen homes just like these from as far afield as Toowoomba in Queensland to Philip Island in Victoria and too many places in between. Country NSW is dotted with them as well as many banks built similar for managers attached to the bank. We can only see a two dimensional image of both homes, admittedly photo's are normally street view. The brickwork, Ironwork, windows, dormers spell only one thing to me. Australian Colonial. The only thing I should say is, there is NO Sandstone. That makes it hard to put either in Sydney area, but not impossible.
I never get tired of looking at homes of this era as it would seem no two are alike?
Neil