Adam,
It's been lit a few months ago. Below are the books I'm reading/referencing right now. They are quite fascinating. Now only if my wife shared the same view :U
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The Australian home /
Caring for old houses /
The complete Australian old house catalogue : where to get absolutely everything to restore an old building /
How to restore the old Aussie house /
Restoring old houses : a guide to authentic restoration
Victorian Gothic house style /
Victorian heritage : ornamental cast iron in architecture /
The Victorian Society book of the Victorian house /
The architecture of East Australia : an architectural history in 432 individual presentations /
Australia's home : its origins, builders and occupiers /