Up for the nineteen seventies, most residences have been of "double brick" design on concrete footings, with timber flooring laid on joists supported by "dwarf partitions". Afterwards residences have primarily been of "brick veneer" building – structural timber or, more lately, lightweight steel frame on a concrete slab Basis, lined https://www.evernote.com/shard/s502/sh/52eaa3cf-20a7-9753-cba9-1817351b6e94/10SMXmzB8uV3CgDq4MxqWAtNUB8epmZsKGnZknPbf5Td217wr77dLV8rNQ