Why do I sense so much animosity towards 4Sbuyer’s suggestion that those homes have been built better for fire resistance? Anyone who knows about commercial buildings is aware of all those techniques – avoid using combustible building materials, install sprinkler system, better fire/smoke/heat alarm than the home depot kind etc., It makes no sense at all that people buy million $ homes without basic fire resistance that would cost at most 10% more if designed and built right at the time of construction. Using steel & concrete framing would hardly cost anymore than wood framing and that itself would keep a home from collapsing with the first embers.