I looked at LA late last year because business was seeing me spend so much time in the Americas I considered a move there. Overall I found LA property to be slightly more expensive than Sydney. The places in the US that are cheap are places you wouldn't want to live. Kansas anyone?
I'm not saying property isn't expensive, but this is a global phenomenon of global cities having inflated property. It's not just Australia.
Oh of course, global cities will be more expensive because more people want to live and work there.
However, the medium house price in LA is about $529,00, compare to Sydney its well over $800,000. Prob closer to $900,000 now once the new stats are out.
http://www.trulia.com/home_prices/California/Los_Angeles-heat_map/
http://www.zillow.com/los-angeles-ca/home-values/
Now of course if you want to live on Mullholland Drive, Bel Air or by the coast around Malibu then it will be more expensive. There will always be more expensive places in cities.
However, the madness seems to have spread to average homes in average estates. I saw the very same thing in Dublin when I was working and living in Ireland. Average homes in average estates were going for a fortune, for no other reason other then cheap credit and someone who had access to cheap credit would buy it. The crash in 2007/2008 has cut more than 50% of the price of property in Dublin to this day. Dublin is not London or LA but it is the European Silicon Valley in many ways and also a european capital. A 2nd tier city so to speak.
Once the cheap credit tap is turned off either by the RBA or cashed up Chinese, then havoc will reign in the Sydney property market. I just find is strange that intelligent people who are financially literate get sucked into this as well saying this is all 'normal' behaviour. We know through histories how bubbles develop and burst. It is the reason to this day why I will not buy any Australian Bank share. All those SMSF will be sorry in years to come to see their life savings take a hammering. Think it can't happen. Ireland today has NO private bank, all of the nationalised or part nationalised. In the mid 2000's they were the kings on the hill.
I suppose I see it differently, where I lived through the mania and saw a bubble burst at first hand. I see the same things going on here. Some differences may I add, like the influx of cashed up foreigners. The crash will have a different flavour and smell but it will leave the place bloodied and will destroy many a life and savings.