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200 yards, turn right onto East Mariposa Street.
We're driving into Altadena.
The streets are lined by glorious trees,
and behind those trees, set behind them, are houses of any number of different styles.
How can a city recover from an almost unimaginable disaster?
I'm Jonathan Glancy, and you're listening to LA Rising from the Ashes.
In this episode of the documentary from the BBC World Service,
I'm driving through a beautiful neighbourhood in the north-east of Los Angeles.
Picture peaceful suburban streets rising up to wild mountains behind.
But the beauty and peace here is deceptive.
Then suddenly, as you drive along...