Here is my bet for LA. Their communist Mayor (she went to Cuba under Fidel Castro to learn how to bomb places) wants affordable housing. Talks about it obsessively. Leaves the Country for an alibi. And the reason for the housing crisis, it's a sanctuary state. If it wasn't, there would be a housing glut.

Lots of people are under and uninsured due to the State Insurance commissioner and Democrat rule saying insurance companies could not pass on the cost of doing business (i.e. reinsurance costs).

Minimal clearing of underbrush, draining and apparently not repairing a reservoir, not putting backup generators on water pumps even though this was a problem before. 

Delaying clean up by not allowing folks the ability to remove debris, draining their resources. Developers come in and buy up land and now the planning commission can change zoning for high density dwellings in these destroyed neighborhoods. Neighborhoods have already fought this fight. Hope they don't have to fight it again.