In this very large examination of 41,717 homes exposed to wildfire from 2013 to 2018 in California, 37,838 homes were destroyed while 3,879 survived.  With numbers that large and a time period that long, researchers using strict scientific processes can reliably nail down what factors about a property contributed to a home's loss and what factors contributed to a home's survival.

The structural variables that increased chances of property loss were:

• being a mobile home
• presence of accessory/utility outbuildings
• sloped properties, and more

Structural variables that contributed to survival were:

• construction after California's 2008 fire-safe building code was passed
• presence of multi-pane windows
• enclosed eaves
• ignition resistant siding, and more

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