It would depend a lot on vegetation. If there was a stone fence. Most of the heat is due to radiation and that radiation adds up. So a fence can absorb a lot of the radiant heat .. or brick. As long as the brick doesn't get too hot to conduct enough heat to start a fire on things that touch it. If the grass was well mowed. It would also depend on how the building nearby burned.
People will be paying more and more attention to this.
I hear so much talk about reservoirs being empty but when a house burns down the pvc piping is going away and there would he infinite leaks causing a catastrophic failure in the water system. Or at least that is what I would think.