It's amusing to me that the occasional burning of these large neolithic settlements and rebuilding on the same footprint seems to mystify some -- the place was build out of flammable materials, and didn't use chimneys...
There might have even been the occasional purposeful burning to remedy “sick village syndrome”.
Move everyone out to temp housing during good weather, burn the settlement and kill off most of the pest infestations, rebuild and move back in before the weather turned harsh.
And the buildings in that period were fairly simple constructions so harvest wouldn’t much interfere with the process.