When I worked at LHR we used to have a lot of guys who would commute from Somerset, Manchester etc. They all stayed in B&B's during their working week and commuted home for days off.
However some of them on their first day would have their alarms going off at 2.30am to make a 5.30am report, do a 12 hour duty day and then nightstop.
In an accident enquiry house prices would not be deemed a mitigating factor.