Question on Company

The question of whether you pay business or houseold rates for utilities seems to vary from region to region. It used to be the case that businesses paid higher electricity prices but nowadays  for reasons discussed previously, business rates for electricity are now lower. The company can grant a person, including a director, a tenancy on the property, which legally makes it domestic consumption of water and electricity, if that's favourable in your area (unlikely as things stand).

The company owning a vehicle doesn't count as "activity" but if you have long-term residency you can buy one in your own name anyway.