hi, we are working on building a caravan act compliant home in my inlaws garden! since lockdown we want to simplify our lives and build something fairly inexpensive and get our living expenses as low as possible so we dont have to kill ourselves to pay the mortgage! we currantly live in margate , we are awaiting a quote from a builder and have a quote from a company for basically a watertight box which we will then insulate and do the internals ourself... obviously our hope is the builder will b