Mark Evans meets more people who aspire to live in their ultimate waterside dream home. Simon and Mary Sparrow live on a barge in Beccles, Suffolk, with their son Nate and their two cats. The Sparrows have been running a boatyard for nearly 10 years, specialising in refurbishing and renting out floating homes to holidaymakers. Now they're designing and building a new, one-of-a-kind floating home for themselves - a futuristic-looking floating pod, drawing on a budget of £70,000