When Heather Brown's parents decided to say good-bye to their hot tub, she and her husband Tim inherited it. However, that little windfall has snowballed into a backyard renovation that's bound to cost the Browns a whole lot of money. The plan includes a two-tier cedar deck built around the hot tub with an adjoining circular patio and firepit. Tim has experience deck building, which is another plus. However, designing around a hot tub could put a kink in the numbers and that could mean disaster for any equity building plans.