Watch Grand Designs season 6 episode 4 online. For six years Bruno and Denise Del Tufo stared at the large concrete water tower at the bottom of their garden trying to figure out what to do with it. It’s a very rare object – a square water tower on stilts designed by architect Edwin Lutyens, who built it to supply the manor house nearby. It’s not exactly beautiful but Bruno and Denise feel very protective towards it. When they sold their house, they were worried that someone might knock the tower down, so they decided to try and find a way to live in this huge, concrete monster.