Watch Grand Designs season 2 episode 16 online for free. Kevin McCloud returns for a second visit to The Water Tower. As one of Grand Design’s first projects, Andrew Tate and Deborah Mills found a site with a monstrous, dilapidated, 100 foot tall water tower on it. Unusually, they saw it as the perfect spot to build a contemporary family home and convert the old water tower into a seven-storey bedroom wing. Andrew is a commercial architect and so the modern new build went up in just four months, using fast-track methods alongside unconventional building materials. Kevin went back to see Andrew and Deborah three years after they had moved into their contemporary extension, but they had still made no progress on the water tower, and were living with minimal bedroom space.