Grand Designs - Season 22 (2021)

Kevin McCloud meets widowed teacher Gretta, who is making a fresh start in rural Cambridgeshire with a Malaysian-inspired burnt wood and glass home being designed by her nephew Carlos and project managed by her brother-in-law Fernando - despite his lack of building experience. However, as site clearance begins, so does the Covid-19 pandemic - and family harmony is tested when an apple tree much loved by Fernando is condemned for removal by Gretta.

Kevin McCloud meets architectural designer Dan and interior designer Nina, who want to build a sleek, unique family house. But the plot they have bought, near a beautiful estuary in West Sussex, is dominated by a swampy pond that they are unable to fill in. Instead, they plan to make it central to their design, turning the pond into a biodiverse waterscape, and then floating their house above it. It's a challenge for anyone - but to save money, Dan is doing it largely himself, despite his limited experience with new builds.

Kevin McCloud meets Cumbrian couple Rob and Ruth, who have bought a 200-year-old former blacking mill and plan to slot in an entirely new, timber-clad structure within its walls, giving the impression that it is peeping out from the original ruins. But the original building is a scheduled monument and Historic England inform them it is too dangerous to repair, giving them no choice but to painstakingly rebuild the ancient mill around their new structure.

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