When did Grand Designs Season 21 Episode 4 air?
Grand Designs Season 21 Episode 4 aired on January 27, 2021.
Grand Designs
British television series which features unusual and often elaborate architectural homebuilding projects.
Season 21 · Episode 4
Bletchley: Self-Heating House
Jan 27, 2021·45m
Energy conservationist Andrew plans to build a radical, self-heating home by storing the warmth of the summer sun into insulated earth banks. But will this gigantic thermal experiment work?
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How long is Grand Designs Season 21 Episode 4?
This episode runs for approximately 45 minutes.
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