10 episodes
First episode: E1

Renowned Australian architect Peter Maddison follows people as they attempt to build their own custom dream home. In each episode, Peter presents the authentic journey and challenges behind building these homes -- many of which are architectural feats.
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10 episodes
First episode: E1Quick answers about this series, release status, and episode totals.
Grand Designs: Unbelievable Builds first aired on September 14, 2020.
Grand Designs: Unbelievable Builds currently has 1 season and 10 episodes.
Grand Designs: Unbelievable Builds is ended, and no upcoming episode is currently scheduled.