Kevin McCloud follows the progress of engineer Richard Bennett and his partner Felicia Böhm as they transform an underground water reservoir near the Humber Estuary into a family home. In 2013, the pair decided to embark on the ambitious build with a budget of only £150,000, but it proved a monumental challenge, and design and layout decisions stretched their abilities and the schedule to the max.

Grand Designs Season 20 Episodes...

• s20e01 - Galloway: Cliff-Top House
• s20e02 - Lincolnshire: Cylinder Home
• s20e03 - Warwickshire: Wheelchair-Friendly House
• s20e04 - Hull: Underground Family House
• s20e05 - Suffolk: Tree House
• s20e06 - North Devon: Lighthouse
• s20e07 - Strathaven: Airfield Revisited

Grand Designs Show Summary

Grand Designs is a Channel 4 TV series covering unusual architectural house-building projects, presented by Kevin McCloud.

The properties featured in the series vary wildly from homes underground to converted water towers, with the only common factor being that they're all rather unusual or extravagant in some way.