Tony Wrench covers the process of visualising and designing a roundhouse through to the practical side of lifting the living roof, infilling the walls, laying out rooms and adding renewable, autonomous technology.

He offers advice on roofs, floors, walls, compost toilets, wood stoves, kitchens, windows and planning permissions.

There are photographs of the dwelling and illustrations from the construction plans for this, one of the UK's most unique homes. Includes updates which bring the building and planning stories up to date.

Updated fourth edition.