Contractor David Booth introduces us to a ""rag and bone"" man who collects scrap from building sites with his cart and horse. David explains the elaborate scaffolding job and then takes us up to the flat, where the roof is off and bricklayers are extending the mansard sides. Our master carpenter arrives to give the British crew a lesson on pneumatic nailing, and he and David go off to The Building Centre, a showroom of building supplies and design ideas. At the flat, architect Trevor Clapp and homeowner Carla discuss the evolution of the flat's floorplan. Finally, our host and homeowner Jeremy tour a kitchen design shop.