Plot: Kevin McCloud, Damion Burrows and Michelle Ogundehin visit five properties that solve problems, including a modernist riverside house designed to withstand extreme floods, a modular timber home that elegantly resolves the challenges of building in a remote environment and a house that deploys discreet camouflage to blend into its overlooked setting. The others are a pared-back barn conversion that neatly sidesteps the pitfalls of restoring agricultural buildings and a Japanese-inspired house that proves a standard budget need not be an obstacle to building a bespoke home