DIY SOS: Temporada 27, Episódio 4

27 - 4: The Big Build - Derby

Rachel and Andy Smith's middle child Isaac has spastic quadriplegia, a severe form of cerebral palsy and Andy or Rachel must be available at all times to care for him because he sleeps fitfully in a hospital bed in the family living room. It's making family life stressful including for Isaac's siblings as the design of their home is in conflict with what this family really need.

The DIY SOS team and hundreds of volunteers turn the Smiths' lives around by building an amazing extension and a beautifully landscaped garden.