Grand Designs: The Street | Series 3 Preview (Channel 4)

The innovation and architectural daring shown at the UK's largest mass self-build site at Graven Hill has captured the imagination of councils countrywide. Across the length and breadth of the British Isles, plucky self-builders have been given a once-in-a-lifetime chance to build their wildest imaginings.

In this third series, Kevin McCloud follows the development of some of these pioneering new projects, as well as revisiting previous ambitious self-builds in Graven Hill and Glasgow with co-presenter Natasha Huq.

Each case captures the spirit of community that these streets engender, and the determination, resilience and ambition of the builders. This week, two families from Yorkshire with two very different visions are taking the leap into the world of self-build.

Nicola is designing and project managing a traditional redbrick family home with a modern twist, but things start to go wrong when the centrepiece of her vision - a spectacular triangular window - arrives but does not fit. Down the road is Matt and Maryellen's exciting Brazilian-inspired home, with flamboyant colours, textures and a butterfly roof.

Steelworker Matt is keen to use the material he loves wherever he can, but Maryellen fears it will make the building feel industrial. They also have different ideas about what they want from the house: Matt wants a gothic black bathroom, while Maryellen favours glamorous white...

Grand Designs: The Street returns Tuesday 16th May at 9pm on Channel 4.