Grand Designs: The Streets Season 4 is yet to be announced by Channel 4

Kevin McCloud follows the progress of Army couple Leah and Craig, whose lives have been dictated by the military. They have designed a contemporary, timber-clad kit house where they can escape from the beige of the barracks. Kevin also meets Jitinder, who works as a consultant helping businesses operate more efficiently - skills he is using in the process of building his own Hollywood Hills-style bachelor pad.

The property show follows animator Joanna and carpenter Ben, who are building a magnificent American ranch-style house in a gritty part of Glasgow. Like the buildings of the Wild West which inspires them, the couple's house will be made from simple materials with a structural Douglas fir frame and clad entirely in larch with a rustic tin roof. But with a tight budget of £170,000, Joanna and Ben can only afford it if they construct it themselves. The trouble is, they have never built a house before.

Kevin McCloud follows John and Julia, who are realising their 30-year dream of building an amazing house designed by architect John after years of bad luck. They have secured a plot at Graven Hill in Oxfordshire and John has designed a modernist wedge of a home for them to retire to. But as soon as they start, their run of bad luck continues - the lockdown brings construction to a halt and every month in their expensive rented house eats away at their budget - in turn threatening their vision for a comfortable retirement.

Kevin McCloud follows more couples building their own homes in Graven Hill, Oxfordshire. Vineet and Simmi have engaged a friend from the community to construct their new home, blurring the line between friendship and business - and things become even trickier when Vineet changes his mind about the layout mid-project. Prabhjot and Shalini's new-build is a super-quick kit house which should go up in a matter of weeks. But with such a close community, their home will need to take their friends' tastes into account as well as their own.

Kevin McCloud returns to Graven Hill in Oxfordshire, the UK's largest mass self-build site, to witness the trials, setbacks and successes of those who are designing and building their own, highly individual homes. First up are Carlos and Maite, who have ambitious plans to build a bold, Spanish-inspired home. But Maite does not just want to live in it, she is also designing it - without any professional qualifications. Meanwhile, co-presenter Natalie Huq follows the birth of a new street in Glasgow, where the local council have given six families an opportunity to construct their own homes on a small plot - beginning with an American-style ranch.

Kevin McCloud follows the last of the self-build projects, as married couple Pauline and Godfrey seek to downsize to a modular, factory-built home that is erected in just two weeks.

A couple of engineers plan an upside-down house. Garrie is building the largest project on the street. The stakes are high though as his wife Sue has health issues.

A pair of 20somethings take a risk building their first home together using an untested method. And a father and son hope to bond building a family home with space for all.

Paul and Blanka hope to build an ambitious and cheap eco-home. But the project costs the family more than they bargained for - not just financially.

In Oxfordshire, two couples make their own homes, getting on the property ladder as part of Britain's biggest self-build project. The effort pushes one pair close to breaking point.

Terry and Olwen, and their neighbour Lynn - all three of retirement age and the most senior builders on the street - set out to create two unique, bespoke new homes.