Former nurse Dawn dreamed of a relaxing home for her retirement, but an impulse buy has left her with a tiny, 150-year-old cottage that needs some clever solutions to open up space. Angela and Dale's disastrous extension has blighted their lives for nearly a decade, and with only £5k for the remodel, the challenge is on for Piers to bring their home up to scratch.

Sue moved into a dark, 1920s semi in Kent with big ideas to reconfigure the entire house as she is keen to make a fresh start after a traumatic divorce. Kath and Greg's family home in Shrewsbury is stuck in the 1970s, with an impractical and even dangerous kitchen. As the true cost of updating the kitchen sinks in, the family has to roll up their sleeves to tackle bigger problems.

Abigail and Christian's house is in an idyllic location, but is dark, dingy and unsuitable for family life - it is up to Kieran and Piers to search for a bold architectural solution within their tight budget. Madelaine inherited her parents' 1960s home and wants to bring the house up to date, but worries about ripping out a lifetime of memories along the way.

Ronnie and Nicky want to turn their dark and badly planned bungalow into a dream family home. Piers challenges them to rip up their current plans and be more ambitious, while Kieran pushes them to stop shopping and start designing. Meanwhile, Nigel in Gloucestershire has DIY experience but no idea what to do. With just £7,000 available, Piers must help them spend it in the right places.

Mikyla lived as a single mum of two in her Victorian terrace house, but now that her fiance has moved in they are bursting at the seams. It is up to Kieran and Piers to inspire them and help decide how and where to spend their budget. Full of design ambitions, charity worker Rita has managed to scrape together £3,000, but that is all she has for an entirely new kitchen.

Ben and Mita fell in love with their warehouse apartment's location and lofty style, but two children later they've run out of space, can't afford to move and are at a loss as to what to do. Graham wants his partner Gabrielle to move in, but his bathroom is outdated and the kitchen is the last place they'd want to enjoy a romantic meal, and he has just £10k to fix both problems.