Greg and Georgie plan to convert a cavernous, dilapidated, 35-year-old barn in Georgie's parents' garden in Kent into a peaceful safe haven. But costs start to spiral almost immediately. [AD,S]
Architect David Parsons has designed a sleek, black-clad house hidden away in an idyllic Essex woodland. But will having no windows on two sides make this dream home into a bunker? [AD,S]
In 2019, Greg and Georgie set out to transform an old barn in Georgie's parents' garden in Sevenoaks. But unexpected underpinning and the COVID pandemic had other ideas. Is it now complete? [AD,S]
Edward and Hazel plan to build a shining white art deco lighthouse on a rugged but beautiful clifftop in north Devon. But almost immediately, their wildly optimistic plan runs into trouble. [AD,S]
Steph and her husband Alex plan to build a contemporary farmhouse on Steph's grandfather's old farmland. But a lack of money leads to a long spell in a caravan and a total redesign... [AD,S]
Despite a lack of experience, former RAF pilot Jon project manages the construction of a three-storey upside-down home clinging to a steep slope in the Malvern Hills in Worcestershire. [AD,S]
Adam and Tassy convert a 20-metre-high Northamptonshire water tower into a fun family home with curved walls, slides, secret rooms, a firefighter's pole, a swimming pool and a sky garden. [AD,S]
Can Leigh and Richard transform a derelict 17th-century Cornish flour mill, which is full of rotten timbers and riddled with structural cracks, into a warm, contemporary four-storey home? [AD,S]
Kevin McCloud returns to Devon to see Kevin McCabe, who wanted to build one of the biggest ever houses on Grand Designs - out of mud. Seven years after it began, the cob castle is complete. [AD,S]
Tracy and Steve Fox want to build an 'urban shed' out of industrial materials in an old milk yard in south east London. But their choice of unorthodox materials proves challenging. [AD,S]
Peter and Chard are building a new home. But he wants it to be round while she says it should be square. They're envisaging vastly different budgets. Oh, and it needs a plane workshop. [AD,S]
When he lost three limbs in Afghanistan, Jon's life changed forever. Now he wants to build a house that allows him to live independently. The design's cutting edge, but the budget spirals. [AD,S]
The 100th episode of Grand Designs follows a couple in central London converting a water tower into a four-bed luxury home over nine floors, crowned with a 360-degree viewing room. [AD,S]
Confirmed city dwellers Michael Butcher and Phil Palmer have moved to the country to run a farm, start a microbrewery and create a vast, dramatic 21st-century farmhouse to live in. [AD,S]
In Devon's stunning Blackdown Hills, engineer Stephen and horticulturalist Elizabeth take inspiration from a shell, to build one of the most ambitious homes ever seen on Grand Designs. [AD,S]
Gwyn and Kate don't know much about renovation but set out to convert a decaying 1920s cinema in South Yorkshire into a family home. The dramatic overhaul requires a leap of faith. [AD,S]
Kevin McCloud meets flying instructor Colin Mackinnon and trapeze artist Marta Briongos, who are building an incredible metal home next to their very own airfield in Scotland. [AD,S]
Geoff's selling up in Spain to build a flood-resistant architectural marvel on a flood plain on the Essex coast. Will he sink or swim when Covid hits and Spain's property market collapses? [AD,S]
Dan and Nina want to build a unique family home, but their plot is dominated by a pond filled with local drainage. Will their West Sussex house be sublime and sleek or a Shrek-like swamp? [AD,S]
Matt and Sophie want to break the mould by building a family house of fun, featuring secret dens, a firefighter's pole and a James Bond room. Just what will this house look like in the end? [AD,S]
In north London, Mark and Penny seek to blend period and cutting-edge architecture as they restore a derelict Victorian gatehouse on a steep hill, and add a giant black zinc-clad extension. [AD,S]
Angelo Mastropietro plans to spend £100,000 to almost single-handedly build himself a 21st-century cave in a damp, dark, abandoned space in Worcestershire. Can it be done? [AD,S]
Tom and Danielle use their steam-bending skills to build a wavy wooden house full of twisty furniture in Cornwall. But with a relatively modest budget, have they taken on too much? [AD,S]
In Devon, Mark and Candida are building a timber-clad house in the shape of a plough. It includes a huge, complex, curvy roof, a timber frame and a working barn made of steel and Devon cob. [AD,S]
Kevin McCloud meets Clinton from West Sussex, who's willing to spend whatever it takes to build one of the largest homes ever to feature on Grand Designs. [AD,S]
Paul Rimmer has worked with bricks for 40 years, renovating Victorian houses in Bolton. But now he plans to hand-build his own state-of-the-art wooden home - if his funding holds up. [AD,S]
Richard and Felicia set out to turn a vast underground water reservoir near the Humber Estuary into a family home - an almighty feat of engineering. Then a life-threatening illness strikes. [AD,S]
Kevin McCloud meets Martin and Kae Walker, who want to build the ultimate family home near York, inspired by a giant farm shed and featuring an ingenious 'mothership' for good parenting. [AD,S]
Identical twins Nik and Jon are building near-identical houses in Sheffield. Raised on steel stilts, these two extraordinary properties pay tribute to the city's industrial past. [AD,S]
Young couple Ben and Rachel decide to turn an average 1950s house in south London into a modernist masterpiece. But will it get past the local planning department? [AD,S]
Michele and Michael want to transform a derelict 100-year-old blacksmith's in County Antrim on a tiny budget and by hand. But the odds and the weather are stacked against them. [AD,S]
With only £500 in the bank, Simon and Jasmine plan to build a three-bed Grand Design on a hill in rural Pembrokeshire and become self-sufficient within five years. Is it really possible? [AD,S]
Kevin McCloud revisits Strathaven in Scotland, where flying instructor Colin and trapeze enthusiast Marta built an incredible metal home inspired by aircraft hangars on their own airfield. [AD,S]
Cumbrian couple Rob and Ruth plan to transform a 200-year-old former blacking mill of historic importance into a new-build hybrid. But can they conserve its original atmospheric magic? [AD,S]
Andy and Jeanette attempt a precarious clifftop build on the west coast of Scotland. There are battles with extreme weather, overrun budgets, an emotional shock and a last-minute change. [AD,S]
In Devon, Joe and Claire hope to create 'one of the greatest homes on the planet' that looks like a huge work of art. But from the start, the expensive build faces mind-boggling problems. [AD,S]
In Lincolnshire, high-flyers Zara and Giuliano set out to build a 400-square-metre malthouse-inspired home, but run into problems from the get-go. Can they get the project off the ground? [AD,S]
Energy conservationist Andrew plans to build a radical, self-heating home by storing the warmth of the summer sun in insulated earth banks. But will this gigantic thermal experiment work? [AD,S]
Kevin McCloud meets Jaime and his wife Mimi, who are converting a listed mini castle in Buckinghamshire into a family home. But will their wildly optimistic schedule be a problem? [AD,S]
Natasha Cargill wants to build a home shaped like two enormous periscopes near Norwich. But a limited budget and tight planning restrictions take their toll. [AD,S]
In 2017, Leigh and Richard bought a derelict Cornish flour mill to restore and turn into their home. By 2021 the rooms and landscaping were still unfinished. Has the grind finally paid off? [AD,S]
Jon and Noreen take on an epic self-build, creating a modern house on stilts, up among 27 protected trees on a half-acre site in the heart of a Gloucestershire town. [AD,S]
In Northern Ireland, young farmer and architect Patrick hopes to make a home out of four large shipping containers welded together to form a giant cross. But his budget is under threat. [AD,S]
Rebecca and Gregory have a highly ambitious plan to transform a small, damp, single-storey bungalow in Cornwall into a cutting-edge home, and are determined to do much of it by themselves. [AD,S]
Chris and Kayo build an intricate, radical and complicated home on protected land close to one of Britain's most historic abbeys. But do they actually like what they've built? [AD,S]
Architect Ben Hebblethwaite builds a nautically styled home that floats on stilts for his boat-loving uncle James Strangeways. But a contractor problem puts the entire project at risk. [AD,S]
Does good architecture have the power to heal? Kevin revisits Elinor and Born, who in 2017 built a clean-aired, hypoallergenic house, motivated by the extreme allergies of their two boys. [AD,S]
Andy and Nicki Bruce try to build an experimental flood-proof, floating house on an island in the River Thames. But building such a complex design on a site with limited access isn't easy. [AD,S]
In south west London, Elinor and Born plan to build Britain's first hypoallergenic house, to alleviate their two young sons' life-threatening allergies, in a race against time. [AD,S]
In south west London, Kevin McCloud meets Justin, who's restoring a neo-Gothic cemetery keeper's lodge and converting its toilet into a luxury ground-floor extension with a moat and pool. [AD,S]
Design engineer Mark, who has paralysis from the waist down, plans to build a cutting-edge, accessible family home for £600k. But it's a huge emotional strain for him and his wife Penny. [AD,S]
Kevin revisits Graeme and Melanie, whose hugely ambitious Hackney haven was hampered by a basement bombshell. Have they finally got out of the red and into their modernist home? [AD,S]
In south east London, Beth and Andrew rescue a crumbling Victorian dairy, hoping to turn it into a shabby chic family home fit for modern life. But is the building too derelict? [AD,S]
Adrian and Megan plan to build a concrete home in Sussex. No carpets, no plaster - just concrete, inside and out. And with cutting-edge technology that's never been used for houses before. [AD,S]
Young architect and shed fanatic Micah Jones plans to turn a dilapidated agricultural building into an upside-down four-bedroom home in County Down's rolling countryside. [AD,S]