The Great Interior Design Challenge - Episode Guide

Tom Dyckhoff presents the search for Britain's best amateur interior designer. The eight heats begin with makeovers of large bedrooms in north London.

The search for Britain's best amateur interior designer continues, with the contestants taking on three knocked-through sitting rooms in a Salford terrace.

In the third heat of the search for Britain's best amateur interior designer, the amateurs redesign glass sun rooms at the top of art deco homes in Kent.

In the fourth heat, three amateur designers makeover sitting rooms in neighbouring homes in a converted mill on the Thames in south east London.

In the fifth heat, the amateurs take on the toughest of makeovers - three kitchens. Tom Dyckhoff explores the history of the 1960s modernist estate in Surrey.

In the sixth heat, the amateurs are creating interiors for three beautiful Georgian almshouses in Southwark, as Tom Dyckhoff uncovers their history.

In the penultimate heat, the amateurs travel to Berrylands to bring new life to three classic semi-detached 1930s homes.

Series searching for untapped interior design talent. Three new designers take on vast living rooms in Brighton for the last place in the quarter-finals.

Series searching for untapped interior design talent. The designers take on four thatch cottages in Milton Abbas, Dorset in the first quarter-final.

Series searching for untapped interior design talent. The amateurs must redesign bedrooms in a 1950s brutalist tower block in Bethnal Green.

Series searching for untapped interior design talent. The amateurs take on Arts and Crafts Victorian front rooms in Moseley for the semi-final.

Series searching for untapped interior design talent. It is the final and the two amateurs must redesign several rooms in grand Georgian houses.

Series searching for untapped interior design talent. In the first heat, Scott, Fiona and Francesca design rooms in neighbouring 17th-century cottages.

Series searching for untapped interior design talent. In the second heat, three new designers take on three 1920s beach huts on Canford Cliffs beach.

Series searching for untapped interior design talent. In the fourth heat, three designers take on the open-plan living and dining rooms of Victorian terrace houses.

Series searching for untapped interior design talent. In the third heat, three new designers update bedrooms in three grand medieval homes in Lavenham, Suffolk.

Series searching for untapped interior design talent. Three designers must transform a bedroom each for three sisters who live in a row of fishermen's cottages.

Series searching for untapped interior design talent. In heat six, three new designers must update three identical living rooms in Welwyn Garden City.

Series searching for untapped interior design talent. In heat seven, three new designers must redesign large open-plan reception rooms in three 21st-century eco homes.

Series searching for untapped interior design talent. In the penultimate heat, three new designers must transform a master bedroom in Port Sunlight.

Series searching for untapped interior design talent. In the final heat, three new designers must redesign the master bedrooms of three 1930s apartments.

Series searching for untapped interior design talent. In the first of the three second-round episodes, the amateurs tackle awkward dimensions in converted oast houses.

Series searching for untapped interior design talent. It is the second round and the amateurs must transform the reception rooms of three Edwardian houses.

Series searching for untapped interior design talent. It is the second round, and the amateurs must transform multifunctional rooms in houseboats on the River Thames.

Series searching for untapped interior design talent. It's the first of the quarter-finals and three previous winners battle it out for two places in the semi-final.

Series searching for untapped interior design talent. In the second quarter-final, three previous winners battle it out for two places in the semi-final.

Series searching for untapped interior design talent. In the semi-final, four former winners are back to redesign a reception room each in Edinburgh's historic tenements.

Series searching for untapped interior design talent. It is the final and the two remaining contestants must redesign three rooms each in a 19th-century stately home.

16 amateur designers battle it out. In the first heat, the group must transform a bedroom each in a modernist former leisure centre in south London.

16 amateur designers battle it out. The three remaining designers are out to impress, working in grade II listed Kentish weatherboard cottages.

Talented amateur designers battle it out. Two designers compete for a place in the quarter-final at a Scottish castle that has been converted into apartments.

The second round of the competition begins as each contestant is given three days and £1,000 to transform a thatched roof bedroom.

The three remaining contestants now have to transform a living room in just three days with a £1,000 budget in a Georgian Terraced house.

In the final round of heat two, two bedrooms have to be transformed in a timber-framed home, in order for one of the two remaining contestants to win a place in the next round of the competition.

The first of the three knock-out rounds, in which designers are challenged to transform a cottage in Tissington.

The three remaining designers redesign a kitchen space in a Victorian half house in Walthamstow.

Two designers compete for a place in the quarter-final. They have to transform awkward attic bedrooms into desirable 1960s riverside homes in Marlow.

In the final heat, four designers compete for a place in the quarter-final. They have to each transform a bedroom in a self-build London estate.

The second round of the final heat see's the three remaining designers take on a reception room in a historic model village.

The last round of the heats follows the two remaining designers as they are challenged to redesign a farm house kitchen.

It is the quarter-final, and the last four designers are in the village of Beer in Devon. Each designer has taken on a sitting room each in a row of coastal cottages. The designer will also be asked to team up with their competitors to test their teamwork skills.

It is the semi-final, the three designers have to redesign a sitting room each in a medieval terrace in the grand cathedral city of Wells. Also each designer must impress in a suprise challenge to test how far they have each come.

It is the grand final. The final two designers are expected to take on three rooms each in an apartment in a grand stately home in Sussex.

In the first round of the first heat, the group of amateurs taking on the design challenge are hairdresser Oliver, dog walker Katie and photographer Daniela. They must each transform a bedroom in Regency properties in the grand Pittville estate of Cheltenham. Katie has a nervous time trying to please the client with her use of a controversial peach colour scheme which divides the judges. Oliver's clients aren't too sure about his methods, particularly as he plans to incorporate children's toy hula hoops into the lighting. Daniela has to design for a younger client but can she satisfy a 12-year-old schoolgirl who is after a sophisticated look for her bedroom? All three are each given a surprise item which they have to cleverly incorporate into their scheme within three hours. Who has impressed the judges? One of them will be going home.

In this round of the first heat, retired actor and director Nicholas, marketing assistant James and event stylist Anna must each transform a living room in three Grade-11 listed former workers' cottages in the pretty town of Saltaire. Nicholas is reaching out to his spiritual side as his client wants a Zen-inspired relaxing consulting room, but he may have gone too far with an elaborate Japanese inspired scheme. Anna has to breathe new life into a lack-lustre living room for her client but will she be able to give it a modern masculine bachelor pad makeover? James also has a testing time trying to fulfill a Scandi brief for his homeowner, but can he finish it to his own high standards?

It is the last of the heats and our designers are Richard, an artist from West Yorkshire, Shaida, a freelance makeup artist from Northampton, and Susanne, a solicitor from Loch Lomond in Scotland. They each have the task of transforming a bedroom in imposing Victorian Gothic cottages. Richard is reaching out to his industrial side for his client who wants a chic hotel look, but will his original artwork and use of raw natural materials go down well? Shaida finds that even though her brief from her client matches her own personality, it doesn't mean that her design will be plain sailing. And a peaceful muted zen-like room is a testing brief for paisley pattern-loving Susanne. Challenged by incorporating the homeowners' bulky furniture and technology, Susanne has to draw on all her design charm to impress.

It is the quarter-final and the two designers who have made it to this stage now take on a living room and a sitting room each. Their budgets have increased to ?2,000 and their team has doubled. They have 48 hours across three days but one room must be finished and judged on day two. The designers are in Worsley, trying to transform rooms in Mock Tudor imposing houses. One designer has problems with their waterworks and might not be able to deliver what they have promised. For the other designer, a timing issue might hinder their whole design integrity. Meanwhile, Tom Dyckhoff discovers hidden tunnels beneath the waterways and looks at what life was like when these houses were originally built.

In the second quarter-final, the designers are in the pretty coastal town of Aberaeron in west Wales, a former fishing port. They are tasked with transforming both a bedroom and a study, whilst incorporating the creative challenge - some rope - into their overall scheme. One designer draws on the surrounding Welsh influences to create their schemes, but will the client like the big retro-inspired theme throughout? The other designer finds that a nautical-themed design plan might not be the best option, and judges Kelly and Daniel have to step in. Meanwhile, architectural historian Tom Dyckhoff explores the coastal village and uncovers its far-reaching architectural influences.

In the last of the quarter-final heats, the designers transform two rooms each in glamorous 1930s art deco flats. A possible asbestos outbreak means work is halted for one of the designers. Will they complete their rooms on time? Meanwhile, the other designer might be going too far off brief with a butterfly-inspired effect which dominates heavily throughout the living room. Architectural historian Tom Dyckhoff takes us back in time and shows us that 1930s Streatham, meaning 'Hamlet on the Street', was one of London's most forward futuristic glamorous neighbourhoods.

In this semi-final, two designers transform two rooms in modern town houses in Bristol. Judging them are regulars Kelly Hoppen and Daniel Hopwood and guest judge Michelle Ogundehin, editor in chief of Elle Decoration. One semi-finalist attempts a very intricate hand-painted mural across all the bedroom walls, but can they deliver precision in the ever-decreasing time limitations? Meanwhile, a designer's plans are seriously thrown into question with their demanding client's ever-changing needs. Architectural historian Tom Dyckhoff looks at his favourite buildings in the series, exploring the subject of Modernism, its European origins and this very complex type of architecture.

In the penultimate show of the series, the two designers have to transform two rooms in pretty thatched cottages in Ashby St Ledgers. Both designers are tasked with transforming a living room and a dining room. Judging them are regulars Kelly Hoppen and Daniel Hopwood and guest judge Michelle Ogundehin, editor in chief of Elle Decoration. Both designers unwittingly use the same colour but will this help or hinder their chances with the judges? One designer is seriously out to impress, but will the use of a very detailed and overpowering matching blue print for wallpaper and curtains impress the homeowners or put them off? Will Michelle Ogundehin agree with Daniel and Kelly or put a cat amongst the pigeons? Meanwhile, Tom Dyckhoff discovers the beauty and origins of olde world picturesque country cottage living and the characteristics of thatched dwelling.

It is the grand final. The two top designers have to complete three rooms each in converted apartments in an 18th-century mock castle in Broadstairs. The designers are tackling a kitchen for the first time ever and our designers soon find out that working in older properties is certainly not without its challenges. Judging this epic battle are Daniel Hopwood and Kelly Hoppen, helped and joined by former judge and interior stylist Sophie Robinson. Only one designer can walk away as winner of The Great Interior Design Challenge. Meanwhile, architectural historian Tom Dyckhoff explores the castle and explains the significance of such a beautiful building in British history.

In this special programme, we bring together the ultimate rules of design - room by room. Across three series of The Great Interior Design Challenge, our designers have come up with cost-cutting, ingenious ideas about how to get a look for less, and they are all here.

We also have some insider techniques for a better home used by our judges - Sophie Robinson and Daniel Hopwood - plus design secrets from the guest judges featured across the series - interior and architectural designer Oliver Heath, designer Orla Kiely and iconic interior designer Kelly Hoppen.

We have broken down the home into five key rooms and compiled our very own step-by-step guide on how to make the most of each one of them. Meanwhile, presenter and architectural historian Tom Dyckhoff gives his own historic tour of the house - explaining how our homes have shaped up over the years.