A five-bedroom house in Plymouth, a two-bed Victorian cottage in Croydon and a former coach house in Cardiff are sold under the hammer. Martin and Lucy meet the developers to hear about their plans to make the most of their auction buys.

Martin and Lucy go flat-tastic looking around buildings which developers hope will create around a dozen flats. The properties sold under the hammer are in Stoke in Staffordshire, Bexleyheath in Kent and Gunnislake in Cornwall.

Martin meets a couple who plan to convert a large listed shop into their dream home in Hodnet in Shropshire, and a property developer working on a maisonette in Ferndale in South Wales to help fund hergrandchildren's university education. Lucy follows a five-year project to restore a 17th-century listed building in Margate in Kent.

A smart looking terrace with an expensive problem to fix in Pontygwaith in Wales, a large Victorian house in Okehampton in Devon and an old pub in Sittingbourne in Kent all go under the hammer. All three property developers uncover unforeseen problems - find out if and how they sort things out.

A flat in Edinburgh, a 1930s terraced house packed full with original features in Bromley in Kent and a five-bedroom house in Exeter in danger of falling down are all sold under the hammer. They range from a few months' work to a couple of years - but will the developers manage to make any money on their investments?

Lucy catches up with a developer she met three years ago. This time he has an ambitious project turning two flats in a Victorian house in Hounslow into three. Martin meets two first-time developers working on projects in Springburn in Glasgow and Tipton in the West Midlands.

Martin visits a two-bedroom flat in Budleigh Salterton that doesn't need too much work to get it back in shape and a three-bed terrace in Downpatrick, Northern Ireland, which needs a new lease of life. Lucy meets the buyer of a plot of land in Abbey Wood, London, who has big plans for its future.

Martin looks around a terraced house in West Bromwich and another in Telford, while Lucy checks on progress 18 months after she first visited a bungalow on a large plot near Gillingham in Kent.

Lucy enjoys a day by the seaside visiting a two bedroom maisonette a few steps from the water in Kent's Leysdown-on-Sea, while Martin has a look at a terraced house in Cymmer in the Welsh Valleys and a two bedroom mid-terrace in Penkhull near Stoke.

It's a family affair for all three property development projects in Port Talbot, Wimbledon and Telford. A father and daughter, cousins and a father and his two stepsons tackle projects bought at auction from just over 20 thousand pounds to more than 1.2 million pounds.

Lucy meets a primary school teacher who buys a basement flat in East Dulwich in London which looks perfect but she soon discovers has a major issue. Will she be able to sort it out on her budget and go to the top of the class?

Martin meets property developers in Ebbw Vale in Wales and Workington in Cumbria - both of whom have ambitious plans for kitchens and bathrooms!

Lucy is in London looking around a one-bedroom flat next to a train line with a hefty auction guide price, while Martin meets a father and son team working on their first development property - a two-bedroom terrace in Abertillary. He also catches up on the progress of an ambitious project to do up a pair of semis in Walderslade in Kent.

An enormous semi in Rotherham, an impressive former chapel in Fraddon in Cornwall and a tiny terraced house in Putney in London go under the hammer. But which one could command a price tag of well over a million pounds after it has been spruced up?

Martin and Lucy visit a house in Congleton in Cheshire, a one-bedroom flat in Willesden in London and a former ambulance station in Port Talbot in Wales. All three properties need a lot of work and the projects vary in timescale from a few months to several years. Will the developers be pleased with the results?

A former railway worker's cottage in Feniton in Devon, a terraced house in Cobridge in Stoke and a former Methodist chapel in Somercotes in Derbyshire are all sold under the hammer. They all need major work and one of the projects is in its fourth year - but will all the time and money spent be worth it?

A mid-terrace house near Birmingham, a flat in London's vibrant Maida Hill and a bit of land in Scotland's historic Dunfermline catch the attention of property developers who have grand ideas - but will they go according to plan?

Two friends who buy a house in Cumbria's Maryport discover a bonus room they never knew existed. Elsewhere developers tackle a terraced house in Burton-upon-Trent, while in Deal in Kent an ambitious redevelopment of an ambulance hall gets under way.

Martin and Lucy look around a trio of terraces. But there is a twist - one of the homes in Stoke is an enormous property which Martin thinks started out life as three terraced houses.

Lucy loves a quirky little terraced house on a green in Whitstable in Kent. Martin is impressed with the stunning views from a three-storey terraced house in the former mining village of Penrhiwceiber in Wales.

Martin and Lucy travel the country visiting properties sold under the hammer. A large barn in Upwell in Norfolk, a period property in Folkestone in Kent and a house in Chesterton in Newcastle-under-Lyme are all in need of major TLC.

A terraced house in Burnely in Lancashire, a bungalow on a big plot in Paddock Wood in Kent and a semi in Chaddesden in Derby all go under the hammer.

They all need major renovation work, but will their new owners manage to finish everything on time and on budget?

Property renovation series. A semi-detached is given the wow factor, a shop gets a new lease of life and will the new owner of a pub in Buckinghamshire call time on pulling pints?

Martin Roberts and Lucy Alexander visit a trio of terraced houses in London, the Midlands and Devon. All have been sold under the hammer and all by developers who hope to turn a profit. But do any of them turn out to be sound investments?

Property renovation series. A trio of properties from a terraced house to a former care home are bought by three different families with very different timescales and budgets.

Martin Roberts and Lucy Alexander are in England, Scotland and Wales to look at a mid-terrace, a lovely Georgian flat and a former public convenience. Will any of the developers be flushed with success?

Martin and Lucy are in London, the Midlands and Scotland looking around properties sold under the hammer. But will any of the new owners manage to turn a profit on their projects?

Lucy finds hidden depths in a Ramsgate listed building while Martin meets a buyer who's more than a little surprised by his auction purchase in Dunmurry, Northern Ireland. And in Earls Court, London, we find a little flat with big potential.

In Folkestone, Kent, Lucy finds a big renovation project looking for just the right purchaser. Martin looks around a first-class opportunity in the form of a disused post office and visits a couple who are starting their lives afresh with a mid-terrace house in Staffordshire.

Martin Roberts meets a man who buys a house in Wales to give his mother-in-law who lives next door peace of mind after it has stood empty and neglected for 12 years. And two other properties in Derbyshire and Kent also get renovated - but do they turn out to be good investments?

Martin Roberts falls in love with the seaside views of a Devon cliffside house, while Lucy Alexander squeezes into a bijou London pad and discovers whether converting former police cells in Ramsgate was a labour of love - or just hard labour.

It's a tale of two studio flats - one in London, the other in Scotland - which went under the hammer for very different prices, and Martin meets a former London football coach and his model son who take on a semi in Stoke - but will they score an own goal?

A London flat in a 1960s block, a semi in Staffordshire and a quirky cottage in Cornwall are all sold under the hammer. Martin and Lucy follow the progress of the renovations.

It's a family affair today when Lucy and Martin follow development projects run by parents and their children. But at the end of it, will it still be a case of happy families?

A terraced house in Stoke, a huge office in Ashford and a listed Victorian house in Plymouth are all renovated over very different timescales, from a few months to four years.

A couple who buy two bungalows on a plot in Devon create a modern home making the most of the stunning views, while a terraced house in Stoke and a flat near Glasgow also get refurbished - but do any of the developers stand to make a profit?

A piece of land, a flat and a semi are developed on today's show with very differing times, ranging from one day to four years. Martin and Lucy travel between Kent and Durham to check out the projects.

A piece of land in Kent, a terraced house in south Wales and a flat with a quirky layout in the borders of Scotland all go under the hammer. Martin and Lucy meet the new owners, but will any of them manage to make money on their investments?

Martin and Lucy meet a father-and-son team with high-end plans for a Surrey bungalow, two friends who plan to renovate a one-bedroom flat in Gateshead and a man with lofty ambitions to convert an Edwardian water tower into a home.

A Cornish farmhouse with stunning coastal views, a garden flat in Essex and a grade two listed Georgian house in Kent all go under the hammer. Martin and Lucy meet the new owners and hear their renovation plans.

A substantial Kent property divided into flats, a three-bedroom house, small workshops in Derbyshire and a one-bedroom flat in a leafy Surrey town are all sold at auction. They all need work done on them if their new owners are going to make any money.

A ground-floor flat, an end-terrace house and a bungalow, all in need of modernisation, are sold under the hammer, but will the new owners make any money on their investments? Martin Roberts and Lucy Alexander have a look around and check up on progress.

Property renovation series. Martin looks around a tired-looking bungalow in County Durham bought by a couple with three labradors and meets a new property developer who is working on a terraced house in Wales, while Lucy follows the progress of a flat in central London.

A couple fall in love with a converted stable block in North Yorkshire, but will it be enduring love after all the work is done? Plus projects get under way in Stoke and Tunbridge Wells.

An eight-bedroom house, a semi-detached and an end-of-terrace house are all sold at auction. Martin Roberts and Lucy Alexander meet the developers all keen to make some money on their investments.

Martin Roberts and Lucy Alexander look around properties sold under the hammer. Three sisters join forces to buy a three-bedroom flat in Streatham, London, as an investment property. But will there be any fallings out before the project is done? Plus properties in Derbyshire and County Durham with very different renovation budgets.

Martin and Lucy travel between the North and South visiting two semis and a bungalow all sold under the hammer. All three properties need major renovation work, but will any of the developers manage to get the job done according to plan?

Martin and Lucy look around properties sold under the hammer, including a well-cared-for house in Cornwall which comes with a stunning garden that takes Martin's breath away.

Lucy meets a recently married man who, with his bride, buys a three-bedroom house in Streatham. He jokes that although she is an interior designer he is worried because she has expensive taste.

Martin and Lucy look around very different properties from a modern detached house, to a listed cottage and a terraced house ripe for extending. They all need money spent on them, but at the end of the projects, will there be profits for any of the developers?

Martin looks around terraced projects in Staffordshire and South Wales, while Lucy looks at a small, rundown detached cottage on a large plot with huge potential in Surrey.

Martin and Lucy visit a derelict 200-year-old listed cottage in Cumbria, another cottage in Cornwall as well as a huge retail building in Wimbledon.

A studio flat in London, a cottage by a Derbyshire canal and a mid-terrace in south Wales all go under the hammer. Martin and Lucy can see potential in all of the properties and have plenty of ideas on how to add value. But do the property developers who bought them at auction agree?

A one-bedroom flat in London, a Kent maisonette by the sea and a Victorian terrace in Crewe go under the hammer at auction. They all need renovating - they all get new kitchens and bathrooms - but do their new owners stand to make a profit?

Martin and Lucy are in the south of England and Northern Ireland looking at properties sold under the hammer. A flat, a Victorian house with seven separate rental rooms and a 1960s terrace all get renovated - but which one stands to make the most profit?

Lucy catches up with developers who had planned to build several houses on one plot in Surrey while Martin looks around terraced houses in Staffordshire and Cumbria. They're all very different projects with very different development budgets - but will any of them make a profit?

A house by the coast complete with three flats and two bedsits, a Victorian terrace in London and a 1960s terrace in Corby all go under the hammer. All very different but Martin and Lucy spot potential in all of them - but will the buyers make the most out of their investments?

Martin and Lucy follow the progress of four properties from London to Stoke. Lucy meets a father-and-son team with ambitious plans to convert a two-bed Kent semi into a four-bedroom home. Martin meets a family who have moved back to Britain from Jamaica and hope making a profit on a flat in Lewisham will help them buy a larger house to live in. He also meets a developer who buys not one but two neighbouring period terraces in Stoke. They are in a terrible condition but the former HR manager reckons he can turn them into beautiful homes.

Martin Roberts and Lucy Alexander look round two terraced houses and a large semi in the Midlands and the north east. There's a rush on with one of the projects - a couple want to do their auction lot up and turn it into their perfect family home before their second baby arrives.

Martin Roberts and Lucy Alexander are in London, the south coast and the Welsh Valleys looking around three very different properties that were sold at auction. Martin meets a publican who bought a three-storey house in a Welsh village and refurbished it in record time. Lucy looks around a beautiful Georgian town house in Margate converted into eight flats, while Martin looks at a more modest maisonette in London.

Lucy meets a couple seen before on Hammer when they made a great job of renovating a London flat. They're back to have another go at a one bed flat in Raynes Park, but are ominous signs of damp a sign that this time may not be such a smooth ride? Martin heads to Twechar in Scotland to a two-bed terrace that's destined to be part of a retirement plan for its golf loving new owner. Martin also meets up with two friends turned business partners who are hoping a semi-detached house in Chesterfield will turn a healthy profit for their joint venture.

Martin looks round a tiny rundown flat in Chelsea which experts reckon could command a price tag of a million pounds if it's done up well and there are terraced houses in Dover and Sandbach, while not as expensive, still could be winners if the developers get them right.

Property renovation series. A retired navy man and his family renovate a flat in Port Glasgow, while developers in Derbyshire and Kent try and make money on their terraced houses.

Martin Roberts and Lucy Alexander travel between Kent and Scotland inspecting properties which have been sold at auction. A family do a great job fixing a fire-damaged terrace in Carlisle. Lucy visits a former travel agency in Folkestone and Martin follows work renovating a rundown community centre in Dunfermline.

Martin and Lucy travel up and down the country visiting properties which have sold at auction. They see two very different terraced houses in Lynemouth and Belfast and a bungalow in Derby which a couple plan to make their forever home.

Martin and Lucy look around two terraced houses and a large semi in the Midlands and the North East. There's a rush on with one of the projects - a couple want to do their auction lot up and turn it into their perfect family home before their second baby arrives.

Martin Roberts meets a father-and-son building team working on a large semi in Derbyshire, and a mother and daughter in Belfast doing up a four-bed terrace. Lucy Alexander looks around a modest one bedroom flat in Clydebank in Scotland which is just about ready to move into.

Martin Roberts and Lucy Alexander travel from the south east to the north east of England, before heading to Northern Ireland. The properties range from a bungalow and a terraced house to a unique water tower.

Martin Roberts meets plumber Amy who does a fantastic job renovating a cottage in a Cornish village. Plus two sets of farmers, in Cumbria and Northern Ireland, both hoping to make money on property developing projects.

Lucy Alexander looks at a derelict house in Surrey where the new owners plan to build four houses, and Martin Roberts meets a novice developer in Crewe and a couple of seasoned professionals in Cheshire. Will they all turn a profit with their projects?

Lucy Alexander meets a couple who buy an old prefab in the New Forest and hope to knock it down and build their dream home. Martin Roberts meets a man who breaks a property developers' rule and buys a flat on an impulse. It's a family affair in Derby when a mum buys a house, her son does it up and her daughter moves in!

Martin Roberts looks around a semi in Northern Ireland and a flat in Newcastle, while Lucy Alexander has a look at a basement flat in Dover which boasts a stunning view.

Lucy Alexander has a look around a former funeral home in Maidstone and a two-bedroom purpose-built flat in Cricklewood, while Martin Roberts catches up with a young man who took up property developing in Stoke-on-Trent after a motorcycle accident.

Lucy Alexander meets three friends who give a top-floor flat in Harrow a high-end finish. And Martin Roberts meets a seasoned property developer in Durham and a PhD student in Stoke-on-Trent who both hope to make money on their three-bedroom property investments.

Lucy Alexander is serenaded by an opera singer who property develops in his spare time. And Martin Roberts is in the midlands and Cumbria meeting a couple and a young man, both determined to make money from their property investments.

It is a family affair as a father and daughter, a mum and her son and two cousins tackle very different renovation projects, from an end terrace to a plot of land.

Martin Roberts and Lucy Alexander visit three houses near water in different parts of the country, including a wonderful cottage with a stunning view in Devon, a town house in Sheerness and a charming one-bedroom cottage in North Shields.

Lucy Alexander tours a farmhouse and ten-acre equestrian centre in Kent. Martin Roberts is in the midlands and the north looking at more modest renovation projects. Will any of the developers turn a profit?

Martin Roberts looks around a two-bedroom house in Stoke with wonderful countryside views and sees a great ground-floor flat in Glasgow. Lucy Alexander meets two boyhood friends who join forces to buy and renovate a house in north London. Will any of them make a profit?

Martin Roberts and Lucy Alexander travel the length of Britain, calling in on a holiday home on the south coast, a detached house in the Midlands and a great tenement flat with much potential in Glasgow.

All of these properties have been sold at auction. Martin and Lucy find out who bought them and what was paid when they went under the hammer.

Lucy Alexander looks around a run-down two-bedroom flat in Fulham, but the potential for profit is huge. Martin Roberts calls in on a former railway cottage in the North East and sees a terraced house near the Kent coast that needs doing up.

All of these properties have been sold at auction. Martin and Lucy find out who bought them and what they paid when they went under the hammer.

Lucy Alexander meets a retired bingo caller who buys a renovation project in Maidstone, but will he be calling 'house'? Martin Roberts has to navigate his way through a maze of a building to find a one-bedroom flat in Salford, and calls in on a house in Stoke with an outside toilet. Let's hope the new owner isn't caught short on his investment.

All of these properties have been sold at auction; Martin and Lucy find out who bought them and what they paid when they went under the hammer.