The 10-year long programme, costing more than £32m, will see Chatsworth restored to its full glory, inside and out.

With its gold leaf and pale yellow stonework glinting in the spring sunshine, Chatsworth will reopen to visitors on 24 March, completing the biggest restoration and conservation of the house, garden and park since the 1820s.

A special exhibition, running between March and October this year and called ‘Chatsworth Renewed’, will highlight the work of those involved in the restoration process. From rebuilding the Belvedere turrets to replacing vast tracts of lead on the roof; carving the tiniest details in stone using dentistry tools to replacing huge blocks in the walls; careful restoration of priceless artworks to the renovation of famous water features in the garden; over the last decade Chatsworth has been fully restored and made ready for the next century.

Visitors will be able to hear the stories of the skilled people involved in the project, understand the challenges they met, and appreciate the quality of their work. As they peek below floors and behind walls they will be able to shine a light on hidden corners of the house and peel back the layers of craftsmanship and history.

In 2004, a comprehensive structural survey of the house and its many services was undertaken. This demonstrated that major work was necessary to renew the infrastructure of the building and ensure its preservation for the next 100 years, as it was deemed to be at significant risk from fire or flooding.

Weather damage and industrial pollution over hundreds of years meant cleaning and replacing gritstone across the whole exterior of the 300-room house. All the new stone used for repairs came from the same, specially reopened, quarry that provided the stone for the building of the North Wing in the 1820s by the 6th Duke of Devonshire.

The Duke of Devonshire:-

“The level of forensic research, expertise and craftsmanship applied by so many people has been absolutely inspiring. It has always been a thrilling moment to see the house come into view as you drive across the park and now that view has been made even more magical. With the years of blackened grime now removed from the stone, it looks truly magnificent.”

Traditional skills have been used throughout the restoration for both urgent repairs and to make Chatsworth ready for the future. The restoration of stonework, wood panelling, tapestries, flooring and other structures has revealed much about previous generations following the arrival of the Cavendish family in 1549, as well as how far the skills of masons, joiners, plumbers and weavers have changed, or remained, over centuries.

Among the most interesting finds have been objects and traces left behind by workmen over the centuries. As well as working sketches, newspaper cuttings and things that have been dropped, there are specific messages from the past to the future.

On one plank found in 2013 there are the names of those from nearby villages whose work and comment on the news of the day has become part of the fabric of the building: Mr John Taylor of Over Hodder, Mr Thomas Wright of Beeley and S Walker of Pilsley. “Chatsworth August 26th 1841. Parliament met on the 19th The Queen Victoria would not honour the Tories with her presence. The weather is very unfavourable for the harvest. Flour is 3/6 per stone. Joiner’s wages are 24s to 27 per week. Labourer’s wages 12s. Parliament was dissolved this summer on account of the Whigs bringing forward a measure to appeal the present system of the Corn Laws. The election is over. The Tories the majority. Trade is very dull. Many out of employ and starving. This winter will be a severe one. So down with the Tory rascals.”

Another joiner writing in the 1880’s about the 8th Duke, who was at that time leader of the Liberal Party, says: “God bless the Duke of Devonshire, the most liberal nobleman in the kingdom – he is now in his 51st year. May he live for ever for the sake of poor people.”

The joiners who found the plank have added their own inscription: Adam Clarke and Luke Thomas 15/01/2013.

Chatsworth Renewed is all about those men and women whose work, often unseen, transforms raw materials into the jewel that is Chatsworth today. During the season there will be opportunities to get hands-on with the materials they used, including stone, wood, metals and wool; as well as to discover what runs silently and invisibly in the pipes and conduits behind the walls and underneath the floors. Visitors will even be able to have a go at weaving to appreciate how the 17th century tapestries were made, and what it takes to care for them today.

Restoration of Chatsworth’s artworks has, at times, occupied most of the leading British conservation studios over the past decade. The extremely rare Mortlake Tapestries from the 1630s, based on Renaissance painter Raphael’s cartoons of Acts of the Apostles, represent the birth of the English tapestry industry. Although damaged by atmospheric pollution in the 19th and 20th centuries, they have now undergone significant restoration and will be hung together this year, covering 54 sq metres of the walls in the State Drawing Room.

Remodelling of the house has included the creation of new visitor routes and improved access. A new area, the North Sketch gallery, has been made from older, little used rooms. In 2014, in a ground-breaking fusion of art and architecture by Jacob van der Beugel, a representation of the DNA of the Duke and Duchess of Devonshire and their heirs became part of the fabric of the building. The entire North Sketch Gallery was lined with handmade ceramic panels. Each of the 659 ochre panels specifically corresponds to one particular slot on the wall, creating an artwork as individual as DNA itself.

Alongside this and other contemporary ceramic artworks, visitors will be able to see archaeological clay finds that have been unearthed during the process of digging new drains, including a rare fragment of the original Tudor house that Bess of Hardwick built.

Chatsworth has a long history of welcoming visitors. Since the first Duke’s time, people have been able to enjoy the park, the garden, the house and the collections. Having been closed during the Second World War, the house was reopened to the public in 1949 and in spite of petrol rationing 105,000 people visited that year. In the succeeding decades, the 11th Duke and Duchess successfully formed the foundations for the attraction that flourishes today, welcoming more than 600,000 visitors each year under the 12th Duke and Duchess.

In 1981, the charitable Chatsworth House Trust was set up by the 11th Duke to ensure the long-term survival of the house and collection. Since 1949 the entrance money paid by more than 25 million visitors has made a vital contribution to the maintenance of the house and garden and it is this income, rather than any public funding, that has enabled the current restoration works to be completed.