“These obstacles can be overcome, especially with funding from us, Heritage Lottery Fund and Natural England, but we face a significant challenge in saving these sites for future generations,” said Duncan Wilson, chief executive of Historic England.Only 14 per cent of buildings or structures on the list are thought to be economic to repair, and the total “conservation deficit” between the cost of repairing all the sites and their value once they have been restored is now £613 million.There are 926 places of worship on the register, along with 2,582 scheduled monuments such as prehistoric barrows which are the most at-risk type of heritage, 95 parks and gardens, six wrecks and even six battlefields.:: More information on the Brougham Hall Charitable Trust can be found here The future of the hall will be secured by trustees, including his children Katy, Charlie, Jono and Jim.Mr Terry first came across Brougham Hall in 1968, while on honeymoon with his first wife Janet, and fell in love with it.After making initial unsuccessful inquires about its future, he kept an eye on it from afar until 1985, when he managed to acquire it after learning it was due to be “redeveloped” into houses. Christopher Terry, a former professional cricketer and antiquities enthusiastCredit:The Terry family Bamber Gascoigne at West Horsley Place, Surrey, which has been put on the at risk registerCredit:Heathcliff O’Malley “He gave up the best part of half his life for Brougham Hall,” said his daughter Katy. “He’s done it for 30 years with really very little recognition, so this is really a culmination of what he had been working for.”Paying tribute to her father, who had five grandchildren and left a community of friends in Penrith, said: “He was one of the most charismatic, determined, stubborn, charming people you could ever wish to meet.”His whole life had a purpose and his passion for Brougham was unstinting.” Brougham Hall in Cumbria as it looks todayCredit: Simon Ledingham Christopher Terry’s four children, who have all helped with the projectCredit:The Terry family It is the type of project the phrase “labour of love” might have been created for: one man’s 47-year mission to restore a crumbling historic hall after spotting it on his honeymoon.Today, Christopher Terry is to be recognised for his lifetime’s achievement after Brougham Hall, Cumbria, is finally taken off the Heritage at Risk register, just two months after he died at the age of 77.Mr Terry, a father-of-four, ploughed his time and money into the ruined estate, a 14th century fortification with a Tudor building and 18th century hall, hoping to bring it back from the brink of destruction to save it for the nation.Historic England will today announce it has been transformed so drastically it is no longer considered “at risk”, calling it a “valued visitor attraction” with a community centre to train the craftsmen of the future. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. The following year, he formed a Trust to secure its future – selling it for one peppercorn – and threw himself into restoring it, commandeering the help of his children and second wife Alison in moving piles of stones around the lawns and getting their hands dirty.After winning the bureaucratic battle for funding and planning permission, the hall now attracts up to 100,000 visitors a year, with 15 small businesses based there.Historic England has now praised Mr Terry’s “tireless effort”, saying he “brought the ruins of Brougham Hall back to life”. The Brougham Hall restoration project underwayCredit:The Terry family It is has now officially been removed from the “at risk” register along with the landscape of Castle Howard, Crowland Abbey in Lincolnshire and Wilton’s Music Hall in London.Buildings added to the register include West Horsley Place, the Surrey stately home unexpectedly inherited by Bamber Gascoigne and his wife last year.Formerly belonging to his aunt, the Duchess of Roxburghe, its grounds will soon be home to Grange Park Opera company but is considered “at risk” for historic water damage and structural problems. Christopher Terry photographed this year with his grandaughersCredit:The Terry family Brougham Hall in all its splendourCredit:Alamy It is joined on the list by London Zoo’s aviary, designed by Lord Snowden, a 16th century shipwreck and Newington Green Unitarian Church dubbed “the birthplace of feminism” after Mary Wollstonecroft wrote A Vindication of the Rights of Women while a member.Brighton Old Town, a fort which defended Portsmouth from the French and a church immortalised in TS Eliot’s poem The Waste Land also join the list.Overall, there are 137 fewer entries on the list this year, with experts warning the gap between the cost of repairs and the value of restored properties is growing thanks to a shortage of skills and scaffolding. His family said the recognition was the culmination of Mr Terry’s life’s work, and a final honour for the quiet, determined labour he had put in with little public thanks.It is understood he had been aware that Brougham Hall was likely to come off the at risk register this year, but he died from cancer in August before it could be publicly confirmed.