King Arthur hall and institute led by Charles Dickens among at-risk historic sites

An educational institute once run by Charles Dickens and a hall linked to the legend of King Arthur are among 175 historic sites and buildings now considered to be in serious structural disrepair.

Historic England said it had added them to its Heritage at Risk Register over the last year because they are "at risk of being lost as a result of neglect, decay or inappropriate development".

One of them, the Birmingham and Midland Institute, which is Grade Two listed, boasted Dickens as one of its early presidents.

Founded by an act of parliament in 1854, it played a leading role in scientific and technical education in Birmingham.

King Arthur's Great Halls in Tintagel, Cornwall, is also Grade Two listed and was designed as the headquarters of the Fellowship of the Knights of the Round Table.

A major driver of tourism in Tintagel, it recently came "perilously close to structural failure", Historic England said.

Another building at risk is Papplewick Pumping Station in Nottingham. Built between 1882 and 1886, it is the only pumping station in England to have "retained all its original features, including machinery and the reservoir", the organisation said.

An initial grant of £9,450 has been made to fund an initial assessment of repairs needed because of age-related deterioration.

On a more positive note, 233 sites have been saved, thanks to volunteers, community groups, charities, owners and councils.

Those preserved include two well-known sections of Hadrian's Wall - Steel Rigg in Northumberland and Port Carlisle in Cumbria. This year marks the 1900th anniversary of the wall.

Over the last year, Historic England - a non-departmental government body - has awarded £8.66m in repair grants to 185 historic places and sites on its Heritage at Risk Register, including conservation areas.

In addition, 15 sites have benefitted from £3.25m in grants from the heritage at risk strand of the Culture Recovery Fund.

Duncan Wilson, chief executive of Historic England, said: "It is central to Historic England's mission that we pass on to future generations the rich legacy of historic buildings and places that we have inherited from previous generations. With the help of local communities and partners, imaginative thinking and business planning, we can bring historic places back to life."

Heritage minister Lord Parkinson said: "Historic England's Heritage at Risk Register plays a vital role in our ongoing mission to protect and preserve our rich heritage across the country.

"It is also wonderful to see so many heritage sites removed from the register thanks to the support of local communities together with Historic England."