Since then the government body has talked to owners and South Holland District Council, the local planning authority, about works and funding possibilities, and repairs are under way in some cases.
Ben Robinson, Heritage at Risk lead for Historic England in the East Midlands, said: “The historic buildings and sites that find themselves on the Heritage at Risk Register are some of the most precious, but most threatened, heritage we have.
“Losing them is like shredding pages from our history.”
Conservation areas in Dawsmere, which has three listed buildings, and Long Sutton, which has 29, were highlighted as in “very bad” condition. The Dawsmere one was “deteriorating significantly”.
A district council spokesman said: “We have a total of 13 conservation areas in South Holland, of which only two are highlighted.
“The figures relate to the total number of listed buildings in each particular conservation area. They do not highlight that these are all in a poor state or indeed at risk.
“The reason South Holland’s figures compare very favourably, both regionally and nationally, is that we have worked positively for many years with owners to ensure buildings are conserved wherever possible.”
Also featured on the register were four “scheduled monuments” in private ownership on arable land at Deeping St Nicholas, Crowland and Weston.
Mr Robinson said: “The path to a building becoming at risk is often a long and complex one and getting them back into good shape can be difficult. This is why Historic England appreciates the work of all those who take action, and why we provide support where we can.
“The good news is that every year we are able to celebrate buildings and sites coming off the register after being rescued and given a new lease of life.”