A £3m programme of restoration is due to begin at Lancaster Castle and expected to last two years.
The Duchy of Lancaster has commissioned the works which are designed to protect the historic fabric of the Grade II Listed building.
Over the next two years, the Duchy team will work with heritage architects, archaeological specialists, structural engineers and conservationists to restore further areas of the castle to a weatherproof, watertight and structurally sound condition.
Work is currently underway on the roof of the Victorian clock-tower and rooms previously used as debtors’ workshops. Scaffolding is expected to come down by October this year.
Duchy CEO Nathan Thompson said: “We have two main objectives running in parallel – firstly, to protect the castle for future generations and secondly, to share this truly historic landmark with the people of Lancaster and encourage more visitors to the city.
“Many events already take place here and our intention is to open up more and more of the internal spaces as the necessary improvement works are completed.
“We believe that the castle is not only an important heritage site of which Lancastrians should be immensely proud, but that it should also provide a central focus for Lancaster’s vibrant social and cultural life.”
The Shire Hall and Crown Court side of the building has been leased to Lancashire County Council since the 1930s while the rest of the Castle operated as HM Prison Lancaster until 2011.
Since the Castle was returned to the Duchy’s ownership in 2012, much investigation work has been done to establish the true condition of the building and establish the most appropriate solutions for repair and renovation.