Conservation work is underway at Castle Rushen as Manx National Heritage carries out a six-month project to repair and protect the historic Derby House.

The work began last month and is expected to be completed by March 2027, ahead of the castle reopening to visitors for the spring season on March 23.

Specialist repairs are being carried out by local contractor Grenaby Limeworks, using traditional materials and techniques to preserve the building’s historic character.

The project includes repointing the south elevation of Derby House and rebuilding an area of Georgian brick infill using lime mortar.

Further work will involve repairing the parapet gutter leadwork, reinforcing window lintels and restoring the building’s traditional timber windows.

Inside, repairs will also be carried out to the staircase leading to Castle Rushen’s Registry Office, alongside work to restore decorative finishes.

Scaffolding is being erected within the castle to allow contractors to access the areas requiring attention.

John-Paul Walker, historic buildings architect for Manx National Heritage, said the work would help protect one of the castle’s important historic buildings.

He said: ‘Castle Rushen is one of the Isle of Man’s most important historic landmarks, and caring for its buildings requires a commitment to preserving the historic materials and craftsmanship that make them so special.

‘This project will address important repairs to Derby House, helping to protect its historic character and ensuring it can continue to be appreciated by future generations.’

Castle Rushen closed to visitors for the winter season on November 1, with the conservation work continuing during the closure.

Derby House dates back to the 1580s and was originally built to provide private accommodation for the Earl of Derby during visits to the island.

It was later extended in the 1640s to accommodate James Stanley, the seventh Earl of Derby, and his family.

Following the island’s Revestment in 1765, the building was repurposed for offices supporting the law courts and later served as the legal library and Rolls Office.

It continued to be used as the island’s Registry Office until recently.