Historic Highcliffe Castle is set to win conservation funding of nearly £3m.
The money from the Heritage Lottery Fund is for Phoenix Flies project which aims to repair and reopen a full wing of the castle which is currently derelict inside and to create a heritage centre for visitors.
A priceless collection of medieval stained glass that belonged to Lord Stuart de Rothesay will be conserved and displayed within the castle.
The project aims to receive back on loan from the Victoria & Albert Museum, key pieces of the original furniture and to display them within the building; also, to restore the Victorian kitchen and create a dynamic study centre.
The grounds will also benefit from the grant, and there are plans to improve the parkland including more interpretation of the influence of Capability Brown.
Cllr Ray Nottage, Leader of Christchurch Borough Council said: “We're delighted that the Heritage Lottery Fund has given us this support. The project is not merely about restoration but about creating a lasting legacy for Christchurch and an attraction that will support the local economy and be enjoyed for generations to come.”
Highcliffe Castle was built between 1831 and 1836, was lavishly furnished in the 18th Century French style and played host to royalty, the rich and famous, including Harry Gordon Selfridge, who leased the castle from 1916 to 1922. It is a focal point for the local community who enjoy a wide range of exhibitions and events throughout the year.
It had a chequered history after it was sold in 1950 and by the end of the following decade was reduced to a fire-ravaged, roofless ruin.
Assisted by a Heritage Lottery Fund grant in 1994, the exterior of the building was restored.
Nerys Watts, Head of the Heritage Lottery Fund South West, said: “HLF's initial support for these exciting plans mean that the last piece in the conservation jigsaw can be put in place at Lord Stuart de Rothesay's 'fantasy' house - Highcliffe Castle.
“By restoring the East Wing, creating new learning spaces, reinstating the internationally important stained glass collection and doubling the areas open to the public, this impressive project will totally transform the visitor experience at Highcliffe and ensure the Castle's long-term future.
“This project is particularly good news as Christchurch is one of our development areas where we've historically funded fewer projects. We're delighted to be supporting Christchurch Borough Council and look forward to seeing their plans progress over the coming months.”