The Fitzwilliam Museum in Cambridge has been awarded 5.
Fitzwilliam Museum gets lottery funding
6 million by the Lottery Fund to develop and expand its facilities.
It will go towards the 11m costs of redeveloping a courtyard to provide extra accommodation on four floors.
All but 1 million of the money needed for the ambitious project has been raised - and a private donator has promised to give half of that if the museum can raise the other 500,000.
The Courtyard Development will house a new and enlarged shop and cafe, a suite of education rooms, a multi-purpose orientation hall and a new gallery for temporary exhibitions.
The London firm of architects John Miller and Partners has been brought in to oversee the project. The firm was responsible for the Millbank extension to the Tate Britain which opens this autumn as well as the Serpentine Gallery.
The Fitzwilliam Museum was created in 1861 when Richard, the 7th Viscount Fitzwilliam, bequeathed his works of art, his library and funds to Cambridge University.
It attracts more than 250,000 visitors each year and museum bosses say the project is vital to bring the facilities up to scratch.