Bletchley Park near Milton Keynes has secured a £4.6m grant from the Heritage Lottery Fund (HLF) that will go towards improving the visitor experience at the historic former code breaking facility.

Plans for the attraction include restoring some of the park's most important buildings, most notably the listed wooden huts that were the hub of vital codebreaking activity.

New exhibitions and interactive displays will be created to bring Bletchley's story alive for visitors - including educational activities centred around three themes: war, people and puzzles.

It is hoped that the new additions will attract a new generation of visitors to the site.

Carole Souter, chief executive of HLF, said: "The complex story of Bletchley Park revolves around a group of dedicated men and women who quietly worked away with no expectation of public recognition.

Now, more than sixty years later, the Trust will bring to life fascinating tales of the ground-breaking work that took place in this sprawling country estate. I cannot think of a better use of HLF money than to support this project and, in so doing, honour the memory of all who were involved."

The funding was part of a £6.3m funding package that included grants to two other projects - the Grade I listed 'Black Gate' in Newcastle (£1.4m) and the UK-wide Bees for Everyone project.

HLF also announced that initial support has been given to six other projects that are currently developing bids for full HLF grants. These include:

• Opening up Tate Britain's archive collections for everyone to enjoy

• Revitalising Kenwood House on London's Hampstead Heath• Restoring Rochester Cathedral - one of England's oldest medieval places of worship

• Redeveloping the last remaining pre-16th-century courthouse on Edinburgh's Royal Mile• Telling the story of British Black Dance over the last 50 years

• Removing Northampton's most popular heritage site, Delapre Abbey, from the Buildings at Risk' register