The BBC said the contractor would ‘delight staff and audiences’ by making sure the buildings ‘foster creativity’.
The contract has a provision to extend for up to four more years on completion.
Approximately 1,100 employees will transfer to Interserve from existing providers in April 2014.
Interserve will take on the management and delivery of services at more than 150 facilities across the UK, covering a floor space of 590,000 square metres. It will look after Broadcasting House in London, MediaCityUK in Salford, Pacific Quay in Glasgow and all other BBC operational sites.
Interserve will be responsible for 26 services ranging from critical broadcast engineering and business continuity services, through to implementing a new ‘workplace support model’.
This workplace model is designed to make it easier to see how and when spaces are used, to improve decision-making in estate management.
Interserve has been on the BBC’s list of approved construction companies since 2006 and has delivered £40m of projects since then.
BBC facilities management director Alan Bainbridge said: "The ambition for the new contract will see our facilities management services transformed with innovative, yet simple solutions to delight staff and audiences, supporting the BBC in the digital age.
“This will ensure our buildings – both old and new – are places which foster creativity, helping people deliver their best, most creative work, and which are welcoming and open to audiences. This will ultimately deliver quality and best value to licence fee payers."