The landmark agreement was reached between East Dunbartonshire Council, development partner hub West Scotland and contractor CCG.
Construction work is expected to begin on April 4 and to be completed in early 2017.
Council leader Rhondda Geekie said: “The Community Hub is exciting news for Bearsden and will see major investment in the town centre. The new hub will provide everyone in Bearsden with a state-of-the-art facility they will be proud of.
“The network of community hubs continues to be a key aspect of the council’s transformation programme to continue to deliver customer services locally throughout East Dunbartonshire. They are at the heart of supporting town centre regeneration as well as delivering efficiencies and savings in our wider operating model.”
The new Community Hub, which is based on a reconfiguration of the Burgh Hall site on Drymen Road, will include the re-provisioning of the library and community archives from Brookwood as well as enhancing the current hall facilities through a full refurbishment.
The new facility, which will bring together a range of council, library, leisure and cultural services under one roof, will also contain new public meeting rooms and social work facilities, new public toilets as well as an entire upgrade of the current accommodation.
A customer services area will deliver a new, ‘one stop shop’ approach to customer services to make it easier for residents to access and get information about a variety of council services and make payments for them in just one visit.
The car park will close from April 4 until the work is complete. Councillor Geekie added: “We apologise for any inconvenience this work may cause and have done our best to notify businesses, residents and hall users in advance.”