Brandon Library will close for two weeks before reopening in the refurbished Brandon Centre.
The Brandon Centre has undergone extensive renovations and will offer a modern public building housing council, police and education services.
The library will be closed from September 9 to September 24.
Suffolk Libraries has apologised for any inconvenience caused by the closure which is necessary to allow staff to move stock and set up at the new building.
Anyone with a library loan due back during the closure will have the return date adjusted.
Book renewals can also be arranged via www.suffolklibraries, by contacting 01473 584563 or firstname.lastname@example.org