Two historical information services are combining.
The Greenwich Borough Museum was founded in Plumstead in 1919 and the Greenwich Local History Library has been at Woodlands, in Blackheath, since 1970.
Both services will close to the public at their present locations on Saturday.
The combined service will reopen as the Greenwich Heritage Centre on October 21. It will be based at Building 41, Royal Arsenal, Woolwich.
For further information, call 020 8855 3240 or 020 8858 4631.