Monk Bretton Library in Barnsley will stay open until its new location is ready, Barnsley Council has said.
The library, on Lamb Lane, will move to the former Redfearns Sports and Social Club later this year.
It had been feared the library might close before the new one was ready.
The library is open 9.30am to 1pm, and 2pm to 7pm, on weekdays - except Tuesdays when it is closed - and on Saturdays from 9am to 12.30pm.
Last year residents were consulted over whether they wanted to move to the former Redfearns site or have a mobile library.