The current archive centre in Lewes is no longer fit for purpose
Plans to build a £19m archive centre in East Sussex are to go before the public during a month-long consultation.
"The Keep" would house more than 900 years of Sussex history at Woollards Field at Falmer.
East Sussex County Council said it would be a valuable resource for schools, colleges and universities.
The current archive and record office at The Maltings in Lewes has been in operation since 1949 and is no longer fit for purpose.
The project is a partnership between the county council, Brighton and Hove City Council and the University of Sussex.
An East Sussex County Council spokesman said: "The Keep will be a vibrant community resource and research facility where visitors can access all of these collections under one roof for the first time."
If planning permission is approved, building work could get under way next year, with the centre due to open in 2013.