Patcham Place, a 16th century former mansion, is to be offered for sale on a long lease by Brighton and Hove City Council.
The property was occupied by the Youth Hostel Association for nearly 70 years until October 2007, but the prominent building has been unused since then.
The plan to put the mansion on the market was discussed at yesterday’s cabinet meeting and received cross-party support. Green councillor Jason Kitcat said at this stage his party would be keeping an open mind as to its future use, although Labour group leader Gill Mitchell expressed her hope that it would not be turned into high-end apartments.
Patcham Place had previously been considered by the South Downs National Park for its headquarters, while the council also looked at the possibility of relocating some of its services there.
However, due to the funds required to refurbish the Grade 2* listed this has not been pursued.
Councillor Jason Kitcat, cabinet member for finance and central services, said: “We think this is the best option for Patcham Place as the council does not have the significant investment needed to bring the historic building back into use.
“Patcham Place is part of Brighton’s history and we’ve been working closely with the planning team on a planning brief that will ensure the building will be renovated sensitively. The green spaces around Patcham Place will remain in council control for public use.”
The council explained that once Patcham Place has been marketed bids will be evaluated and put to the cabinet to make a decision.