Under the latest plans, some 300 migrants will be housed at the 140-year-old Cameron Barracks near Inverness, which had been used for housing Afghans evacuated from Kabul after working alongside the British Armed Forces.
Work to phase out its use for Afghans began in May, including relocating families elsewhere in Scotland.
The Army training camp in Crowborough, which is on the edge of the Ashdown Forest, East Sussex, will accommodate an estimated 600.
The Home Office will have to consult on the plans which could face local opposition. Plans under the Tories to house migrants at former military sites like RAF Scampton, Linton-on-Ouse in North Yorkshire and the old prison site at HMP Northeye in East Sussex were scrapped after a backlash from residents.
The Government is understood to be reconsidering the use of Linton and Catterick Garrison in Rishi Sunak’s constituency in North Yorkshire, although it is unclear how advanced the plans are.
