The sale or closure of the remaining 10 council-run elderly people's care homes in Northamptonshire are two options to be discussed by county councillors.
The council, which in 1999 transferred eight of its homes to private firm Shaw Healthcare, is looking at the future of older people's residential care.
Other options being considered are the retention of the homes or working in partnership with a health organisation.
The plans will go before the county council's cabinet on 14 July.
The council's 10 care homes
Boniface House, Brixworth
Evelyn Wright House, Daventry
The Grange, Daventry
Cotswold House, Northampton
Ecton Brook House, Northampton
Lakeview House, Northampton
Obelisk House, Northampton
Southfields House, Northampton
Ridgeway House, Towcester
Hemmingwell Lodge, Wellingborough
A report prepared for the council has detailed a plan for the future of older people's residential and nursing care in Northamptonshire.
The five-year strategy aims to improve the quality of residential care and ensure sufficient supply of good quality dementia care.
Currently, the county council has 10 older people's residential care homes with a total of 399 places.
It is estimated that maintaining the homes at the current standard would cost more than £1m over the next two years.
The figure does not include any work to improve the homes.
The council says that even with that level of investment, the care homes are not currently fit for future use.
Councillor Robin Brown, cabinet member for health, said: "We are looking to consult on the future of these care homes as part of our overall plans to transform and improve accommodation-based care for older people over the next five years.
"No decision as to the future of these care homes has been made yet but it is clear that... their facilities are not currently suitable for the future care of older people."
He said the council was keen to consult with local people over any possible future plans for care.