karmalady
travelsafar
This horrid rise in fuel costs is one reason why I'm hoping to go into sheltered housing. There are other reasons too. But the thought of walking into a building which has radiators in all communal areas and corridors is very appealing, plus of course only having to heat a one bed flat instead of a large, chilly 3 bed house......watch this space. 
I friend is doing that. Her management charge will be £7000 pa. that amount will provide a huge amount of heating and the charge is not fixed, it can go up year on year
Are the flats where your friend is "extra-care", travelsofar, they are very expensive because 24-hour care is available. You pay even more if you use it. There are lots of facilities available and it's a half-way house that means a care-home can be put off for a while, if not completely.
Sheltered housing may have a manager (or warden), 24-hour emergency help through an alarm system, communal areas, such as gardens/lounges and social activities for residents.
Independant living will have similar services that take care of communal areas and alarm system but they may not have lounges, social activities or any on-site support.
As these names can overlap it's important to understand what you will get.
Most can be bought or rented from 55, but I have seen some new extra-care ones going up, in our nearby town, with an over 70 policy.