My father in law has done this in Dublin, he sold his house to DCC for 70% of its value. He is living in a senior apartment complex his rent is €40 a week which includes unlimited heating, he pays his own electric. Any issues he logs them with maintenance.
He has a weekly check in phone call, 24 hr panic button and a community of like minded neighbours, with a community room for social events. He comes and goes as he pleases to his gated complex. The apartment dies with him. Its been a fantastic scheme for him as a widower. Everyone living their is age 55+