I know of several retirement villages. The first one in the country, ewas Hartrigg Oaks, in York, built by the Joseph Rowntree Trust over 20 years ago. I have a friend who lives there.
It incorporates a care home, but as it is situated in a village with shops and other services, doesn't have a shop, but it incorporates a care home and a very active village community.
Locally to us, in a country village there is a large - and expensive retirement village built about 10 years ago. It has a shop that acts as the village shop, a care home, gym and lots of facilities open to the wider community. It runs a regular minibus service to the local town.
There are a number of similar developments all around the country and several retirement home companies, like Audley, specialise in building retirement villages.