There is now lots of information available about how good design can support people with dementia and mobility problems.
Shelter must be suitable for all weather conditions – but it still has to be open to the elements to some extent, so it doesn’t feel like just another indoor space.
Consider different areas for different purposes and social situations: perhaps one space where lots of people can gather, along with other smaller spaces that can be quieter.
Watch out for distances from the garden car park to the garden shelter.
Toilets must be accessible and open. This is essential!
Ideally, paths should lead people through a garden. Walking along a well-designed path is a joy in itself.