You can make them as attractive as you want but if they’re not cared for by low income residents as is the case in SO many parts of the US then what once was attractive wont be for long.
Just look at the trash that litters most public housing complexes. Ya think the residents care much?
In my town it’s the Habitats for Humanity houses that have trailer trash yards. Habitats should have some stipulation about yard upkeep.