greenkozi and Misha suggested this:
Trophies/Achievements/Badges for Home Street Projects! There could be numerous variations, such as an achievement for working on a certain number of projects, acheivements for working on specific types of projects (plot restoration, tree restoration etc.) and Trophies for top contributors. Gather each type of trophy to create the giant Home Street Restoration Trophy.
Think old Street Project rewards translated/adapted to Home Streets and you've got it.