That sounds like you want a tax on communities, not a tax on land. Inasmuch as this is due to a location/group-based "neighbourhood value-add", it seems better

That sounds like you want a tax on communities, not a tax on land. Inasmuch as this is due to a location/group-based "neighbourhood value-add", it seems better to tax the neighbourhood as an organization than to tax the ground they happen to be on.