Bukkit

With the release of HeroStronghold v1.1.6, a new feature was implemented for limiting the number of regions of a type that player can build. For example:

peasant:
  priority: 1
  limits:
    shack: 1
    arrowturret: 2
citizen:
  priority: 2
  limits:
    shack: 2
    arrowturret: 5

This creates a permission node herostronghold.group.peasant that will limit that player so they can only build a maximum of 1 shack and 2 arrowturrets. Players still need herostronghold.create.shack to make shacks. If you don't set a limit for the group, it will not limit players in that group (so a peasant with herostronghold.create.landmine could still make as many landmines as they want). If a player has herostronghold.group.peasant and herostronghold.group.citizen it will only recognize the citizen limits because citizen has a higher priority than peasant.