I would really suggest to develop some kind of status for guilds, let\'s say neutral, holly order linked to a god, good, bad, evil, nasty.....
And let\'s say if a guild builds it\'s house near a town, the town is then influenced by it, graphically : nasty guild would make the grass a bit chaotik, maybe birds will fly around, a bit creepy you know...
and on the opposite the good guils would \"print\" their ambience on the field, wealthy towns and so on
what do you think ?