local_guild_reward_effect

local_guild_reward_effect = {
	switch = {
		trigger = scope:local_guild_scope
		1 = { add_building = watermills_01 }
		2 = { add_building = windmills_01 }
		3 = { add_building = common_tradeport_01 }
		4 = { add_building = pastures_01 }
		5 = { add_building = pastures_01 }
		6 = { add_building = pastures_01 }
		7 = { add_building = pastures_01 }
		8 = { add_building = hunting_grounds_01 }
		9 = { add_building = hunting_grounds_01 }
		10 = { add_building = hunting_grounds_01 }
		11 = { add_building = orchards_01 }
		12 = { add_building = logging_camps_01 }
		13 = { add_building = quarries_01 }
		14 = { add_building = quarries_01 }
		15 = { add_building = smiths_01 }
		16 = { add_building = stables_01 }
		17 = { add_building = guild_halls_01 }
		18 = { add_building = hospices_01 }
		19 = { add_building = hospices_01 }
		20 = { add_building = workshops_01 }
	}
}

As written in game/common/scripted_effects/00_wanderer_lifestyle_effects.txt.