add_random_internal_estate_building

add_random_internal_estate_building = {
	random_list = {
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = servants_quarters_01 }
			}
			add_domicile_building = servants_quarters_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = servants_quarters_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = library_01 }
			}
			add_domicile_building = library_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = library_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = bath_01 }
			}
			add_domicile_building = bath_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = bath_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = courtyard_01 }
			}
			add_domicile_building = courtyard_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = courtyard_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = prison_01 }
			}
			add_domicile_building = prison_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = prison_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = living_quarters_01 }
			}
			add_domicile_building = living_quarters_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = living_quarters_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = trophy_room_01 }
			}
			add_domicile_building = trophy_room_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = trophy_room_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = office_01 }
			}
			add_domicile_building = office_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = office_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = guest_room_01 }
			}
			add_domicile_building = guest_room_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = guest_room_02
			}
		}
		10 = {
			trigger = {
				NOT = { has_domicile_building_or_higher = wine_cellar_01 }
			}
			add_domicile_building = wine_cellar_01
			if = {
				limit = { has_domicile_building = estate_main_03 }
				add_domicile_building = wine_cellar_02
			}
		}
	}
}

As written in game/common/scripted_effects/07_dlc_ep3_scripted_effects.txt.