diff --git a/src/economy.c b/src/economy.c
index f218c766c..9108d7aa1 100644
--- a/src/economy.c
+++ b/src/economy.c
@@ -1032,8 +1032,7 @@ static bool maintain(building * b, bool first)
     bool paid = true, work = first;
     unit *u;
 
-    if (fval(b, BLD_MAINTAINED) || b->type == NULL || b->type->maintenance == NULL
-        || is_cursed(b->attribs, C_NOCOST, 0)) {
+    if (fval(b, BLD_MAINTAINED) || b->type == NULL || b->type->maintenance == NULL || is_cursed(b->attribs, C_NOCOST, 0)) {
         fset(b, BLD_MAINTAINED);
         fset(b, BLD_WORKING);
         return true;
@@ -1042,6 +1041,58 @@ static bool maintain(building * b, bool first)
         return false;
     }
     u = building_owner(b);
+    if (u == NULL)
+        return false;
+    /* If the owner is the region owner, check if biggest castle has the dontpay flag */
+    if (check_param(global.parameters, "rules.region_owner_pay_building", b->type->_name)) {
+        if (u == building_owner(largestbuilding(r, &cmp_taxes, false))) {
+            if (fval(u->building, BLD_DONTPAY)) {
+                return false;
+            }
+        }
+    }
+  for (c = 0; b->type->maintenance[c].number; ++c) {
+    const maintenance *m = b->type->maintenance + c;
+    int need = m->number;
+
+    if (fval(m, MTF_VARIABLE))
+      need = need * b->size;
+    if (u) {
+      /* first ist im ersten versuch true, im zweiten aber false! Das
+       * bedeutet, das in der Runde in die Region geschafften Resourcen
+       * nicht genutzt werden können, weil die reserviert sind! */
+      if (!first)
+        need -= get_pooled(u, m->rtype, GET_ALL, need);
+      else
+        need -= get_pooled(u, m->rtype, GET_DEFAULT, need);
+      if (!first && need > 0) {
+        unit *ua;
+        for (ua = r->units; ua; ua = ua->next)
+          freset(ua->faction, FFL_SELECT);
+        fset(u->faction, FFL_SELECT);   /* hat schon */
+        for (ua = r->units; ua; ua = ua->next) {
+          if (!fval(ua->faction, FFL_SELECT) && (ua->faction == u->faction
+              || alliedunit(ua, u->faction, HELP_MONEY))) {
+            need -= get_pooled(ua, m->rtype, GET_ALL, need);
+            fset(ua->faction, FFL_SELECT);
+            if (need <= 0)
+              break;
+          }
+        }
+      }
+      if (need > 0) {
+        if (!fval(m, MTF_VITAL))
+          work = false;
+        else {
+          paid = false;
+          break;
+        }
+      }
+    }
+    if (fval(b, BLD_DONTPAY)) {
+        return false;
+    }
+    u = building_owner(b);
     if (u == NULL)
         return false;
     for (c = 0; b->type->maintenance[c].number; ++c) {
diff --git a/src/kernel/building.c b/src/kernel/building.c
index d638819e4..1fd0b5efa 100644
--- a/src/kernel/building.c
+++ b/src/kernel/building.c
@@ -586,7 +586,6 @@ void building_set_owner(struct unit * owner)
 static unit *building_owner_ex(const building * bld, const struct faction * last_owner)
 {
   unit *u, *heir = 0;
-
   /* Eigentümer tot oder kein Eigentümer vorhanden. Erste lebende Einheit
     * nehmen. */
   for (u = bld->region->units; u; u = u->next) {
@@ -602,11 +601,25 @@ static unit *building_owner_ex(const building * bld, const struct faction * last
       }
     }
   }
-  return heir;
+    if (!heir && check_param(global.parameters, "rules.region_owner_pay_building", bld->type->_name)) {
+        if (rule_region_owners()) {
+            u = building_owner(largestbuilding(bld->region, &cmp_taxes, false));
+        }
+        else {
+            u = building_owner(largestbuilding(bld->region, &cmp_wage, false));
+        }
+        if (u) {
+            heir = u;
+        }
+    }
+    return heir;
 }
 
 unit *building_owner(const building * bld)
 {
+  if (!bld) {
+		return NULL;
+	}
   unit *owner = bld->_owner;
   if (!owner || (owner->building!=bld || owner->number<=0)) {
     unit * heir = building_owner_ex(bld, owner?owner->faction:0);
diff --git a/src/kernel/config.c b/src/kernel/config.c
index 4773faf96..c542bfa59 100644
--- a/src/kernel/config.c
+++ b/src/kernel/config.c
@@ -1538,8 +1538,10 @@ int lighthouse_range(const building * b, const faction * f)
             int c = 0;
             unit *u;
             for (u = r->units; u; u = u->next) {
-                if (u->building == b) {
-                    c += u->number;
+                if (u->building == b || u == building_owner(b)) {
+                    if (u->building == b) {
+                        c += u->number;
+                    }
                     if (c > buildingcapacity(b))
                         break;
                     if (f == NULL || u->faction == f) {
@@ -1882,6 +1884,27 @@ int get_param_int(const struct param *p, const char *key, int def)
     return str ? atoi(str) : def;
 }
 
+int check_param(const struct param *p, const char *key, const char *searchvalue)
+{
+    const char *value = get_param(p, key);
+    if (!value) {
+        return 0;
+    }
+    char *p_value = malloc(sizeof(char)* (strlen(value) + 1));
+    strcpy(p_value, value);
+    const char *delimiter = " ,;";
+    char *v = strtok(p_value, delimiter);
+
+    while (v != NULL) {
+        if (strcmp(v, searchvalue) == 0)
+        {
+            return 1;
+        }
+        v = strtok(NULL, delimiter);
+    }
+    return 0;
+}
+
 static const char *g_datadir;
 const char *datapath(void)
 {
diff --git a/src/kernel/config.h b/src/kernel/config.h
index 352c9dcb6..4a1f23e25 100644
--- a/src/kernel/config.h
+++ b/src/kernel/config.h
@@ -389,10 +389,11 @@ extern "C" {
 
     const char *dbrace(const struct race *rc);
 
-    void set_param(struct param **p, const char *name, const char *data);
-    const char *get_param(const struct param *p, const char *name);
-    int get_param_int(const struct param *p, const char *name, int def);
-    float get_param_flt(const struct param *p, const char *name, float def);
+    void set_param(struct param **p, const char *key, const char *data);
+    const char *get_param(const struct param *p, const char *key);
+    int get_param_int(const struct param *p, const char *key, int def);
+    int check_param(const struct param *p, const char *key, const char *searchvalue);
+    float get_param_flt(const struct param *p, const char *key, float def);
 
     bool ExpensiveMigrants(void);
     int NMRTimeout(void);
diff --git a/src/kernel/reports.c b/src/kernel/reports.c
index d9a5d0a41..8758e9c97 100644
--- a/src/kernel/reports.c
+++ b/src/kernel/reports.c
@@ -1497,6 +1497,7 @@ static void prepare_reports(void)
 {
   region *r;
   faction *f;
+  building *b;
   const struct building_type *bt_lighthouse = bt_find("lighthouse");
 
   for (f = factions; f; f = f->next) {
@@ -1521,20 +1522,42 @@ static void prepare_reports(void)
       }
     }
 
-    for (u = r->units; u; u = u->next) {
-      if (u->building && u->building->type == bt_lighthouse) {
-        /* we are in a lighthouse. add the regions we can see from here! */
-        prepare_lighthouse(u->building, u->faction);
-      }
-
-      if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
-        if (fval(u, UFL_DISBELIEVES)) {
-          add_seen(u->faction->seen, r, see_unit, true);
-        } else {
-          add_seen(u->faction->seen, r, see_unit, false);
+        /* Region owner get always the Lighthouse report */
+        if (check_param(global.parameters, "rules.region_owner_pay_building", bt_lighthouse->_name)) {
+            for (b = rbuildings(r); b; b = b->next) {
+                if (b && b->type == bt_lighthouse) {
+                    u = building_owner(b);
+                    if (u) {
+                        prepare_lighthouse(b, u->faction);
+                        if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
+                            if (fval(u, UFL_DISBELIEVES)) {
+                                add_seen(u->faction->seen, r, see_unit, true);
+                            }
+                            else {
+                                add_seen(u->faction->seen, r, see_unit, false);
+                            }
+                        }
+                    }
+                }
+            }
         }
-      }
-    }
+
+        for (u = r->units; u; u = u->next) {
+            if (u->building && u->building->type == bt_lighthouse) {
+                /* we are in a lighthouse. add the regions we can see from here! */
+                prepare_lighthouse(u->building, u->faction);
+            }
+
+            if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
+                if (fval(u, UFL_DISBELIEVES)) {
+                    add_seen(u->faction->seen, r, see_unit, true);
+                }
+                else {
+                    add_seen(u->faction->seen, r, see_unit, false);
+                }
+            }
+        }
+
 
     if (fval(r, RF_TRAVELUNIT)) {
       for (ru = a_find(r->attribs, &at_travelunit);