diff --git a/controller/binding.c b/controller/binding.c
index bfdeb99b9..d3fe127f7 100644
--- a/controller/binding.c
+++ b/controller/binding.c
@@ -2934,6 +2934,16 @@ consider_patch_port_for_local_datapaths(const struct sbrec_port_binding *pb,
                 b_ctx_out->tracked_dp_bindings);
         }
     }
+
+    if (sbrec_port_binding_is_updated(pb, SBREC_PORT_BINDING_COL_TYPE) &&
+       (pb->chassis == b_ctx_in->chassis_rec ||
+            is_additional_chassis(pb, b_ctx_in->chassis_rec))) {
+        remove_local_lports(pb->logical_port, b_ctx_out);
+        release_lport(pb, b_ctx_in->chassis_rec,
+                             !b_ctx_in->ovnsb_idl_txn,
+                             b_ctx_out->tracked_dp_bindings,
+                             b_ctx_out->if_mgr);
+    }
 }
 
 static bool
diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index 854d80bdf..a10f1af8a 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -2312,9 +2312,16 @@ ct_zones_runtime_data_handler(struct engine_node *node, void *data)
                 && strcmp(t_lport->pb->type, "localnet")) {
                 /* We allocate zone-id's only to VIF, localport, l3gateway,
                  * and localnet lports. */
+                if (sbrec_port_binding_is_updated(t_lport->pb,
+                                              SBREC_PORT_BINDING_COL_TYPE)) {
+                    updated |= ct_zone_handle_port_update(&ct_zones_data->ctx,
+                                               t_lport->pb,
+                                               false, &scan_start,
+                                               min_ct_zone, max_ct_zone);
+                }
+
                 continue;
             }
-
             bool port_updated =
                     t_lport->tracked_type == TRACKED_RESOURCE_NEW ||
                     t_lport->tracked_type == TRACKED_RESOURCE_UPDATED;
diff --git a/tests/ovn.at b/tests/ovn.at
index 50c9f04da..4d9beea1b 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -38924,3 +38924,145 @@ OVN_CHECK_PACKETS([hv/vif1-tx.pcap], [expected-vif1])
 
 AT_CLEANUP
 ])
+
+OVN_FOR_EACH_NORTHD([
+AT_SETUP([ct_zones])
+AT_KEYWORDS([ct_zones])
+
+ovn_start
+
+net_add n1
+for i in 1 2; do
+    check ovn-nbctl ls-add ls${i}
+    ovn-nbctl lsp-add ls${i} lsp${i}
+    sim_add hv$i
+    as hv$i
+    ovs-vsctl add-br br-phys
+    ovn_attach n1 br-phys 192.168.0.$i
+    ovs-vsctl -- add-port br-int vif${i} -- set Interface vif${i} external-ids:iface-id=lsp${i}
+done
+
+check ovn-nbctl lr-add r1
+check ovn-nbctl lrp-add r1 r1-ls1 f0:00:00:00:00:01 192.168.2.1/24 \
+                -- lsp-add ls1 ls1-r1 \
+                -- set Logical_Switch_Port ls1-r1 type=router options:router-port=r1-ls1 addresses=router
+
+check ovn-nbctl lrp-add r1 r1-ls2 f0:00:00:00:00:02 192.168.3.1/24 \
+                -- lsp-add ls2 ls2-r1 \
+                -- set Logical_Switch_Port ls2-r1 type=router options:router-port=r1-ls2 addresses=router
+
+check ovn-nbctl --wait=hv sync
+
+AS_BOX([With patch ports])
+zone_list_hv1=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv1" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+ls2_dnat ??
+ls2_snat ??
+lsp1 ??
+r1_dnat ??
+r1_snat ??
+])
+
+zone_list_hv2=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv2" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+ls2_dnat ??
+ls2_snat ??
+lsp2 ??
+r1_dnat ??
+r1_snat ??
+])
+
+AS_BOX([With patch ports after recompute])
+check as hv1 ovn-appctl -t ovn-controller inc-engine/recompute
+check as hv2 ovn-appctl -t ovn-controller inc-engine/recompute
+zone_list_hv1_after_recompute=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+zone_list_hv2_after_recompute=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([test "X$zone_list_hv1" = "X$zone_list_hv1_after_recompute"])
+AT_CHECK([test "X$zone_list_hv2" = "X$zone_list_hv2_after_recompute"])
+
+AS_BOX([With l3gw in hv2])
+check ovn-nbctl --wait=hv set Logical_Router r1 options:chassis=hv2
+# ls2 should now only be a local datapath in hv2.
+# However, ovn-controller does not remove datapath from list of ldp when needed, so ls2 is still seen as local in hv1.
+zone_list_hv1=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv1" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+ls2_dnat ??
+ls2_snat ??
+lsp1 ??
+r1_dnat ??
+r1_snat ??
+])
+
+# l3gw ports should have ct_zones allocated
+zone_list_hv2=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv2" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1-r1 ??
+ls1_dnat ??
+ls1_snat ??
+ls2-r1 ??
+ls2_dnat ??
+ls2_snat ??
+lsp2 ??
+r1-ls1 ??
+r1-ls2 ??
+r1_dnat ??
+r1_snat ??
+])
+
+AS_BOX([With l3gw ports after recompute])
+check as hv1 ovn-appctl -t ovn-controller inc-engine/recompute
+check as hv2 ovn-appctl -t ovn-controller inc-engine/recompute
+
+# ls2 not in hv1 after recompute, as expected
+zone_list_hv1_after_recompute=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv1_after_recompute" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+lsp1 ??
+])
+
+zone_list_hv2_after_recompute=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([test "X$zone_list_hv2" = "X$zone_list_hv2_after_recompute"])
+
+AS_BOX([With patch ports again])
+check ovn-nbctl --wait=hv remove Logical_Router r1 options chassis=hv2
+zone_list_hv1=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv1" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+ls2_dnat ??
+ls2_snat ??
+lsp1 ??
+r1_dnat ??
+r1_snat ??
+])
+
+zone_list_hv2=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([echo "$zone_list_hv2" | sed "s/ [[0-9]]*/ ??/" | sort], [0], [dnl
+ls1_dnat ??
+ls1_snat ??
+ls2_dnat ??
+ls2_snat ??
+lsp2 ??
+r1_dnat ??
+r1_snat ??
+])
+
+check as hv1 ovn-appctl -t ovn-controller inc-engine/recompute
+check as hv2 ovn-appctl -t ovn-controller inc-engine/recompute
+AS_BOX([With patch ports after recompute])
+zone_list_hv1_after_recompute=$(as hv1 ovn-appctl -t ovn-controller ct-zone-list | sort)
+zone_list_hv2_after_recompute=$(as hv2 ovn-appctl -t ovn-controller ct-zone-list | sort)
+AT_CHECK([test "X$zone_list_hv1" = "X$zone_list_hv1_after_recompute"])
+AT_CHECK([test "X$zone_list_hv2" = "X$zone_list_hv2_after_recompute"])
+
+OVN_CLEANUP([hv1],[hv2])
+
+AT_CLEANUP
+])
