diff --git a/hooks/nova_cc_utils.py b/hooks/nova_cc_utils.py
index 481ddc7b..b7abfef6 100644
--- a/hooks/nova_cc_utils.py
+++ b/hooks/nova_cc_utils.py
@@ -1575,6 +1575,17 @@ def determine_endpoints(public_url, internal_url, admin_url):
             'placement_admin_url': placement_admin_url,
             'placement_internal_url': placement_internal_url,
         })
+    else:
+        # NOTE(wolsen) drop placement endpoints when placement api is not
+        #  enabled. This prevents the ncc charm from overriding services
+        #  from placement in Train and newer. See LP#1928992
+        endpoints.update({
+            'placement_service': None,
+            'placement_region': None,
+            'placement_public_url': None,
+            'placement_admin_url': None,
+            'placement_internal_url': None,
+        })
 
     return endpoints
 
diff --git a/unit_tests/test_nova_cc_utils.py b/unit_tests/test_nova_cc_utils.py
index e1eff82b..08bb8ed0 100644
--- a/unit_tests/test_nova_cc_utils.py
+++ b/unit_tests/test_nova_cc_utils.py
@@ -96,7 +96,12 @@ BASE_ENDPOINTS = {
     's3_internal_url': 'http://foohost.com:3333',
     's3_public_url': 'http://foohost.com:3333',
     's3_region': 'RegionOne',
-    's3_service': 's3'
+    's3_service': 's3',
+    'placement_region': None,
+    'placement_service': None,
+    'placement_admin_url': None,
+    'placement_internal_url': None,
+    'placement_public_url': None,
 }
 
 QUEENS_ENDPOINTS = {
@@ -122,6 +127,29 @@ QUEENS_ENDPOINTS = {
     'placement_public_url': 'http://foohost.com:8778',
 }
 
+TRAIN_ENDPOINTS = {
+    'ec2_admin_url': None,
+    'ec2_internal_url': None,
+    'ec2_public_url': None,
+    'ec2_region': None,
+    'ec2_service': None,
+    'nova_admin_url': 'http://foohost.com:8774/v2.1',
+    'nova_internal_url': 'http://foohost.com:8774/v2.1',
+    'nova_public_url': 'http://foohost.com:8774/v2.1',
+    'nova_region': 'RegionOne',
+    'nova_service': 'nova',
+    's3_admin_url': None,
+    's3_internal_url': None,
+    's3_public_url': None,
+    's3_region': None,
+    's3_service': None,
+    'placement_region': None,
+    'placement_service': None,
+    'placement_admin_url': None,
+    'placement_internal_url': None,
+    'placement_public_url': None,
+}
+
 # Restart map should be constructed such that API services restart
 # before frontends (haproxy/apache) to avoid port conflicts.
 RESTART_MAP_ICEHOUSE = OrderedDict([
@@ -840,6 +868,15 @@ class NovaCCUtilsTests(CharmTestCase):
                                                         'http://foohost.com',
                                                         'http://foohost.com'))
 
+    def test_determine_endpoints_train(self):
+        # Having placement related w/ train disables placement_api
+        self.relation_ids.return_value = ['placement:1']
+        self.os_release.return_value = 'train'
+        self.assertEqual(
+            TRAIN_ENDPOINTS, utils.determine_endpoints('http://foohost.com',
+                                                       'http://foohost.com',
+                                                       'http://foohost.com'))
+
     @patch.object(utils, 'known_hosts')
     @patch('subprocess.check_output')
     def test_ssh_known_host_key(self, _check_output, _known_hosts):