diff --git a/playbooks/inventory/group_vars/hosts.yml b/playbooks/inventory/group_vars/hosts.yml
index 93fa9ed103..7f969776f8 100644
--- a/playbooks/inventory/group_vars/hosts.yml
+++ b/playbooks/inventory/group_vars/hosts.yml
@@ -176,6 +176,9 @@ neutron_service_in_ldap: "{{ service_ldap_backend_enabled }}"
 neutron_rabbitmq_userid: neutron
 neutron_rabbitmq_vhost: /neutron
 
+# Neutron Plugins
+neutron_plugin_type: ml2.lxb
+
 
 ## Glance
 glance_service_port: 9292
@@ -233,6 +236,7 @@ horizon_enable_cinder_backup: "{% if cinder_service_backup_program_enabled is de
 horizon_enable_neutron_lbaas: "{% if neutron_plugin_base is defined and ('lbaas' in neutron_plugin_base or 'neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPlugin' in neutron_plugin_base) %}True{% else %}False{% endif %}"
 horizon_enable_neutron_fwaas: "{% if neutron_plugin_base is defined and 'firewall' in neutron_plugin_base %}True{% else %}False{% endif %}"
 horizon_enable_neutron_vpnaas: "{% if neutron_plugin_base is defined and 'vpnaas' in neutron_plugin_base %}True{% else %}False{% endif %}"
+horizon_enable_ha_router: "{% if 'ml2' in neutron_plugin_type and (groups['neutron_l3_agent'] | length >= 2) %}True{% else %}False{% endif %}"
 horizon_rabbitmq_userid: horizon
 horizon_rabbitmq_vhost: /horizon
 
diff --git a/releasenotes/notes/make-ha-router-a-toggle-9d87d688e8d506c9.yaml b/releasenotes/notes/make-ha-router-a-toggle-9d87d688e8d506c9.yaml
new file mode 100644
index 0000000000..8b9165fb55
--- /dev/null
+++ b/releasenotes/notes/make-ha-router-a-toggle-9d87d688e8d506c9.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - Neutron HA router capabilities in Horizon will be enabled automatically if
+    the neutron plugin type is ML2 and environment has >=2 L3 agent nodes.