diff --git a/Ontology/Willow/Capability/Parameter/Setpoint/Quantity/TemperatureSetpoint/Air/Zone Air/TargetZoneAirTemperatureSetpoint.json b/Ontology/Willow/Capability/Parameter/Setpoint/Quantity/TemperatureSetpoint/Air/Zone Air/TargetZoneAirTemperatureSetpoint.json
new file mode 100644
index 00000000..f88eb397
--- /dev/null
+++ b/Ontology/Willow/Capability/Parameter/Setpoint/Quantity/TemperatureSetpoint/Air/Zone Air/TargetZoneAirTemperatureSetpoint.json	
@@ -0,0 +1,16 @@
+{
+  "@id": "dtmi:com:willowinc:TargetZoneAirTemperatureSetpoint;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Target Zone Air Temperature Setpoint"
+  },
+  "description": {"en": "The central setpoint from which the other mode-specific setpoints, thresholds, and boundaries are derived."},
+  "extends" : [
+    "dtmi:com:willowinc:ZoneAirTemperatureSetpoint;1"
+  ],
+  "contents": [
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}