diff --git a/src/PepperDash.Essentials.Core/UDMApi/CustomProperties.cs b/src/PepperDash.Essentials.Core/UDMApi/CustomProperties.cs
new file mode 100644
index 00000000..c0d6abee
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/UDMApi/CustomProperties.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.Core.UDMApi
+{
+
+    internal class CustomProperties
+    {
+        [JsonProperty("label")]
+        public string label { get; set; }
+
+        [JsonProperty("value")]
+        public string value { get; set; }
+    }
+
+}
diff --git a/src/PepperDash.Essentials.Core/UDMApi/DeviceStatus.cs b/src/PepperDash.Essentials.Core/UDMApi/DeviceStatus.cs
new file mode 100644
index 00000000..b977f248
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/UDMApi/DeviceStatus.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.Core.UDMApi
+{
+    internal class DeviceStatus
+    {
+        [JsonProperty("label")]
+        public string label { get; set; }
+
+        [JsonProperty("status")]
+        public string status { get; set; }
+
+        [JsonProperty("description")]
+        public string description { get; set; }
+
+        [JsonProperty("videoSource")]
+        public string videoSource { get; set; }
+
+        [JsonProperty("audioSource")]
+        public string audioSource { get; set; }
+
+        [JsonProperty("usage")]
+        public int usage { get; set; }
+
+        [JsonProperty("error")]
+        public string error { get; set; }
+    }
+
+}
diff --git a/src/PepperDash.Essentials.Core/UDMApi/RoomResponse.cs b/src/PepperDash.Essentials.Core/UDMApi/RoomResponse.cs
new file mode 100644
index 00000000..f7ccd3bc
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/UDMApi/RoomResponse.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.Core.UDMApi
+{
+    /// <summary>
+    /// Represents the complete room response for UDM API
+    /// </summary>
+    internal class RoomResponse
+    {
+        public RoomResponse()
+        {
+            standard = new StandardProperties();
+            status = new StatusProperties();
+            custom = new Dictionary<string, CustomProperties>();
+        }
+
+        /// <summary>
+        /// API version string
+        /// </summary>
+        [JsonProperty("apiVersion")]
+        public string apiVersion { get; set; }
+
+        /// <summary>
+        /// Standard room properties
+        /// </summary>
+        [JsonProperty("standard")]
+        public StandardProperties standard { get; set; }
+
+        /// <summary>
+        /// Status information including devices
+        /// </summary>
+        [JsonProperty("status")]
+        public StatusProperties status { get; set; }
+
+        /// <summary>
+        /// Custom properties dictionary
+        /// </summary>
+        [JsonProperty("custom")]
+        public Dictionary<string, CustomProperties> custom { get; set; }
+    }
+
+    /// <summary>
+    /// Represents status properties including devices
+    /// </summary>
+    internal class StatusProperties
+    {
+        /// <summary>
+        /// Dictionary of device statuses keyed by device identifier
+        /// </summary>
+        [JsonProperty("devices")]
+        public Dictionary<string, DeviceStatus> devices { get; set; }
+
+        public StatusProperties()
+        {
+            devices = new Dictionary<string, DeviceStatus>();
+        }
+    }
+}
diff --git a/src/PepperDash.Essentials.Core/UDMApi/StandardProperties.cs b/src/PepperDash.Essentials.Core/UDMApi/StandardProperties.cs
new file mode 100644
index 00000000..801d484e
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/UDMApi/StandardProperties.cs
@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.Core.UDMApi
+{
+    internal class StandardProperties
+    {
+        [JsonProperty("version")]
+        public string version { get; set; }
+
+        [JsonProperty("state")]
+        public string state { get; set; }
+
+        [JsonProperty("error")]
+        public string error { get; set; }
+
+        [JsonProperty("occupancy")]
+        public bool occupancy { get; set; }
+
+        [JsonProperty("helpRequest")]
+        public string helpRequest { get; set; }
+
+        [JsonProperty("activity")]
+        public string activity { get; set; }
+    }
+
+}