diff --git a/Src/Notion.Client/Models/PropertyItems/RollupPropertyItem.cs b/Src/Notion.Client/Models/PropertyItems/RollupPropertyItem.cs
new file mode 100644
index 00000000..3df75fd7
--- /dev/null
+++ b/Src/Notion.Client/Models/PropertyItems/RollupPropertyItem.cs
@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class RollupPropertyItem : SimplePropertyItem
+    {
+        public override string Type => "rollup";
+
+        [JsonProperty("rollup")] public Data Rollup { get; set; }
+
+        public class Data
+        {
+            [JsonProperty("type")] public string Type { get; set; }
+
+            [JsonProperty("function")] public string Function { get; set; }
+
+            [JsonProperty("number")] public double? Number { get; set; }
+
+            [JsonProperty("date")] public Date Date { get; set; }
+
+            [JsonProperty("array")] public IEnumerable<Dictionary<string, object>> Array { get; set; }
+
+            [JsonProperty("unsupported")] public Dictionary<string, object> Unsupported { get; set; }
+
+            [JsonProperty("incomplete")] public Dictionary<string, object> Incomplete { get; set; }
+        }
+    }
+}
diff --git a/Src/Notion.Client/Models/PropertyItems/SimplePropertyItem.cs b/Src/Notion.Client/Models/PropertyItems/SimplePropertyItem.cs
index da753319..50d95184 100644
--- a/Src/Notion.Client/Models/PropertyItems/SimplePropertyItem.cs
+++ b/Src/Notion.Client/Models/PropertyItems/SimplePropertyItem.cs
@@ -8,6 +8,7 @@ namespace Notion.Client
     [JsonSubtypes.KnownSubType(typeof(UrlPropertyItem), "url")]
     [JsonSubtypes.KnownSubType(typeof(SelectPropertyItem), "select")]
     [JsonSubtypes.KnownSubType(typeof(MultiSelectPropertyItem), "multi_select")]
+    [JsonSubtypes.KnownSubType(typeof(StatusPropertyItem), "status")]
     [JsonSubtypes.KnownSubType(typeof(DatePropertyItem), "date")]
     [JsonSubtypes.KnownSubType(typeof(EmailPropertyItem), "email")]
     [JsonSubtypes.KnownSubType(typeof(PhoneNumberPropertyItem), "phone_number")]
@@ -22,6 +23,7 @@ namespace Notion.Client
     [JsonSubtypes.KnownSubType(typeof(RichTextPropertyItem), "rich_text")]
     [JsonSubtypes.KnownSubType(typeof(PeoplePropertyItem), "people")]
     [JsonSubtypes.KnownSubType(typeof(RelationPropertyItem), "relation")]
+    [JsonSubtypes.KnownSubType(typeof(RollupPropertyItem), "rollup")]
     public abstract class SimplePropertyItem : IPropertyItemObject
     {
         public string Object => "property_item";
diff --git a/Src/Notion.Client/Models/PropertyItems/StatusPropertyItem.cs b/Src/Notion.Client/Models/PropertyItems/StatusPropertyItem.cs
new file mode 100644
index 00000000..46e70108
--- /dev/null
+++ b/Src/Notion.Client/Models/PropertyItems/StatusPropertyItem.cs
@@ -0,0 +1,11 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class StatusPropertyItem : SimplePropertyItem
+    {
+        public override string Type => "status";
+
+        [JsonProperty("status")] public SelectOption Status { get; set; }
+    }
+}