diff --git a/Source/DTDLv2/RealEstateCore/Collection/Space-.json b/Source/DTDLv2/RealEstateCore/Collection/Space-.json
new file mode 100644
index 000000000..6ca1888c2
--- /dev/null
+++ b/Source/DTDLv2/RealEstateCore/Collection/Space-.json
@@ -0,0 +1,25 @@
+{
+  "@id": "dtmi:org:w3id:rec:SpaceCollection;1",
+  "@type": "Interface",
+  "contents": [
+    {
+      "@type": "Relationship",
+      "displayName": {
+        "en": "includes"
+      },
+      "name": "includes",
+      "target": "dtmi:org:w3id:rec:Space;1",
+      "writable": true
+    }
+  ],
+  "description": {
+    "en": "Grouping of any spaces."
+  },
+  "displayName": {
+    "en": "Space Collection"
+  },
+  "extends": "dtmi:org:w3id:rec:Collection;1",
+  "@context": [
+    "dtmi:dtdl:context;2"
+  ]
+}
\ No newline at end of file