diff --git a/src/Speckle.Objects/Interfaces.cs b/src/Speckle.Objects/Interfaces.cs
index 5d41a500..6a35fa30 100644
--- a/src/Speckle.Objects/Interfaces.cs
+++ b/src/Speckle.Objects/Interfaces.cs
@@ -2,6 +2,7 @@ using Speckle.Objects.Geometry;
 using Speckle.Objects.Other;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Models;
+using Speckle.Sdk.Models.Data;
 using Speckle.Sdk.Models.Proxies;
 
 namespace Speckle.Objects;
diff --git a/src/Speckle.Sdk/Models/Collections/RootCollection.cs b/src/Speckle.Sdk/Models/Collections/RootCollection.cs
index 7082ba6b..da7d204c 100644
--- a/src/Speckle.Sdk/Models/Collections/RootCollection.cs
+++ b/src/Speckle.Sdk/Models/Collections/RootCollection.cs
@@ -1,3 +1,4 @@
+using Speckle.Sdk.Models.Data;
 using Speckle.Sdk.Models.Proxies;
 
 namespace Speckle.Sdk.Models.Collections;
diff --git a/src/Speckle.Sdk/Models/Proxies/IProperties.cs b/src/Speckle.Sdk/Models/Data/IProperties.cs
similarity index 86%
rename from src/Speckle.Sdk/Models/Proxies/IProperties.cs
rename to src/Speckle.Sdk/Models/Data/IProperties.cs
index 1a1fc252..cf0e381c 100644
--- a/src/Speckle.Sdk/Models/Proxies/IProperties.cs
+++ b/src/Speckle.Sdk/Models/Data/IProperties.cs
@@ -1,4 +1,4 @@
-namespace Speckle.Sdk.Models.Proxies;
+namespace Speckle.Sdk.Models.Data;
 
 /// <summary>
 /// Specifies properties on objects to be used for data-based workflows.