diff --git a/specklepy/objects/base.py b/specklepy/objects/base.py
index 1f0883a..d280bee 100644
--- a/specklepy/objects/base.py
+++ b/specklepy/objects/base.py
@@ -252,6 +252,9 @@ class Base(_RegisteringBase):
         if t is None:
             return value
 
+        if value is None:
+            return None
+
         if t.__module__ == "typing":
             origin = getattr(t, "__origin__")
             t = (
diff --git a/specklepy/serialization/base_object_serializer.py b/specklepy/serialization/base_object_serializer.py
index 9ab45dd..24516a0 100644
--- a/specklepy/serialization/base_object_serializer.py
+++ b/specklepy/serialization/base_object_serializer.py
@@ -60,8 +60,13 @@ class BaseObjectSerializer:
             chunkable = False
             detach = False
 
-            # skip nulls or props marked to be ignored with "__" or "_"
-            if value is None or prop.startswith(("__", "_")):
+            # skip props marked to be ignored with "__" or "_"
+            if prop.startswith(("__", "_")):
+                continue
+
+            # allow serialisation of nulls
+            if not value:
+                object_builder[prop] = value
                 continue
 
             # don't prepopulate id as this will mess up hashing