diff --git a/api/barriers/serializers/data_workspace.py b/api/barriers/serializers/data_workspace.py
index 1ab4e86b..0075554b 100644
--- a/api/barriers/serializers/data_workspace.py
+++ b/api/barriers/serializers/data_workspace.py
@@ -194,6 +194,7 @@ class DataWorkspaceSerializer(AssessmentFieldsMixin, BarrierSerializerBase):
     reported_by = serializers.SerializerMethodField()
     barrier_owner = serializers.SerializerMethodField()
     first_published_on = serializers.SerializerMethodField()
+    set_to_allowed_on = serializers.SerializerMethodField()
 
     class Meta(BarrierSerializerBase.Meta):
         fields = (
@@ -243,6 +244,7 @@ class Meta(BarrierSerializerBase.Meta):
             "public_eligibility_summary",
             "public_eligibility_postponed",
             "first_published_on",
+            "set_to_allowed_on",
             "resolvability_assessments",
             "sectors",
             "sectors_affected",
@@ -553,3 +555,7 @@ def get_barrier_owner(self, obj):
     def get_first_published_on(self, obj):
         if hasattr(obj, "public_barrier"):
             return obj.public_barrier.first_published_on
+
+    def get_set_to_allowed_on(self, obj):
+        if hasattr(obj, "public_barrier"):
+            return obj.public_barrier.set_to_allowed_on