diff --git a/etl/eligibility/Eligibility.py b/etl/eligibility/Eligibility.py
index bda34923..15e3158f 100644
--- a/etl/eligibility/Eligibility.py
+++ b/etl/eligibility/Eligibility.py
@@ -421,8 +421,19 @@ class Eligibility:
             }
             return
 
+        # Case 3 - cavity is suitable, loft is within 150mm, sap is good
+        if self.cavity["suitability"] and (self.loft["thickness"] <= 150) and (current_sap < 55):
+            self.eco4_warmfront = {
+                "eligible": True,
+                "strict": False,
+                "message": "Meets cavity, loft borderline, meets sap",
+                "cavity_type": self.cavity["type"],
+                "loft_type": self.loft["thickness_classification"]
+            }
+            return
+
         # Case 3 - cavity is suitable, loft is not, sap is good
-        if self.cavity["suitability"] and (self.loft["thickness"] > 100) and (current_sap < 55):
+        if self.cavity["suitability"] and (self.loft["thickness"] > 150) and (current_sap < 55):
             self.eco4_warmfront = {
                 "eligible": True,
                 "strict": False,
@@ -444,7 +455,7 @@ class Eligibility:
             return
 
         # Case 5 - cavity and loft suitable, sap too high
-        if self.cavity["suitability"] and (self.loft["thickness"] <= 100) and (current_sap >= 55):
+        if self.cavity["suitability"] and (self.loft["thickness"] <= 150) and (current_sap >= 55):
             self.eco4_warmfront = {
                 "eligible": True,
                 "strict": False,
@@ -470,7 +481,7 @@ class Eligibility:
             self.eco4_warmfront = {
                 "eligible": False,
                 "strict": False,
-                "message": "Fails cavity nd lodt, meets SAP",
+                "message": "Fails cavity and loft, meets SAP",
                 "cavity_type": self.cavity["type"],
                 "loft_type": self.loft["thickness_classification"]
             }