diff --git a/.idea/Model.iml b/.idea/Model.iml
index 3a3ec5a2..4413bb06 100644
--- a/.idea/Model.iml
+++ b/.idea/Model.iml
@@ -7,7 +7,7 @@
       <sourceFolder url="file://$MODULE_DIR$/open_uprn" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/recommendations" isTestSource="false" />
     </content>
-    <orderEntry type="jdk" jdkName="ha_15_32_eligibility" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.10 (backend)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="PyNamespacePackagesService">
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 605a6457..6f308057 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,7 +3,7 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.10 (backend)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="ha_15_32_eligibility" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.10 (backend)" project-jdk-type="Python SDK" />
   <component name="PythonCompatibilityInspectionAdvertiser">
     <option name="version" value="3" />
   </component>
diff --git a/backend/Property.py b/backend/Property.py
index 705ad361..bb545248 100644
--- a/backend/Property.py
+++ b/backend/Property.py
@@ -1,6 +1,8 @@
 from datetime import datetime
 import re
 import os
+
+import numpy as np
 import pandas as pd
 
 from etl.epc.DataProcessor import DataProcessor
@@ -820,7 +822,25 @@ class Property(Definitions):
         """
 
         if self.data["fixed-lighting-outlets-count"] == "":
-            self.number_lighting_outlets = round(cleaned_property_data["FIXED_LIGHTING_OUTLETS_COUNT"].values[0])
+
+            # We check old EPCs and the full SAP EPC
+
+            lighting_data = []
+
+            if len(self.old_data):
+                lighting_data.extend([
+                    int(x["fixed-lighting-outlets-count"]) for x in self.old_data if
+                    x["fixed-lighting-outlets-count"] != ""
+                ])
+
+            if len(self.full_sap_epc):
+                if self.full_sap_epc["fixed-lighting-outlets-count"] != "":
+                    lighting_data.append(int(self.full_sap_epc["fixed-lighting-outlets-count"]))
+
+            if lighting_data:
+                self.number_lighting_outlets = round(np.median(lighting_data))
+            else:
+                self.number_lighting_outlets = round(cleaned_property_data["FIXED_LIGHTING_OUTLETS_COUNT"].values[0])
         else:
             self.number_lighting_outlets = float(self.data["fixed-lighting-outlets-count"])
 
diff --git a/backend/app/plan/router.py b/backend/app/plan/router.py
index b5acb3c0..7a6df2da 100644
--- a/backend/app/plan/router.py
+++ b/backend/app/plan/router.py
@@ -478,9 +478,13 @@ async def trigger_plan(body: PlanTriggerRequest):
             recommendations[property_id] = property_recommendations
 
             # For expected adjust energy, we don't include mechanical ventilation so we'll add it back on
-            expected_adjusted_energy = expected_adjusted_energy + representative_rec_data[
+            mechanical_ventilation_rec = representative_rec_data[
                 representative_rec_data["type"] == "mechanical_ventilation"
-                ]["heat_demand"].values[0]
+                ]
+            if not mechanical_ventilation_rec.empty:
+                expected_adjusted_energy = (
+                    expected_adjusted_energy + mechanical_ventilation_rec["heat_demand"].values[0]
+                )
 
             property_instance.set_adjusted_energy(
                 current_adjusted_energy=current_adjusted_energy,
diff --git a/backend/ml_models/Valuation.py b/backend/ml_models/Valuation.py
index 522a7067..f5a7e2bb 100644
--- a/backend/ml_models/Valuation.py
+++ b/backend/ml_models/Valuation.py
@@ -19,6 +19,7 @@ class PropertyValuation:
         100070505235: 344000,  # Based on Zoopla's estimation of 131 School road, which is also semi-detached
         100070513306: 182000,  # Based on Zoopla's estimation of 61 Simmons Drive
         100071306896: 77000,  # Based on Flat 2 of 44 Wedgewood Road on Zoopla
+        100021192109: 650000  # Based on Zoopla
     }
 
     # We base our valuation uplifts on a number of sources
diff --git a/recommendations/Recommendations.py b/recommendations/Recommendations.py
index a169b788..60cdb696 100644
--- a/recommendations/Recommendations.py
+++ b/recommendations/Recommendations.py
@@ -61,9 +61,11 @@ class Recommendations:
             property_recommendations.append(self.roof_recommender.recommendations)
 
         # Ventilation recommendations
-        self.ventilation_recomender.recommend()
-        if self.ventilation_recomender.recommendation:
-            property_recommendations.append(self.ventilation_recomender.recommendation)
+        # We only produce a ventilation recommendation if the property is recommended to have wall or roof insulation
+        if self.wall_recomender.recommendations or self.roof_recommender.recommendations:
+            self.ventilation_recomender.recommend()
+            if self.ventilation_recomender.recommendation:
+                property_recommendations.append(self.ventilation_recomender.recommendation)
 
         # Fireplace sealing recommendations
         self.fireplace_recommender.recommend()