diff --git a/model_data/recommendations/WallRecommendations.py b/model_data/recommendations/WallRecommendations.py
index 7cad0cca..a5df28bb 100644
--- a/model_data/recommendations/WallRecommendations.py
+++ b/model_data/recommendations/WallRecommendations.py
@@ -11,7 +11,7 @@ external_wall_insulation_parts = [
         # -slab-ewi-render-fire/
         "type": "external_wall_insulation",
         "description": "Mineral Wool External Wall Insulation",
-        "depths": [30, 50, 70, 80, 90, 100],
+        "depths": [30, 50, 70, 80, 90, 100, 150, 200],
         "depth_unit": "mm",
         "cost": None,
         "cost_unit": None,
@@ -89,22 +89,24 @@ external_wall_insulation_parts = [
     }
 ]
 
-wall_parts = [
+internal_wall_insulation_parts = [
     {
-        "id": 1,
         "type": "internal_wall_insulation",
         "description": "Internal wall insulation",
-        "depth": None,
+        "depths": [30, 50, 70, 80, 90, 100, 150],
         "depth_unit": "mm",
         "cost": None,
+        "cost_unit": None,
         # The u-value here is just a placehoder for now and we probably want to have multiple
         # options for internal wall insulation (e.g. 50mm, 100mm, 150mm), with different material types
         # and costs
-        "u_value": 0.3
-    },
-
+        "r_value_per_mm": 0.0278,
+        "r_value_unit": "m2K/W"
+    }
 ]
 
+wall_parts = external_wall_insulation_parts + internal_wall_insulation_parts
+
 
 class WallRecommendations:
     YEAR_WALLS_BUILT_WITH_INSULATION = 1990
@@ -174,6 +176,32 @@ class WallRecommendations:
                             }
                         )
 
+        if is_solid_brick:
+
+            # This is an estimated figure based on industry standards
+            u_value = self.DEFAULT_U_VALUES["solid_brick"]
+
+            # Recommend external and internal wall insulation
+            parts = [
+                part for part in wall_parts if part["type"] in ["external_wall_insulation", "internal_wall_insulation"]
+            ]
+            for part in parts:
+
+                for depth in part["depths"]:
+                    part_u_value = self.r_value_per_mm_to_u_value(depth, part["r_value_per_mm"])
+
+                    _, new_u_value = self.calculate_u_value_uplift(u_value, part_u_value)
+                    new_u_value = round(new_u_value, 2)
+
+                    # We allow a small tolerance for error so we don't discount the recommendation entirely
+                    # if it's close, since this is an estimated new u-value
+                    if new_u_value - self.U_VALUE_ERROR <= self.BUILDING_REGULATIONS_PART_L_MAX_U_VALUE:
+                        self.recommendations.append(
+                            {
+                                **part, "new_u_value": new_u_value,
+                            }
+                        )
+
         raise NotImplementedError("Not implemented yet")
 
     @staticmethod