diff --git a/backend/Property.py b/backend/Property.py
index b8563b87..1e241b04 100644
--- a/backend/Property.py
+++ b/backend/Property.py
@@ -478,26 +478,6 @@ class Property:
         for recommendation in recommendations:
             # For the list of recommendations we have, we iteratively update the output
 
-            # Update description to indicate it's insulate
-            if recommendation["type"] in [
-                "solid_floor_insulation",
-                "suspended_floor_insulation",
-                "exposed_floor_insulation",
-            ]:
-                if len(recommendation["parts"]) > 1:
-                    raise NotImplementedError(
-                        "Have more than 1 floor insulation part - handle this case"
-                    )
-
-                # We don't really see above average for this in the training data
-                output["floor_insulation_thickness_ending"] = "average"
-            else:
-                if output["floor_thermal_transmittance_ending"] is None:
-                    raise ValueError("We should not have a None value for the u value")
-
-                if output["floor_insulation_thickness_ending"] is None:
-                    output["floor_insulation_thickness_ending"] = "none"
-
             if recommendation["type"] == "sealing_open_fireplace":
                 output["number_open_fireplaces_ending"] = 0
 
@@ -542,6 +522,7 @@ class Property:
                 "heating", "hot_water_tank_insulation", "heating_control", "secondary_heating",
                 "internal_wall_insulation", "external_wall_insulation", "cavity_wall_insulation",
                 "cylinder_thermostat", "loft_insulation", "room_roof_insulation", "flat_roof_insulation",
+                "solid_floor_insulation", "suspended_floor_insulation",
             ]:
                 # We update the data, as defined in the recommendaton
                 if output["walls_insulation_thickness_ending"] is None:
@@ -556,6 +537,12 @@ class Property:
                 if output["roof_thermal_transmittance_ending"] is None:
                     raise ValueError("We should not have a None value for the u value")
 
+                if output["floor_thermal_transmittance_ending"] is None:
+                    raise ValueError("We should not have a None value for the u value")
+
+                if output["floor_insulation_thickness_ending"] is None:
+                    output["floor_insulation_thickness_ending"] = "none"
+
                 simulation_config = recommendation["simulation_config"]
                 # If any entries in simulation_config are None, we will set them to "Unknown" which is the cleaning
                 # value
@@ -572,7 +559,7 @@ class Property:
                 "sealing_open_fireplace", "low_energy_lighting",
                 "internal_wall_insulation", "external_wall_insulation", "cavity_wall_insulation",
                 "loft_insulation", "room_roof_insulation", "flat_roof_insulation",
-                "solid_floor_insulation", "suspended_floor_insulation", "exposed_floor_insulation",
+                "solid_floor_insulation", "suspended_floor_insulation",
                 "windows_glazing", "solar_pv", "heating", "hot_water_tank_insulation",
                 "heating_control", "secondary_heating", "cylinder_thermostat"
             ]:
diff --git a/recommendations/FloorRecommendations.py b/recommendations/FloorRecommendations.py
index 9faedb89..5a8ad242 100644
--- a/recommendations/FloorRecommendations.py
+++ b/recommendations/FloorRecommendations.py
@@ -8,9 +8,10 @@ from datatypes.enums import QuantityUnits
 from backend.Property import Property
 from recommendations.recommendation_utils import (
     r_value_per_mm_to_u_value, calculate_u_value_uplift, is_diminishing_returns, update_lowest_selected_u_value,
-    get_recommended_part, get_floor_u_value, override_costs
+    get_recommended_part, get_floor_u_value, override_costs, check_simulation_difference
 )
 from recommendations.Costs import Costs
+from etl.epc_clean.epc_attributes.FloorAttributes import FloorAttributes
 
 
 class FloorRecommendations(Definitions):
@@ -118,7 +119,7 @@ class FloorRecommendations(Definitions):
         if u_value < self.BUILDING_REGULATIONS_PART_L_MAX_U_VALUE:
             return
 
-        if self.property.floor["is_suspended"]:
+        if self.property.floor["is_suspended"] or self.property.floor["is_to_unheated_space"]:
             # Given the U-value, we recommend underfloor insulation
             self.recommend_floor_insulation(
                 phase=phase,
@@ -197,6 +198,8 @@ class FloorRecommendations(Definitions):
                         if already_installed:
                             cost_result = override_costs(cost_result)
 
+                        new_description = "Suspended, insulated"
+
                     elif material["type"] == "solid_floor_insulation":
                         cost_result = self.costs.solid_floor_insulation(
                             insulation_floor_area=self.property.insulation_floor_area,
@@ -207,9 +210,21 @@ class FloorRecommendations(Definitions):
                         already_installed = "solid_floor_insulation" in self.property.already_installed
                         if already_installed:
                             cost_result = override_costs(cost_result)
+
+                        new_description = "Solid, insulated"
                     else:
                         raise NotImplementedError("Implement me!")
 
+                    floor_ending_config = FloorAttributes(new_description).process()
+                    floor_simulation_config = check_simulation_difference(
+                        new_config=floor_ending_config, old_config=self.property.floor, prefix="floor_"
+                    )
+
+                    simulation_config = {
+                        **floor_simulation_config,
+                        "floor_thermal_transmittance_ending": new_u_value,
+                    }
+
                     self.recommendations.append(
                         {
                             "phase": phase,
@@ -227,6 +242,7 @@ class FloorRecommendations(Definitions):
                             "new_u_value": new_u_value,
                             "sap_points": None,
                             "already_installed": already_installed,
+                            "simulation_config": simulation_config,
                             "description_simulation": {
                                 "floor-description": "Solid, insulated" if
                                 material["type"] == "solid_floor_insulation"