diff --git a/backend/app/db/functions/recommendations_functions.py b/backend/app/db/functions/recommendations_functions.py
index 7ff09f22..b03909ee 100644
--- a/backend/app/db/functions/recommendations_functions.py
+++ b/backend/app/db/functions/recommendations_functions.py
@@ -33,6 +33,12 @@ def create_scenario(session: Session, scenario):
     :param scenario: dictionary of data representing a scenario to be created
     """
     try:
+
+        # Before creating a new scenario, we check if there is a scenario for this portfolio id already
+        # If there is, it means that any new scnario created will NOT be the default scenario
+        existing_scenario = session.query(Scenario).filter_by(portfolio_id=scenario["portfolio_id"]).first()
+        scenario["is_default"] = True if not existing_scenario else False
+
         new_scenario = Scenario(**scenario)
         session.add(new_scenario)
         session.flush()
diff --git a/backend/app/db/models/recommendations.py b/backend/app/db/models/recommendations.py
index ed3f326e..a1743436 100644
--- a/backend/app/db/models/recommendations.py
+++ b/backend/app/db/models/recommendations.py
@@ -85,6 +85,7 @@ class Scenario(Base):
     non_invasive_recommendations_file_path = Column(String)
     exclusions = Column(String)
     multi_plan = Column(Boolean, default=False)
+    is_default = Column(Boolean, default=False, nullable=False)
 
     # Add in the fields we need, which were previously sitting at the portfolio level
     cost = Column(Float)
@@ -107,3 +108,5 @@ class Scenario(Base):
     cost_per_co2_saved = Column(String)
     cost_per_sap_point = Column(String)
     valuation_return_on_investment = Column(String)
+    property_valuation_increase = Column(Float)
+    labour_days = Column(Float)