diff --git a/backend/domain/plan.py b/backend/domain/plan.py
index b14213c1..b3411b10 100644
--- a/backend/domain/plan.py
+++ b/backend/domain/plan.py
@@ -1,8 +1,9 @@
+from __future__ import annotations
 from datetime import datetime
 from typing import Optional
 
 from backend.app.db.models.portfolio import Epc
-from backend.app.db.models.recommendations import PlanTypeEnum
+from backend.app.db.models.recommendations import PlanModel, PlanTypeEnum, ScenarioModel
 from backend.domain.scenario import Scenario
 
 
@@ -28,3 +29,9 @@ class Plan:
     valuation_increase: Optional[float] = None
     cost_of_works: Optional[float] = None
     contingency_cost: Optional[float] = None
+
+    @classmethod
+    def from_sqlalchemy(
+        cls, plan_model: PlanModel, scenario_model: ScenarioModel
+    ) -> Plan:
+        raise NotImplementedError
diff --git a/backend/domain/scenario.py b/backend/domain/scenario.py
index 4a15fc09..f4d639cb 100644
--- a/backend/domain/scenario.py
+++ b/backend/domain/scenario.py
@@ -1,6 +1,9 @@
+from __future__ import annotations
 from datetime import datetime
 from typing import Optional
 
+from backend.app.db.models.recommendations import ScenarioModel
+
 
 class Scenario:
     name: str
@@ -44,3 +47,7 @@ class Scenario:
     valuation_return_on_ivestment: Optional[str] = None
     property_valuation_increase: Optional[float] = None
     labour_days: Optional[float] = None
+
+    @classmethod
+    def from_sqlalchemy(cls, scenario_model: ScenarioModel) -> Scenario:
+        raise NotImplementedError