diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_Network.py b/D03_PlanAnalysis/D03_PlanAnalysis_Network.py
index c7faafe1f..cce67c4a2 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_Network.py
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_Network.py
@@ -269,10 +269,13 @@ async def _load(connection: Any, project_id: UUID) -> tuple[dict[str, Any] | Non
     return legacy, legacy is not None
 
 
-def _view(network: dict[str, Any] | None, legacy: bool, base: dict[str, Any]) -> dict[str, Any]:
+def _view(
+    network: dict[str, Any] | None, legacy: bool, base: dict[str, Any], year_start: int | None
+) -> dict[str, Any]:
     return {
         "status": "success",
         "base": base,
+        "year_start": year_start,
         "network": network,
         "derived": derive(network) if network else None,
         "legacy": legacy,
@@ -284,8 +287,13 @@ async def get_plan_network(project_id: UUID) -> dict[str, Any]:
     base = await plan_base.load_base(project_id)
     async with get_db_pool().acquire() as connection:
         network, legacy = await _load(connection, project_id)
+        async with connection.cursor(aiomysql.DictCursor) as cursor:
+            await cursor.execute(
+                "SELECT project_year FROM projects WHERE id = %s", (str(project_id),)
+            )
+            row = await cursor.fetchone()
     try:
-        return _view(network, legacy, base)
+        return _view(network, legacy, base, row["project_year"] if row else None)
     except NetworkError as error:
         raise HTTPException(status_code=409, detail=f"저장된 노선이 틀립니다 — {error}") from error
 
@@ -425,4 +433,4 @@ async def put_plan_network(
         except Exception:
             await connection.rollback()
             raise
-    return {**_view(network, False, base), "derived": derived}
+    return {**_view(network, False, base, project["project_year"]), "derived": derived}
diff --git a/resources/tester/test_530_2_plan_analyze.py b/resources/tester/test_530_2_plan_analyze.py
index f5ef73635..d42ac5832 100644
--- a/resources/tester/test_530_2_plan_analyze.py
+++ b/resources/tester/test_530_2_plan_analyze.py
@@ -214,12 +214,13 @@ def test_get_saved_legacy_or_empty(client) -> None:
     client.db.answers["FROM plan_networks"] = [{"network_json": json.dumps(_network())}]
     got = client.get(URL).json()
     assert got["legacy"] is False and len(got["derived"]["pieces"]) == 3
-    assert got["base"]["end"] == {"x": 90.0, "y": 180.0}
+    assert got["base"]["end"] == {"x": 90.0, "y": 180.0} and got["year_start"] == 2026
 
 
 def test_put_stores_network_pieces_years(client) -> None:
     got = client.put(URL, json=_network())
     assert got.status_code == 200 and got.json()["derived"]["pieces"][1]["from_m"] == 75.0
+    assert got.json()["year_start"] == 2026
     log = client.db.log
     assert log[-1][0] == "COMMIT"
     pieces = [a for s, a in log if s.startswith("INSERT INTO plan_route_pieces")]