diff --git a/A00_Common/design/design_pipe_ids.ts b/A00_Common/design/design_pipe_ids.ts
index 1c8a2cf10..05228a613 100644
--- a/A00_Common/design/design_pipe_ids.ts
+++ b/A00_Common/design/design_pipe_ids.ts
@@ -129,3 +129,17 @@ export function followMovedPipe(projectId: string | null, fromM: number, toM: nu
     { partKey: picked.partKey },
   );
 }
+
+/** 종단 측점 하나를 지움(513-3 · 우클릭 「배관 · 구조물 삭제」 종단 · 평면 공용) — 측점 id = 주인 · `주인:역할`
+ *  (`plannedIrregular`) · 관 기준 측점 = 그 자리 · 관 구간 끝 = 관 자리 · 그 밖 = 구조물 id(좌측 칸 [삭제]와 같은 길). */
+export function removeStationOwner(
+  station: { id: string; chainage_m: number },
+  pipe: boolean,
+  remove: { pipe: (chainageM: number) => void; structure: (structureId: string) => void },
+): void {
+  if (pipe) return remove.pipe(station.chainage_m);
+  const owner = station.id.replace(/:(start|end)$/, "");
+  const at = pipeChainageOf(owner);
+  if (at !== null) remove.pipe(at);
+  else remove.structure(owner);
+}
diff --git a/A00_Common/design/design_view_profile.ts b/A00_Common/design/design_view_profile.ts
index bf8e88b5e..4aa105054 100644
--- a/A00_Common/design/design_view_profile.ts
+++ b/A00_Common/design/design_view_profile.ts
@@ -66,7 +66,7 @@ import "../../B05_Profile/B05_Profile_UI_Style.css";
 import "../../B05_Profile/B05_Profile_UI_Style_Table.css";
 import "../../B05_Profile/B05_Profile_UI_Style_Drainage.css";
 import "../../B05_Profile/B05_Profile_UI_Style_Structures.css";
-import { pipeIdAt } from "./design_pipe_ids";
+import { pipeIdAt, removeStationOwner } from "./design_pipe_ids";
 import { useDesignStore } from "./design_store";
 import { pageSettingsPanelValues } from "../../B05_Profile/B05_Profile_UI_Page_Latest";
 import { setPlusStations } from "../../common_util/common_util_structure_station";
@@ -194,9 +194,12 @@ export async function mountProfileView(
       onStructureMove: (from, to, station) => {
         if (isPipeStation(station)) profilePanel.drainage.movePipe(from, to);
       },
-      onStructureRemove: (station) => {
-        if (isPipeStation(station)) profilePanel.drainage.removePipe(station.chainage_m);
-      },
+      // 우클릭 삭제 — 관 = 관 지점 정본 · 그 밖 = 좌측 칸 [삭제]와 같은 길(513-3)
+      onStructureRemove: (station) =>
+        removeStationOwner(station, isPipeStation(station), {
+          pipe: (chainage) => profilePanel.drainage.removePipe(chainage),
+          structure: (structureId) => panel.structures.removeById(structureId),
+        }),
       // 우클릭 [배관 추가] — 사이드 폼에 종류·측점을 실어 주고 [추가]로 확정(2026-08-18).
       onPipeAdd: (chainage) => panel.structures.addAt(chainage, "pipe"),
       onStructureAdd: (chainage, type) =>
diff --git a/B05_Profile/B05_Profile_UI_RouteEdit.ts b/B05_Profile/B05_Profile_UI_RouteEdit.ts
index fc9e6b628..85faf4c1d 100644
--- a/B05_Profile/B05_Profile_UI_RouteEdit.ts
+++ b/B05_Profile/B05_Profile_UI_RouteEdit.ts
@@ -28,6 +28,7 @@ import {
   createSheetFollow,
   fetchRouteSheets,
   loadRouteEditBackground,
+  contourHintText,
   type RouteEditContours,
   type SheetLayers,
 } from "./B05_Profile_UI_RouteEdit_Contour";
@@ -39,7 +40,7 @@ import {
 } from "./B05_Profile_Api_Replan";
 import { bindRouteApply } from "./B05_Profile_UI_RouteEdit_Apply";
 import type { EditedCurve, EditedNode } from "./logic/B05_Profile_UI_RouteEdit_Curve";
-import { drawRouteEditScene, polylineLengthM, watchTheme } from "./B05_Profile_UI_RouteEdit_Render";
+import { drawRouteEditScene, routeHeadText, watchTheme } from "./B05_Profile_UI_RouteEdit_Render";
 import { bindNodeSplice, bindRouteEditNavigation } from "./B05_Profile_UI_RouteEdit_Input";
 import { bindRouteEditPointer } from "./B05_Profile_UI_RouteEdit_Pointer";
 import { createCrossPreview } from "./B05_Profile_UI_RouteEdit_Cross";
@@ -372,19 +373,10 @@ export async function mountRouteEditor(
     nodeInfo = built.nodes;
   }
 
-  /** 상태줄 머리 — 지금 그려진 계획노선 길이와 노드 수(계획서 0-9 ①). 원호가 정점으로
-   *  펴져 있어 브라우저에서 바로 잴 수 있다 — 서버에 묻지 않는다. */
+  /** 상태줄 머리 · 고른 등고선 글 — 짓기는 `_Render` · `_Contour` 몫. */
   const routeHead = (): string =>
-    `예상노선 ${polylineLengthM(expected).toFixed(1)}m · ` +
-    `계획노선 ${polylineLengthM(plannedLine.length ? plannedLine : planned).toFixed(1)}m · ` +
-    `노드 ${planned.length}개`;
-
-  /** 고른 등고선의 높이 — 못 읽었으면 높이 없이 「고른 등고선」만(계획서 0-9 ⑦). */
-  const contourHint = (): string => {
-    if (pickedContour < 0) return "등고선을 누르면 그 줄의 높이가 보입니다.";
-    const level = contours?.layer.features[pickedContour]?.labelValue ?? null;
-    return level === null ? "등고선 한 줄을 골랐습니다." : `고른 등고선 ${level}m.`;
-  };
+    routeHeadText(expected, plannedLine.length ? plannedLine : planned, planned.length);
+  const contourHint = (): string => contourHintText(contours, pickedContour);
 
   /** 상태줄 꼬리 — 셈은 `_Edits` 몫. */
   const curveHint = (): string =>
diff --git a/B05_Profile/B05_Profile_UI_RouteEdit_Contour.ts b/B05_Profile/B05_Profile_UI_RouteEdit_Contour.ts
index 1ae97349d..84796ff7d 100644
--- a/B05_Profile/B05_Profile_UI_RouteEdit_Contour.ts
+++ b/B05_Profile/B05_Profile_UI_RouteEdit_Contour.ts
@@ -48,6 +48,13 @@ export interface RouteEditContours {
   minor: (() => PreparedLayer) | null;
 }
 
+/** 고른 등고선의 높이 — 못 읽었으면 높이 없이 「고른 등고선」만(계획서 0-9 ⑦). */
+export function contourHintText(contours: RouteEditContours | null, picked: number): string {
+  if (picked < 0) return "등고선을 누르면 그 줄의 높이가 보입니다.";
+  const level = contours?.layer.features[picked]?.labelValue ?? null;
+  return level === null ? "등고선 한 줄을 골랐습니다." : `고른 등고선 ${level}m.`;
+}
+
 interface ContourResponse {
   contours: Array<{ level: number; coordinates: Array<[number, number, number]> }>;
 }
diff --git a/B05_Profile/B05_Profile_UI_RouteEdit_Render.ts b/B05_Profile/B05_Profile_UI_RouteEdit_Render.ts
index 6aedb6f1f..2f1658c37 100644
--- a/B05_Profile/B05_Profile_UI_RouteEdit_Render.ts
+++ b/B05_Profile/B05_Profile_UI_RouteEdit_Render.ts
@@ -66,6 +66,16 @@ export function polylineLengthM(points: ReadonlyArray<Vertex>): number {
   return total;
 }
 
+/** 상태줄 머리 — 지금 그려진 계획노선 길이와 노드 수(계획서 0-9 ①). 원호가 정점으로
+ *  펴져 있어 브라우저에서 바로 잴 수 있다 — 서버에 묻지 않는다. */
+export const routeHeadText = (
+  expected: ReadonlyArray<Vertex>,
+  line: ReadonlyArray<Vertex>,
+  nodeCount: number,
+): string =>
+  `예상노선 ${polylineLengthM(expected).toFixed(1)}m · ` +
+  `계획노선 ${polylineLengthM(line).toFixed(1)}m · 노드 ${nodeCount}개`;
+
 export interface RouteEditScene {
   view: ViewState;
   /** 사업지 좌표(m) → 캔버스 px. */
diff --git a/B06_Section/B06_Section_UI_Section_View_Profile.ts b/B06_Section/B06_Section_UI_Section_View_Profile.ts
index b1a9bf0b2..71b5e9c2b 100644
--- a/B06_Section/B06_Section_UI_Section_View_Profile.ts
+++ b/B06_Section/B06_Section_UI_Section_View_Profile.ts
@@ -24,6 +24,7 @@ import {
 } from "../A00_Common/design/design_selection";
 import { paintMapPick } from "../A00_Common/design/design_pick_profile";
 import { ESCAPE_FROM } from "../A00_Common/design/design_pick_escape";
+import { removeStationOwner } from "../A00_Common/design/design_pipe_ids";
 import { plantsStation } from "../B05_Profile/B05_Profile_UI_Profile_Structures";
 import {
   fetchLatestRoute,
@@ -156,7 +157,12 @@ export function createSectionProfile(
             if (isPipeStation(station)) host.edit()?.movePipe(from, to);
           },
           onStructureRemove: (station) => {
-            if (isPipeStation(station)) host.edit()?.removePipe(station.chainage_m);
+            const edit = host.edit();
+            if (edit)
+              removeStationOwner(station, isPipeStation(station), {
+                pipe: edit.removePipe,
+                structure: edit.removeStructure,
+              });
           },
           onPipeAdd: (chainage) => host.edit()?.addPipe(chainage),
           onStructureAdd: (chainage, type) =>
diff --git a/resources/tester/helper_513_3_remove_station_owner.cjs b/resources/tester/helper_513_3_remove_station_owner.cjs
new file mode 100644
index 000000000..c1fdc5d9d
--- /dev/null
+++ b/resources/tester/helper_513_3_remove_station_owner.cjs
@@ -0,0 +1,38 @@
+/* 513-3 우클릭 「구조물 삭제」 관 아닌 구조물도(요구 327-1) — `design_pipe_ids.removeStationOwner` 를 Node 로
+ * 돌려 JSON 한 줄(`test_513_3_remove_station_owner.py` 가 판정). 관 장부 · 고름은 가짜 · 주인 가르기는 진짜.
+ *   node helper_513_3_remove_station_owner.cjs
+ */
+const path = require("path");
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
+
+const BOOK = { next: 4, ids: [{ id: "pipe-s3", at: 55 }] };
+const STUBS = {
+  "../b_page_state": { readState: () => BOOK, writeState() {} },
+  "./design_selection": {
+    PIPE_MATCH_M: 0.51,
+    isNear: () => false,
+    nearestWithin: () => null,
+    readSelection: () => null,
+    selectDesign() {},
+  },
+  common_util_pick_tag: { setPipeTagSource() {} },
+};
+const { loadTs } = makeLoader({ root: path.join(__dirname, "..", ".."), stubs: STUBS });
+const ids = loadTs(path.join(__dirname, "..", "..", "A00_Common", "design", "design_pipe_ids.ts"));
+ids.usePipeIds("p1");
+
+const calls = [];
+const remove = {
+  pipe: (m) => calls.push(["pipe", m]),
+  structure: (id) => calls.push(["structure", id]),
+};
+const cases = [
+  [{ id: "pipe-s1", chainage_m: 40 }, true], // 관 기준 측점
+  [{ id: "wall-7", chainage_m: 80 }, false], // 구조물 기준 측점
+  [{ id: "wall-8:start", chainage_m: 100 }, false], // 구간 구조물 시작
+  [{ id: "wall-8:end", chainage_m: 130 }, false], // 구간 구조물 끝
+  [{ id: "pipe-s3:end", chainage_m: 60 }, false], // 관 구간 끝 = 장부 자리
+  [{ id: "pipe-12.50:start", chainage_m: 10 }, false], // 옛 자리 이름 관
+];
+for (const [station, pipe] of cases) ids.removeStationOwner(station, pipe, remove);
+process.stdout.write(JSON.stringify({ calls }));
diff --git a/resources/tester/test_513_3_remove_station_owner.py b/resources/tester/test_513_3_remove_station_owner.py
new file mode 100644
index 000000000..84769522c
--- /dev/null
+++ b/resources/tester/test_513_3_remove_station_owner.py
@@ -0,0 +1,44 @@
+"""513-3 종단 · 평면 우클릭 「구조물 삭제」 관 아닌 구조물도(요구 327-1) — 측점 주인을 갈라 관 = 관 지점 정본 ·
+그 밖 = 좌측 칸 [삭제]와 같은 `removeById`(공용 `removeStationOwner`).
+
+TS 셈은 `helper_513_3_remove_station_owner.cjs`(Node · 주인 가르기는 진짜).
+
+    ./venv/Scripts/python.exe -m pytest resources/tester/test_513_3_remove_station_owner.py -q
+"""
+
+import json
+import subprocess
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+HELPER = Path(__file__).with_name("helper_513_3_remove_station_owner.cjs")
+
+
+def test_주인대로_지움() -> None:
+    run = subprocess.run(  # noqa: S603 — 고정 실행 파일
+        ["node", str(HELPER)],
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+        timeout=120,
+    )
+    assert run.returncode == 0, run.stderr
+    assert json.loads(run.stdout)["calls"] == [
+        ["pipe", 40],
+        ["structure", "wall-7"],
+        ["structure", "wall-8"],
+        ["structure", "wall-8"],
+        ["pipe", 55],
+        ["pipe", 12.5],
+    ]
+
+
+def test_두_보기_배선() -> None:
+    view = (ROOT / "A00_Common" / "design" / "design_view_profile.ts").read_text(encoding="utf-8")
+    assert "removeStationOwner(station, isPipeStation(station)" in view
+    assert "panel.structures.removeById(structureId)" in view
+    cross = (ROOT / "B06_Section" / "B06_Section_UI_Section_View_Profile.ts").read_text(
+        encoding="utf-8"
+    )
+    assert "removeStationOwner(station, isPipeStation(station)" in cross
+    assert "structure: edit.removeStructure" in cross