diff --git a/demo/smoke_feedback_v2.mjs b/demo/smoke_feedback_v2.mjs
index f19b4c78..80a64924 100644
--- a/demo/smoke_feedback_v2.mjs
+++ b/demo/smoke_feedback_v2.mjs
@@ -14,7 +14,8 @@ const res = await page.evaluate(async () => {
   out.gearReadable = cs ? parseFloat(cs.fontSize) > 0 && cs.pointerEvents === 'auto' : null;
   out.gearHasLabel = btn ? btn.textContent.trim().length > 0 : null;
   const box = btn?.getBoundingClientRect();
-  // (в редакторе плана .dev скрыты display:none — сравнивать не с чем)
+  // (маркеры устройств в редакторе плана — неинтерактивные ориентиры #687,
+  // кнопку с ними не сравниваем)
   out.gearTapTarget = box ? box.height > 6 && box.height < 40 : null;
   btn.dispatchEvent(new MouseEvent('click', { bubbles: true, composed: true }));
   await c.updateComplete;
diff --git a/demo/smoke_plan_device_landmarks.mjs b/demo/smoke_plan_device_landmarks.mjs
new file mode 100644
index 00000000..6c53e753
--- /dev/null
+++ b/demo/smoke_plan_device_landmarks.mjs
@@ -0,0 +1,211 @@
+// #687: in the Plan editor device markers are landmarks exactly as in the
+// Background editor (#362) — the same markers as View, at the Background
+// editor's effective opacity, and fully pointer-inert so every Plan tool
+// receives the point below them. Room labels (same .devlayer) stay opaque.
+import { launch, checkAll, finish } from './serve.mjs';
+const { page, browser } = await launch();
+
+const probe = await page.evaluate(async () => {
+  const out = {};
+  const c = window.__card;
+  const sr = () => c.shadowRoot || c.renderRoot;
+  const settleMode = async () => {
+    const started = performance.now();
+    do { await new Promise((resolve) => requestAnimationFrame(resolve)); }
+    while (c._modeTransitionBusy && performance.now() - started < 1500);
+    await c.updateComplete;
+  };
+  // Entering a mode settles the camera after the stage resizes; wait until
+  // marker positions hold still so measured points are the clicked points.
+  const layoutKey = () => [...sr().querySelectorAll('.devlayer [data-hp="device"]')]
+    .map((node) => { const r = node.getBoundingClientRect(); return `${r.left.toFixed(1)},${r.top.toFixed(1)}`; })
+    .join('|');
+  const enter = async (mode) => {
+    c._setMode(mode, false);
+    await settleMode();
+    const started = performance.now();
+    let key = layoutKey(), still = 0;
+    while (still < 10 && performance.now() - started < 3000) {
+      await new Promise((resolve) => requestAnimationFrame(resolve));
+      const next = layoutKey();
+      still = next === key ? still + 1 : 0;
+      key = next;
+    }
+    await c.updateComplete;
+  };
+  const stage = () => sr().querySelector('.stage');
+  const markers = () => [...sr().querySelectorAll('.devlayer [data-hp="device"]')];
+  const visible = (node) => {
+    const r = node.getBoundingClientRect();
+    return getComputedStyle(node).display !== 'none' && r.width > 0 && r.height > 0;
+  };
+  const visibleIds = () => markers().filter(visible).map((node) => node.dataset.id).sort();
+  // Effective alpha of one marker: its own and every ancestor's opacity and
+  // filter: opacity(), up to and including the stage.
+  const effectiveOpacity = (node) => {
+    let alpha = 1;
+    for (let el = node; el; el = el.parentElement) {
+      const cs = getComputedStyle(el);
+      alpha *= Number(cs.opacity);
+      for (const m of cs.filter.matchAll(/opacity\(([^)]+)\)/g)) alpha *= Number(m[1]);
+      if (el === stage()) break;
+    }
+    return alpha;
+  };
+  const opacityById = () => Object.fromEntries(markers().filter(visible)
+    .map((node) => [node.dataset.id, effectiveOpacity(node)]));
+
+  // One unavailable marker exercises contract item 2: the fade multiplies
+  // the marker's own opacity (.unavail) exactly as the Background layer does.
+  const target = markers().find((node) => node.dataset.entity && c.hass.states[node.dataset.entity]);
+  if (target) {
+    const entity = target.dataset.entity;
+    c.hass = { ...c.hass, states: { ...c.hass.states,
+      [entity]: { ...c.hass.states[entity], state: 'unavailable' } } };
+    await c.updateComplete;
+  }
+  await enter('view');
+  out.unavailableMarkerInView = !!sr().querySelector('.devlayer [data-hp="device"].unavail');
+  const viewIds = visibleIds();
+  out.viewHasMarkers = viewIds.length > 0;
+  await enter('decor');
+  const decorOpacity = opacityById();
+  await enter('plan');
+  const planIds = visibleIds();
+  const planOpacity = opacityById();
+
+  // AC1 — the same markers as View, each at the Background editor's alpha.
+  out.planShowsViewMarkers = JSON.stringify(planIds) === JSON.stringify(viewIds);
+  out.planOpacityMatchesBackground = planIds.length > 0 && planIds.every((id) =>
+    id in decorOpacity && Math.abs(planOpacity[id] - decorOpacity[id]) < 1e-3);
+  const plain = markers().find((node) => visible(node) && !node.classList.contains('unavail'));
+  out.planPlainMarkerAt35 = !!plain && Math.abs(planOpacity[plain.dataset.id] - 0.35) < 1e-3;
+  const unavail = markers().find((node) => visible(node) && node.classList.contains('unavail'));
+  out.planUnavailableMarkerAt35x35 = !!unavail
+    && Math.abs(planOpacity[unavail.dataset.id] - 0.35 * 0.35) < 1e-3;
+  // Room labels share .devlayer: no layer fade reaches them (their own
+  // opacity is the label design, not this contract).
+  const label = sr().querySelector('.roomlabel');
+  out.roomLabelNotFaded = !!label
+    && Math.abs(effectiveOpacity(label) - Number(getComputedStyle(label).opacity)) < 1e-3
+    && !/opacity\(/.test(getComputedStyle(label).filter);
+  out.planMarkersOutOfTabOrder = markers().every((node) => !node.hasAttribute('tabindex')
+    && !node.hasAttribute('role'));
+
+  // AC2 — pick a marker wholly inside the stage, preferring a value capsule
+  // that extends outside the marker's nominal box.
+  const s = stage().getBoundingClientRect();
+  const inside = markers().filter((node) => {
+    const r = node.getBoundingClientRect();
+    return visible(node) && r.left > s.left + 4 && r.right < s.right - 4
+      && r.top > s.top + 4 && r.bottom < s.bottom - 4;
+  });
+  const at = (p) => p ? sr().elementFromPoint(p.x, p.y) : null;
+  const centre = (node) => {
+    const b = node.getBoundingClientRect();
+    return { x: b.left + b.width / 2, y: b.top + b.height / 2 };
+  };
+  // Room chrome lying under a marker keeps the hit (the demo plan puts a
+  // marker over a room's settings button).
+  const roomChrome = '.roomlabel, [data-hp="room-settings"]';
+  const overLabel = inside.find((node) => at(centre(node))?.closest?.(roomChrome));
+  out.roomChromeUnderMarkerGetsHit = !!overLabel;
+  const gearPoint = overLabel && at(centre(overLabel))?.closest?.('[data-hp="room-settings"]')
+    ? centre(overLabel) : null;
+  // The tool probe lies over bare plan, so the Walls tool owns the point;
+  // prefer a value capsule that extends outside the marker's nominal box.
+  const overPlan = inside.filter((node) => !at(centre(node))?.closest?.('.devlayer'));
+  const dev = overPlan.find((node) => node.classList.contains('valonly')
+    || node.querySelector('.device-shell.with-values')) || overPlan[0];
+  const frame = dev?.querySelector('.device-shell-frame');
+  const r = dev?.getBoundingClientRect();
+  const fr = frame?.getBoundingClientRect();
+  const core = dev ? centre(dev) : null;
+  const capsule = fr && fr.right > r.right + 2
+    ? { x: fr.right - 1, y: fr.top + fr.height / 2 } : core;
+  out.probeFound = !!dev && !!core;
+  out.probeHasOutsideCapsule = !!fr && fr.right > r.right + 2;
+  const cursorAt = (p) => { const t = at(p); return t ? getComputedStyle(t).cursor : null; };
+  const hit = { core: at(core), capsule: at(capsule) };
+  const cursor = { core: cursorAt(core), capsule: cursorAt(capsule) };
+  out.coreFallsThrough = !!hit.core && !hit.core.closest('.dev');
+  out.capsuleFallsThrough = !!hit.capsule && !hit.capsule.closest('.dev');
+  out.markerSubtreeIsPointerInert = !!dev && !!frame
+    && getComputedStyle(dev).pointerEvents === 'none'
+    && getComputedStyle(dev, '::before').pointerEvents === 'none'
+    && getComputedStyle(frame).pointerEvents === 'none'
+    && [...dev.querySelectorAll('*')].every((el) => getComputedStyle(el).pointerEvents === 'none');
+  // "The cursor over a marker is the cursor of what lies below": the same
+  // point with the marker taken out of layout gives the same target/cursor.
+  if (dev) {
+    dev.style.display = 'none';
+    out.targetSameWithoutMarker = at(core) === hit.core && at(capsule) === hit.capsule;
+    out.cursorSameWithoutMarker = cursorAt(core) === cursor.core && cursorAt(capsule) === cursor.capsule;
+    dev.style.display = '';
+  }
+
+  c._tool = 'draw'; c._path = []; c._cursorPt = null;
+  await c.updateComplete;
+  return { out, core, id: dev?.dataset.id, gearPoint };
+});
+
+// A real mouse click on the marker core reaches the Walls tool. It runs
+// before the synthetic probes below, which leave pointer state behind.
+if (probe.core) await page.mouse.click(probe.core.x, probe.core.y);
+
+// A real click on a marker lying over a room's settings button opens the
+// room dialog: the button below owns the point.
+if (probe.gearPoint) await page.mouse.click(probe.gearPoint.x, probe.gearPoint.y);
+const gear = await page.evaluate(async () => {
+  const c = window.__card;
+  await c.updateComplete;
+  const opened = c._roomDialog === true && !!c._roomEditId;
+  if (opened) { c._roomDialogCancel(); await c.updateComplete; }
+  return { roomSettingsOpenThroughMarker: opened };
+});
+
+const inert = await page.evaluate(async ({ core, id }) => {
+  const out = {};
+  const c = window.__card;
+  const sr = () => c.shadowRoot || c.renderRoot;
+  await c.updateComplete;
+  out.wallsToolReceivesClickThroughMarker = c._path.length === 1;
+  c._path = []; c._cursorPt = null;
+  await c.updateComplete;
+  const dev = [...sr().querySelectorAll('.devlayer [data-hp="device"]')].find((node) => node.dataset.id === id);
+  const r = dev?.getBoundingClientRect();
+  // The click above must have landed on the probed marker.
+  out.probeDidNotMove = !!r && !!core
+    && Math.abs(r.left + r.width / 2 - core.x) < 1 && Math.abs(r.top + r.height / 2 - core.y) < 1;
+  // Handlers fail closed even when events are dispatched on the marker itself.
+  let serviceCalls = 0, wsCalls = 0;
+  const oldCallService = c.hass.callService;
+  const oldCallWS = c.hass.callWS;
+  c.hass.callService = () => { serviceCalls += 1; };
+  c.hass.callWS = async () => { wsCalls += 1; return { ok: true }; };
+  const before = { tip: c._tip, info: c._infoCard, drag: c._deviceDrag, sel: c._selId };
+  const opts = { bubbles: true, composed: true, cancelable: true, clientX: core?.x || 0, clientY: core?.y || 0 };
+  dev?.dispatchEvent(new PointerEvent('pointerover', { ...opts, pointerId: 687, pointerType: 'mouse', isPrimary: true }));
+  dev?.dispatchEvent(new PointerEvent('pointermove', { ...opts, pointerId: 687, pointerType: 'mouse', isPrimary: true }));
+  dev?.dispatchEvent(new PointerEvent('pointerdown', { ...opts, pointerId: 688, pointerType: 'mouse', button: 0, isPrimary: true }));
+  dev?.dispatchEvent(new PointerEvent('pointerup', { ...opts, pointerId: 688, pointerType: 'mouse', button: 0, isPrimary: true }));
+  dev?.dispatchEvent(new MouseEvent('click', { ...opts, button: 0 }));
+  const ctx = new MouseEvent('contextmenu', { ...opts, button: 2 });
+  dev?.dispatchEvent(ctx);
+  await c.updateComplete;
+  out.handlersFailClosed = serviceCalls === 0 && wsCalls === 0
+    && c._tip === before.tip && c._infoCard === before.info
+    && c._deviceDrag === before.drag && c._selId === before.sel;
+  out.noDeviceHoverAttribute = !sr().querySelector('.dev[data-hp-device-hover]');
+  out.contextMenuNotClaimed = !ctx.defaultPrevented;
+  c.hass.callService = oldCallService;
+  c.hass.callWS = oldCallWS;
+  c._pointers?.clear?.(); c._panStart = null; c._panLock = null;
+  c._path = []; c._cursorPt = null;
+  await c.updateComplete;
+  return out;
+}, { core: probe.core, id: probe.id });
+
+const res = { ...probe.out, ...gear, ...inert };
+checkAll(res);
+await finish(browser, res);
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index fd54e0b6..166edac1 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -6,6 +6,11 @@
   focus frame when it receives focus; it can still be reached with Tab and
   followed with Enter or Space
   ([#686](https://github.com/Matysh/houseplan-card/issues/686)).
+- The Plan editor now shows device markers as translucent landmarks, exactly as
+  the Background editor does: the same markers as View at 35% opacity. They
+  never react to clicks, hover or the cursor, so every Plan tool, room label and
+  room settings button works through them
+  ([#687](https://github.com/Matysh/houseplan-card/issues/687)).
 
 ## v1.78.0-beta.7 — 2026-09-28
 
diff --git a/docs/CHANGELOG.ru.md b/docs/CHANGELOG.ru.md
index f762841b..fcf8f2e7 100755
--- a/docs/CHANGELOG.ru.md
+++ b/docs/CHANGELOG.ru.md
@@ -12,6 +12,11 @@
   фокуса браузера; до неё по-прежнему можно дойти клавишей Tab и перейти по
   Enter или Пробелу
   ([#686](https://github.com/Matysh/houseplan-card/issues/686)).
+- Редактор плана теперь показывает значки устройств полупрозрачными ориентирами —
+  так же, как редактор подложки: те же значки, что в просмотре, с
+  непрозрачностью 35 %. Они не реагируют на клики, наведение и курсор, поэтому
+  все инструменты плана, подписи комнат и кнопки настроек комнат работают сквозь
+  них ([#687](https://github.com/Matysh/houseplan-card/issues/687)).
 
 ## v1.78.0-beta.7 — 2026-09-28
 
diff --git a/docs/DECOR-EDITOR.md b/docs/DECOR-EDITOR.md
index 44c11463..070f975a 100644
--- a/docs/DECOR-EDITOR.md
+++ b/docs/DECOR-EDITOR.md
@@ -22,7 +22,7 @@ light routing, device state or Home Assistant actions.
 | Scale | Corner drag preserves aspect ratio. Hold `Shift` for independent axes. Furniture and custom images also have four one-axis middle handles and may cross the fixed edge to mirror. |
 | Rotation | Ordinary decor uses 5° steps by default and `Shift` for free rotation. Furniture and custom images are free by default and `Shift` snaps to 45°. Lines use endpoint handles instead of a rotation handle. |
 | Magnet targets | Only other decor objects and room contours: corners, edge centres, centres and edges. The image, devices and openings are excluded. |
-| Context emphasis | Decor and its editing chrome stay fully opaque. Rooms, labels, devices, openings, positive-thickness walls and solid/dashed zero-thickness walls are contextual only and render at 35% opacity. The whole device presentation (core, ring, capsule, values and badges) is pointer-inert: it never hovers, opens, acts or drags, and the active Background tool receives a press through it. |
+| Context emphasis | Decor and its editing chrome stay fully opaque. Rooms, labels, devices, openings, positive-thickness walls and solid/dashed zero-thickness walls are contextual only and render at 35% opacity. The whole device presentation (core, ring, capsule, values and badges) is pointer-inert: it never hovers, opens, acts or drags, and the active Background tool receives a press through it. The Plan editor shows devices the same way, as a per-marker 35% fade because room labels share the layer there (#687, `UX-MODES.md` › Plan). |
 | View composition | All decor kinds form one layer above room/data fills, room hover fill, opening-tunnel fills and Glow base. Live Glow, sun, physical walls, opening symbols, devices and room labels remain above decor. The plan image remains below it (§3.3). |
 | Compatibility | Legacy `width`, text `size/scale` and `plan_scale` remain readable. New writes use `width_cm`, `size_cm` and `plan_scale_x/y`. |
 
diff --git a/docs/USER-GUIDE.ru.md b/docs/USER-GUIDE.ru.md
index f5c7d5e9..5eaa85e6 100644
--- a/docs/USER-GUIDE.ru.md
+++ b/docs/USER-GUIDE.ru.md
@@ -258,7 +258,7 @@ Escape сначала отменяет активный диалог, меню,
 | Режим | Основное назначение | Устройства | Комнаты/стены | Декор и проёмы |
 |---|---|---|---|---|
 | Просмотр | Контроль дома | Интерактивны; видны состояния, значения и подсказки | Комната подсвечивается при наведении; подсказка показывает название, чистую площадь, температуру, влажность и LQI | Видны, если не скрыты настройками пространства; проёмы не реагируют на клик, кроме значка замка |
-| Редактор плана | Геометрия комнат, стен и проёмов | Скрыты | Интерактивны; видны кнопки настроек комнат, размеры и сетка | Проёмы всегда видны и редактируются; стены нулевой толщины рисуются полностью по оси |
+| Редактор плана | Геометрия комнат, стен и проёмов | Не редактируются и полупрозрачны, как в редакторе подложки; клики и наведение проходят к инструментам плана | Интерактивны; видны кнопки настроек комнат, размеры и сетка | Проёмы всегда видны и редактируются; стены нулевой толщины рисуются полностью по оси |
 | Редактор устройств | Позиции и параметры маркеров | Перетаскиваются; клик открывает настройки; доступны скрытые маркеры | Не редактируются | Служат фоном |
 | Редактор подложки | Изображение, линии, фигуры, текст, мебель | Не редактируются и полупрозрачны | Комнаты и все стены полупрозрачны | Декор интерактивен и непрозрачен; скрытый в просмотре декор всё равно виден здесь |
 | Киоск | Настенный экран | Интерактивны как в просмотре | Только отображение | Только отображение; редакторы отсутствуют |
diff --git a/docs/UX-MODES.md b/docs/UX-MODES.md
index 67eb1624..2d462690 100644
--- a/docs/UX-MODES.md
+++ b/docs/UX-MODES.md
@@ -172,6 +172,11 @@ tabs, the editor-close reserve, zoom and one gear whose menu holds the rest.
   editor with the draw tool armed (an empty floor has nothing useful in View).
 - ⚙ General settings (fill palette) lives here — it is about the plan's appearance.
 
+- Devices are landmarks here exactly as in Background (#687, #362): the same
+  markers as View at 35% (each marker's own opacity multiplied, as the
+  Background layer does) and fully pointer-inert — every press, hover and
+  cursor belongs to the Plan tool, room label or room settings button below.
+  Room labels share the device layer and stay opaque and interactive.
 - Independent partitions and columns are masonry for hit testing as well as
   area/light: room hover stops at their physical bodies just as it stops at a
   thick room wall. This does not split the room or change its HA area.
diff --git a/scripts/mutation-registry.mjs b/scripts/mutation-registry.mjs
index 5f059645..d4dde20f 100644
--- a/scripts/mutation-registry.mjs
+++ b/scripts/mutation-registry.mjs
@@ -3955,6 +3955,51 @@ const MUTANT_DEFINITIONS = [
       replace: '          && !inEditorSecondary) {',
     }],
   },
+  {
+    id: 'plan-device-landmarks-hidden',
+    guard: 'node demo/smoke_plan_device_landmarks.mjs',
+    because: '#687 AC1: the Plan editor shows the same markers as View as landmarks; hiding '
+      + 'them again removes the reference the owner asked for',
+    patches: [{
+      file: 'src/styles/plan.styles.ts',
+      find: '    .stage.markup .devlayer .dev {\n'
+        + '      filter: opacity(0.35);\n'
+        + '    }\n',
+      replace: '    .stage.markup .devlayer .dev {\n'
+        + '      display: none;\n'
+        + '    }\n',
+    }],
+  },
+  {
+    id: 'plan-device-landmarks-override-own-opacity',
+    guard: 'node demo/smoke_plan_device_landmarks.mjs',
+    because: '#687 contract item 2: the fade multiplies the marker\'s own opacity as the '
+      + 'Background layer does; an opacity override shows an unavailable marker at 35% '
+      + 'instead of 35% x 35%',
+    patches: [{
+      file: 'src/styles/plan.styles.ts',
+      find: '    .stage.markup .devlayer .dev {\n'
+        + '      filter: opacity(0.35);\n',
+      replace: '    .stage.markup .devlayer .dev {\n'
+        + '      opacity: 0.35;\n',
+    }],
+  },
+  {
+    id: 'plan-device-landmarks-hit-target',
+    guard: 'node demo/smoke_plan_device_landmarks.mjs',
+    because: '#687 AC2: a visible marker must never own a Plan-editor point; without the '
+      + 'pointer boundary its 44 px hit area and capsule swallow the Walls tool click and the '
+      + 'room settings button below',
+    patches: [{
+      file: 'src/styles/plan.styles.ts',
+      find: '    .stage.markup .devlayer .dev,\n'
+        + '    .stage.markup .devlayer .dev *,\n'
+        + '    .stage.markup .devlayer .dev::before {\n'
+        + '      pointer-events: none;\n'
+        + '    }\n',
+      replace: '',
+    }],
+  },
   {
     id: 'opening-light-quantum-identity',
     guard: 'node --test --test-name-pattern="#366" test/logic.test.mjs',
diff --git a/src/styles/plan.styles.ts b/src/styles/plan.styles.ts
index b1b2a20b..790168b4 100644
--- a/src/styles/plan.styles.ts
+++ b/src/styles/plan.styles.ts
@@ -1176,8 +1176,20 @@ export const planStyles = css`
     .stage.markup .room {
       pointer-events: none;
     }
+    /* #687: devices are landmarks in the Plan editor too, exactly as in
+       Background (#362): the same markers as View, at the same 35% and fully
+       pointer-inert, so every Plan tool receives the point below them. The
+       fade sits on each marker, not on .devlayer: room labels share that
+       layer and stay opaque and interactive here. filter: opacity()
+       multiplies the marker's own opacity (.unavail), as the Background
+       layer opacity does. */
     .stage.markup .devlayer .dev {
-      display: none; /* in plan mode the icons do not get in the way; labels stay */
+      filter: opacity(0.35);
+    }
+    .stage.markup .devlayer .dev,
+    .stage.markup .devlayer .dev *,
+    .stage.markup .devlayer .dev::before {
+      pointer-events: none;
     }
     /* mode frames: the edit modes are visible at a glance */
     .stage.mode-plan {