diff --git a/src/app/workspaces/[workspaceId]/meeting-notes/new/page.tsx b/src/app/workspaces/[workspaceId]/meeting-notes/new/page.tsx
index dab95ba..7b2cce0 100644
--- a/src/app/workspaces/[workspaceId]/meeting-notes/new/page.tsx
+++ b/src/app/workspaces/[workspaceId]/meeting-notes/new/page.tsx
@@ -1,4 +1,5 @@
 import { NewMeetingNotePage } from '@/views/meeting-notes';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 
 interface WorkspaceNewMeetingNotePageProps {
   params: Promise<{
@@ -10,6 +11,7 @@ export default async function WorkspaceNewMeetingNotePage({
   params,
 }: WorkspaceNewMeetingNotePageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'meeting-notes');
 
   return <NewMeetingNotePage workspaceId={workspaceId} />;
 }
diff --git a/src/app/workspaces/[workspaceId]/meeting-notes/page.tsx b/src/app/workspaces/[workspaceId]/meeting-notes/page.tsx
index 84e4faa..47c125d 100644
--- a/src/app/workspaces/[workspaceId]/meeting-notes/page.tsx
+++ b/src/app/workspaces/[workspaceId]/meeting-notes/page.tsx
@@ -1,4 +1,5 @@
 import { MeetingNotesPage } from '@/views/meeting-notes';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 
 interface WorkspaceMeetingNotesPageProps {
   params: Promise<{
@@ -10,6 +11,7 @@ export default async function WorkspaceMeetingNotesPage({
   params,
 }: WorkspaceMeetingNotesPageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'meeting-notes');
 
   return <MeetingNotesPage workspaceId={workspaceId} />;
 }
diff --git a/src/app/workspaces/[workspaceId]/notices/page.tsx b/src/app/workspaces/[workspaceId]/notices/page.tsx
index 8e069b9..40ef63b 100644
--- a/src/app/workspaces/[workspaceId]/notices/page.tsx
+++ b/src/app/workspaces/[workspaceId]/notices/page.tsx
@@ -1,5 +1,6 @@
 // 워크스페이스 공지 페이지의 라우트 진입점입니다.
 import { getNoticeBoard } from '@/entities/notice/api/get-notice-board';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 import { NoticesView } from '@/views/store-operation/notices';
 
 interface NoticesPageProps {
@@ -10,6 +11,7 @@ interface NoticesPageProps {
 
 export default async function NoticesPage({ params }: NoticesPageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'notices');
   const initialData = await getNoticeBoard(workspaceId);
 
   return <NoticesView workspaceId={workspaceId} initialData={initialData} />;
diff --git a/src/app/workspaces/[workspaceId]/progress-chart/page.tsx b/src/app/workspaces/[workspaceId]/progress-chart/page.tsx
index a6b5722..2aa5514 100644
--- a/src/app/workspaces/[workspaceId]/progress-chart/page.tsx
+++ b/src/app/workspaces/[workspaceId]/progress-chart/page.tsx
@@ -1,5 +1,6 @@
 // 진행률 차트 라우트 — 워크스페이스 존재/용도만 서버에서 판정하고, 데이터 조회·조립은 client 컨테이너(useQuery)에 위임한다.
 import { ProgressChartPage } from '@/views/progress-chart';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 
 interface WorkspaceProgressChartPageProps {
   params: Promise<{
@@ -11,6 +12,7 @@ export default async function WorkspaceProgressChartPage({
   params,
 }: WorkspaceProgressChartPageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'progress-chart');
 
   return <ProgressChartPage workspaceId={workspaceId} />;
 }
diff --git a/src/app/workspaces/[workspaceId]/project-management/page.tsx b/src/app/workspaces/[workspaceId]/project-management/page.tsx
index 3b86497..66d5c39 100644
--- a/src/app/workspaces/[workspaceId]/project-management/page.tsx
+++ b/src/app/workspaces/[workspaceId]/project-management/page.tsx
@@ -1,4 +1,5 @@
 import { ProjectManagementPage } from '@/views/project-management';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 
 interface WorkspaceProjectManagementPageProps {
   params: Promise<{
@@ -10,6 +11,7 @@ export default async function WorkspaceProjectManagementPage({
   params,
 }: WorkspaceProjectManagementPageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'project-management');
 
   return <ProjectManagementPage workspaceId={workspaceId} />;
 }
diff --git a/src/app/workspaces/[workspaceId]/sprint-board/page.tsx b/src/app/workspaces/[workspaceId]/sprint-board/page.tsx
index 7115077..e6a0049 100644
--- a/src/app/workspaces/[workspaceId]/sprint-board/page.tsx
+++ b/src/app/workspaces/[workspaceId]/sprint-board/page.tsx
@@ -1,6 +1,7 @@
 // 스프린트 보드 라우트 — 선택 스프린트를 searchParam(?sprint=id)으로 읽어 client 컨테이너에 넘긴다.
 // 스프린트/태스크는 컨테이너가 useQuery로 조회하고, 담당자 표시명 해석용 members만 서버에서 조회해 주입한다.
 import { getWorkspaceMembersByWorkspaceId } from '@/entities/workspace-member/api/get-workspace-members-by-id';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 import { SprintBoardView } from '@/views/side-project/sprint-board';
 
 interface SprintBoardRouteProps {
@@ -10,6 +11,7 @@ interface SprintBoardRouteProps {
 
 export default async function SprintBoardPage({ params, searchParams }: SprintBoardRouteProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'sprint-board');
   const { sprint: sprintParam } = await searchParams;
   const selectedSprintId = typeof sprintParam === 'string' ? sprintParam : undefined;
 
diff --git a/src/app/workspaces/[workspaceId]/unavailable/page.tsx b/src/app/workspaces/[workspaceId]/unavailable/page.tsx
new file mode 100644
index 0000000..5807b33
--- /dev/null
+++ b/src/app/workspaces/[workspaceId]/unavailable/page.tsx
@@ -0,0 +1,14 @@
+// 목적에 맞지 않는 워크스페이스 전용 모듈에 직접 접근했을 때 표시하는 라우트입니다.
+import { WorkspaceUnavailableView } from '@/views/workspace-unavailable';
+
+interface WorkspaceUnavailablePageProps {
+  params: Promise<{
+    workspaceId: string;
+  }>;
+}
+
+export default async function WorkspaceUnavailablePage({ params }: WorkspaceUnavailablePageProps) {
+  const { workspaceId } = await params;
+
+  return <WorkspaceUnavailableView workspaceId={workspaceId} />;
+}
diff --git a/src/app/workspaces/[workspaceId]/work-schedule/page.tsx b/src/app/workspaces/[workspaceId]/work-schedule/page.tsx
index 22d4b40..90a291f 100644
--- a/src/app/workspaces/[workspaceId]/work-schedule/page.tsx
+++ b/src/app/workspaces/[workspaceId]/work-schedule/page.tsx
@@ -1,5 +1,6 @@
 // 현재 주의 멤버, 근무유형, 스케줄 데이터를 병렬 조회해 근무 스케줄 화면에 전달하는 서버 페이지입니다.
 import { getWorkspaceMembersByWorkspaceId } from '@/entities/workspace-member/api/get-workspace-members-by-id';
+import { assertWorkspaceRouteAccess } from '@/entities/workspace/lib/assert-workspace-route-access';
 import { getWorkScheduleEntriesByWeek } from '@/entities/work-schedule/api/get-work-schedule-entries-by-week';
 import { getWorkShiftTypesByWorkspaceId } from '@/entities/work-schedule/api/get-work-shift-types-by-workspace-id';
 import { ensureWeeklyWorkScheduleEntries } from '@/entities/work-schedule/api/ensure-weekly-work-schedule-entries';
@@ -14,6 +15,7 @@ interface WorkSchedulePageProps {
 
 export default async function WorkSchedulePage({ params }: WorkSchedulePageProps) {
   const { workspaceId } = await params;
+  await assertWorkspaceRouteAccess(workspaceId, 'work-schedule');
   const { startDate, endDate } = getCurrentWeekRange();
   await ensureWeeklyWorkScheduleEntries(workspaceId, startDate);
   const [members, shifts, schedule] = await Promise.all([
diff --git a/src/entities/workspace/lib/assert-workspace-route-access.ts b/src/entities/workspace/lib/assert-workspace-route-access.ts
new file mode 100644
index 0000000..2c70da9
--- /dev/null
+++ b/src/entities/workspace/lib/assert-workspace-route-access.ts
@@ -0,0 +1,33 @@
+// 워크스페이스 목적에 맞지 않는 전용 모듈 URL의 직접 접근을 서버에서 차단합니다.
+import { redirect } from 'next/navigation';
+import { getWorkspaceById } from '../api/get-workspace-by-id';
+import type { WorkspacePurpose } from '../model/workspace.types';
+
+type WorkspaceProtectedRoute =
+  | 'meeting-notes'
+  | 'notices'
+  | 'progress-chart'
+  | 'project-management'
+  | 'sprint-board'
+  | 'work-schedule';
+
+// 각 목적에서 제공하는 전용 모듈 라우트를 정의합니다. 공통 모듈은 별도 보호가 필요하지 않습니다.
+const workspaceRoutePurposes: Record<WorkspaceProtectedRoute, readonly WorkspacePurpose[]> = {
+  'meeting-notes': ['team-project', 'side-project'],
+  notices: ['team-project', 'store-operation'],
+  'progress-chart': ['team-project', 'side-project'],
+  'project-management': ['team-project'],
+  'sprint-board': ['side-project'],
+  'work-schedule': ['store-operation'],
+};
+
+export async function assertWorkspaceRouteAccess(
+  workspaceId: string,
+  route: WorkspaceProtectedRoute,
+): Promise<void> {
+  const workspace = await getWorkspaceById(workspaceId);
+
+  if (!workspace || !workspaceRoutePurposes[route].includes(workspace.purpose)) {
+    redirect(`/workspaces/${workspaceId}/unavailable`);
+  }
+}
diff --git a/src/views/workspace-unavailable/index.ts b/src/views/workspace-unavailable/index.ts
new file mode 100644
index 0000000..983a3d2
--- /dev/null
+++ b/src/views/workspace-unavailable/index.ts
@@ -0,0 +1,2 @@
+// 접근할 수 없는 워크스페이스 전용 모듈 화면의 Public API입니다.
+export { WorkspaceUnavailableView } from './ui/WorkspaceUnavailableView';
diff --git a/src/views/workspace-unavailable/ui/WorkspaceUnavailableView.tsx b/src/views/workspace-unavailable/ui/WorkspaceUnavailableView.tsx
new file mode 100644
index 0000000..6932a6a
--- /dev/null
+++ b/src/views/workspace-unavailable/ui/WorkspaceUnavailableView.tsx
@@ -0,0 +1,30 @@
+// 현재 워크스페이스 목적에서 제공하지 않는 모듈에 접근했을 때 안내하는 화면입니다.
+import { ArrowLeft, ShieldAlert } from 'lucide-react';
+import Link from 'next/link';
+
+interface WorkspaceUnavailableViewProps {
+  workspaceId: string;
+}
+
+export function WorkspaceUnavailableView({ workspaceId }: WorkspaceUnavailableViewProps) {
+  return (
+    <section className="mx-auto flex min-h-[calc(100vh-72px)] w-full max-w-2xl items-center justify-center px-4 py-10 sm:px-8">
+      <div className="w-full rounded-2xl border border-slate-200 bg-white p-8 text-center shadow-sm sm:p-12">
+        <span className="mx-auto flex h-14 w-14 items-center justify-center rounded-2xl bg-rose-50 text-rose-500">
+          <ShieldAlert className="h-7 w-7" aria-hidden="true" />
+        </span>
+        <h1 className="mt-5 text-2xl font-bold text-slate-950">접근할 수 없는 페이지입니다.</h1>
+        <p className="mt-2 text-sm leading-6 text-slate-500">
+          현재 워크스페이스 템플릿에서는 이 기능을 사용할 수 없습니다.
+        </p>
+        <Link
+          href={`/workspaces/${workspaceId}/dashboard`}
+          className="mt-7 inline-flex h-11 items-center gap-2 rounded-xl bg-[var(--color-brand)] px-4 text-sm font-bold text-white hover:bg-indigo-500"
+        >
+          <ArrowLeft className="h-4 w-4" aria-hidden="true" />
+          대시보드로 돌아가기
+        </Link>
+      </div>
+    </section>
+  );
+}
diff --git a/src/widgets/workspace-shell/ui/WorkspaceHeader.tsx b/src/widgets/workspace-shell/ui/WorkspaceHeader.tsx
index 0158ea9..36259e8 100644
--- a/src/widgets/workspace-shell/ui/WorkspaceHeader.tsx
+++ b/src/widgets/workspace-shell/ui/WorkspaceHeader.tsx
@@ -21,6 +21,7 @@ interface WorkspaceHeaderProps {
 
 function getCurrentPageTitle(pathname: string, navigationItems: WorkspaceNavigationItem[]): string {
   if (pathname.endsWith('/notifications')) return '알림';
+  if (pathname.endsWith('/unavailable')) return '접근 제한';
 
   const currentNavigationItem = navigationItems.find((item) => pathname.endsWith(`/${item.href}`));
   return currentNavigationItem?.label ?? '대시보드';