diff --git a/src/engineering_platform/assets/dashboard.css b/src/engineering_platform/assets/dashboard.css
index f241d4b8..3d4bd533 100644
--- a/src/engineering_platform/assets/dashboard.css
+++ b/src/engineering_platform/assets/dashboard.css
@@ -1119,7 +1119,7 @@ html[data-theme="light"] .dashboard-status-banner--provider-auth_required .provi
 
 /* The absence of a selected project is neutral context, kept visible with
    the other operational banners rather than as a scrolling dashboard card. */
-.dashboard-sticky-header:has(#noProjectSelected){padding-bottom:7px}.dashboard-status-banner--no-project{align-items:center;background:#163b59;border-bottom:1px solid #62bdf0;color:#e7f5ff;font:600 13px/1.45 system-ui}.dashboard-status-banner--no-project strong{color:#9bd7ff}html[data-theme="light"] .dashboard-status-banner--no-project{background:#e2f3ff;color:#12466b}html[data-theme="light"] .dashboard-status-banner--no-project strong{color:#075985}
+.dashboard-sticky-header:has(#noProjectSelected:not([hidden])){padding-bottom:7px}.dashboard-status-banner--no-project{align-items:center;background:#163b59;border-bottom:1px solid #62bdf0;color:#e7f5ff;font:600 13px/1.45 system-ui}.dashboard-status-banner--no-project strong{color:#9bd7ff}.no-project-selected__dismiss{align-items:center;background:transparent!important;border:1px solid currentColor!important;border-radius:50%;color:inherit!important;cursor:pointer;display:inline-flex;flex:none;font:22px/1 system-ui;height:30px;justify-content:center;margin-left:auto;min-height:30px;min-width:30px;padding:0;width:30px}.no-project-selected__dismiss:hover,.no-project-selected__dismiss:focus-visible{background:#9bd7ff!important;border-color:#9bd7ff!important;color:#123a58!important}.no-project-selected__dismiss:focus-visible{box-shadow:0 0 0 4px #9bd7ff55!important;outline:2px solid #9bd7ff!important;outline-offset:2px!important}html[data-theme="light"] .dashboard-status-banner--no-project{background:#e2f3ff;color:#12466b}html[data-theme="light"] .dashboard-status-banner--no-project strong{color:#075985}html[data-theme="light"] .no-project-selected__dismiss:hover,html[data-theme="light"] .no-project-selected__dismiss:focus-visible{background:#075985!important;border-color:#075985!important;color:#fff!important}
 
 /* Managed PR evidence remains a normal link, positioned under execution
    context so both current and historical operational context stay scannable. */
diff --git a/src/engineering_platform/assets/dashboard.js b/src/engineering_platform/assets/dashboard.js
index 6c0d6a48..30b8bda5 100644
--- a/src/engineering_platform/assets/dashboard.js
+++ b/src/engineering_platform/assets/dashboard.js
@@ -5832,6 +5832,20 @@ document.addEventListener("pointerdown", (event) => {
 const workspaceLocation = document.querySelector('[data-workspace-label="ui.workspace_location"] + pre');
 replaceWithLocalFilesystemLink(workspaceLocation);
 replaceWithLocalFilesystemLink($("rateLimitProviderPath"));
+const noProjectDismissalStorageKey = "engineering-platform.no-project-selected.dismissed.v1";
+function initializeNoProjectSelectedBanner() {
+  const banner = $("noProjectSelected"), dismiss = $("noProjectSelectedDismiss");
+  if (!banner || !dismiss || dismiss.dataset.dismissBound) return;
+  dismiss.dataset.dismissBound = "true";
+  try {
+    banner.hidden = localStorage.getItem(noProjectDismissalStorageKey) === "true";
+  } catch {}
+  dismiss.addEventListener("click", () => {
+    banner.hidden = true;
+    try { localStorage.setItem(noProjectDismissalStorageKey, "true"); } catch {}
+  });
+}
+initializeNoProjectSelectedBanner();
 applyDashboardLocale();
 let dashboardConfiguration = {}, dashboardConfigurationLoaded = false;
 const configurationFields = Object.freeze({
diff --git a/src/engineering_platform/server.py b/src/engineering_platform/server.py
index 7097287e..da8ceadd 100644
--- a/src/engineering_platform/server.py
+++ b/src/engineering_platform/server.py
@@ -2171,7 +2171,7 @@ def _no_project_console_document(projects: list[dict[str, str]], data_root: Path
     options = _console_project_options(None, projects)
     selector = f'''<label class="dashboard-project" for="dashboardProject"><span data-i18n="project.label"></span><select id="dashboardProject" data-i18n-aria-label="project.label">{options}</select></label>'''
     boundary = '''<script>window.ENGINEERING_PLATFORM_NO_PROJECT=true;(function(){const select=document.getElementById('dashboardProject');if(select)select.addEventListener('change',()=>{const url=new URL(window.location.href);if(select.value)url.searchParams.set('project',select.value);else url.searchParams.delete('project');window.location.assign(url)});$CENTRAL_DATABASE_SCRIPT})();</script>'''.replace("$CENTRAL_DATABASE_SCRIPT", _central_database_script())
-    empty_state = '''<aside class="dashboard-status-banner dashboard-status-banner--no-project" id="noProjectSelected" role="status" aria-live="polite" data-testid="no-project-selected"><strong data-i18n="central.no_project_selected_title"></strong><span data-i18n="central.no_project_selected_body"></span></aside>'''
+    empty_state = '''<aside class="dashboard-status-banner dashboard-status-banner--no-project" id="noProjectSelected" role="status" aria-live="polite" data-testid="no-project-selected"><strong data-i18n="central.no_project_selected_title"></strong><span data-i18n="central.no_project_selected_body"></span><button class="no-project-selected__dismiss" id="noProjectSelectedDismiss" type="button" data-i18n-aria-label="action.close" data-i18n-title="action.close"><span aria-hidden="true">×</span></button></aside>'''
     scoped_style = '''<style>
 body[data-project-id="none"] #queueItems,
 body[data-project-id="none"] #promptHistory,
diff --git a/tests/engineering/dashboard.spec.mjs b/tests/engineering/dashboard.spec.mjs
index 492096bd..2e0b2631 100644
--- a/tests/engineering/dashboard.spec.mjs
+++ b/tests/engineering/dashboard.spec.mjs
@@ -127,6 +127,20 @@ test.beforeEach(async ({ page }) => {
   await page.route("**/api/events", (route) => route.abort());
 });
 
+test("dismisses the no-project banner for the current browser", async ({ page }) => {
+  const noProjectUrl = new URL(dashboardUrl);
+  noProjectUrl.search = "";
+  await page.goto(noProjectUrl.href, { waitUntil: "domcontentloaded" });
+  const banner = page.getByTestId("no-project-selected");
+  await expect(banner).toBeVisible();
+  const dismiss = page.locator("#noProjectSelectedDismiss");
+  await expect(dismiss).toHaveAttribute("aria-label", DASHBOARD_MESSAGES.en["action.close"]);
+  await dismiss.click();
+  await expect(banner).toBeHidden();
+  await page.reload({ waitUntil: "domcontentloaded" });
+  await expect(banner).toBeHidden();
+});
+
 test.afterAll(async () => {
   if (dashboard && dashboard.exitCode === null && dashboard.signalCode === null) {
     const exited = new Promise((resolve) => dashboard.once("exit", resolve));
diff --git a/tests/engineering/test_server_foundation.py b/tests/engineering/test_server_foundation.py
index 9f6dc42f..0a2584c1 100644
--- a/tests/engineering/test_server_foundation.py
+++ b/tests/engineering/test_server_foundation.py
@@ -366,6 +366,7 @@ def test_no_project_console_never_resolves_a_checkout_for_shell_assets_or_platfo
             document = response.read().decode("utf-8")
         self.assertIn('data-project-id="none"', document)
         self.assertIn('id="noProjectSelected"', document)
+        self.assertIn('id="noProjectSelectedDismiss"', document)
         self.assertIn('data-i18n="central.no_project_selected_title"', document)
         self.assertIn('data-i18n="central.no_project_selected_body"', document)
         self.assertNotIn('Geen project gekozen', document)