diff --git a/admin/admin.py b/admin/admin.py
index cdc9bf88..ac3c0626 100644
--- a/admin/admin.py
+++ b/admin/admin.py
@@ -3,7 +3,7 @@
 __copyright__ = "Copyright (c) 2024, Utrecht University"
 __license__ = "GPLv3, see LICENSE"
 
-from flask import Blueprint, g, render_template, Response
+from flask import abort, Blueprint, render_template, Response
 
 import api
 
@@ -18,11 +18,17 @@
 
 @admin_bp.route("/")
 def index() -> Response:
-    # Call api to check is user is admin
-    is_admin = api.call("admin_is_user_admin", {})
-    if (
-        is_admin
-    ):  # TODO redirect to the access-dinied html (available) for non-admin user
-        print("Test api_group_user_is_admin success, from Portal")
-
-    return render_template("admin.html")
+    """
+    Route to the admin page. It checks if the current user has admin
+    privileges and directs them accordingly.
+
+    Returns:
+        Rendered template or aborts the request (403) if access is denied.
+    """
+    has_admin_access = api.call("admin_has_access", data={})["data"]
+    print(f"Admin access check from Portal: {has_admin_access}")
+
+    if has_admin_access:
+        return render_template("admin.html")
+    else:
+        return abort(403)
diff --git a/general/templates/general/user.html b/general/templates/general/user.html
index f3fc078b..8bfda149 100644
--- a/general/templates/general/user.html
+++ b/general/templates/general/user.html
@@ -1,24 +1,27 @@
 {% if g.user %}
-    <div class="dropdown">
-        <button type="button" class="btn btn-primary dropdown-toggle" id="userDropdown" data-bs-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+<div class="dropdown">
+    <button type="button" class="btn btn-primary dropdown-toggle" id="userDropdown" data-bs-toggle="dropdown"
+        aria-haspopup="true" aria-expanded="false">
         {{ g.user }} {% if g.notifications %}<i class="fa-solid fa-bell" aria-hidden="true"></i>{% endif %}
-        </button>
-        <div class="dropdown-menu dropdown-menu-end" aria-labelledby="userDropdown">
-            <a class="dropdown-item" href="{{ url_for('user_bp.notifications') }}">
-                Notifications {% if g.notifications %}<span class="badge bg-primary">{{ g.notifications }}</span>{% endif %}
-            </a>
-            <a class="dropdown-item" href="{{ url_for('user_bp.settings') }}">Settings</a>
-            {% if config.get('TOKENS_ENABLED') %}
-            <a class="dropdown-item" href="{{ url_for('user_bp.data_access') }}">Data Access Password</a>
-            {% endif %}
-            <div class="dropdown-divider"></div>
-            <a class="dropdown-item" href="{{ url_for('admin_bp.index') }}">Administration</a>
-            <a class="dropdown-item" href="{{ url_for('group_manager_bp.index') }}">Group Manager</a>
-            <a class="dropdown-item" href="{{ url_for('stats_bp.index') }}">Statistics</a>
-            <div class="dropdown-divider"></div>
-            <a class="dropdown-item" href="{{ url_for('user_bp.logout') }}">Log out</a>
-        </div>
+    </button>
+    <div class="dropdown-menu dropdown-menu-end" aria-labelledby="userDropdown">
+        <a class="dropdown-item" href="{{ url_for('user_bp.notifications') }}">
+            Notifications {% if g.notifications %}<span class="badge bg-primary">{{ g.notifications }}</span>{% endif %}
+        </a>
+        <a class="dropdown-item" href="{{ url_for('user_bp.settings') }}">Settings</a>
+        {% if config.get('TOKENS_ENABLED') %}
+        <a class="dropdown-item" href="{{ url_for('user_bp.data_access') }}">Data Access Password</a>
+        {% endif %}
+        <div class="dropdown-divider"></div>
+        {% if g.administration %}
+        <a class="dropdown-item" href="{{ url_for('admin_bp.index') }}">Administration</a>
+        {% endif %}
+        <a class="dropdown-item" href="{{ url_for('group_manager_bp.index') }}">Group Manager</a>
+        <a class="dropdown-item" href="{{ url_for('stats_bp.index') }}">Statistics</a>
+        <div class="dropdown-divider"></div>
+        <a class="dropdown-item" href="{{ url_for('user_bp.logout') }}">Log out</a>
     </div>
+</div>
 {% else %}
-    <a class="btn btn-primary" href="{{ url_for('user_bp.gate') }}" title="Go to sign in page">Sign in</a>
+<a class="btn btn-primary" href="{{ url_for('user_bp.gate') }}" title="Go to sign in page">Sign in</a>
 {% endif %}