diff --git a/html/themes/custom/common_design_subtheme/templates/block/block--system-branding-block.html.twig b/html/themes/custom/common_design_subtheme/templates/block/block--system-branding-block.html.twig
new file mode 100644
index 00000000..1fdcc23d
--- /dev/null
+++ b/html/themes/custom/common_design_subtheme/templates/block/block--system-branding-block.html.twig
@@ -0,0 +1,10 @@
+{#
+/**
+ * @file
+ * Theme override for system branding block (site logo).
+ */
+#}
+<a href="{{ path('<front>') }}" title="{{ 'Front page'|t }}" rel="home" class="cd-site-logo">
+  <img src="{{ site_logo }}" alt="{{ site_name }}" aria-hidden="true" width="186" height="46">
+  <span class="visually-hidden">{{ site_name }}</span>
+</a>