diff --git a/docs/user_guide/project_file_options.rst b/docs/user_guide/project_file_options.rst
index 2150f933..945e352c 100644
--- a/docs/user_guide/project_file_options.rst
+++ b/docs/user_guide/project_file_options.rst
@@ -427,6 +427,18 @@ directory that starts with ``test`` anywhere in the source directory tree.
       exclude_dir: **/test*
           src/internal
 
+.. _option-html_template_dir:
+
+html_template_dir
+^^^^^^^^^^^^^^^^^
+
+A list of directories to search for HTML templates.
+
+.. caution:: This is an experimental feature!
+
+   You will most likely want to copy-paste the existing templates and
+   modify them. They are not well documented, so use at your own risk!
+
 .. _option-include:
 
 include
diff --git a/ford/output.py b/ford/output.py
index 13c0ba21..0f958209 100644
--- a/ford/output.py
+++ b/ford/output.py
@@ -45,7 +45,6 @@
 
 loc = pathlib.Path(__file__).parent
 env = jinja2.Environment(
-    loader=jinja2.FileSystemLoader(loc / "templates"),
     trim_blocks=True,
     lstrip_blocks=True,
 )
@@ -120,6 +119,10 @@ def __init__(self, settings: ProjectSettings, proj_docs: str, project, pagetree)
         # Also, in future for other template, we may not need to
         # pass the data obj.
         env.globals["projectData"] = asdict(settings)
+        env.loader=jinja2.FileSystemLoader(
+            settings.html_template_dir + [loc / "templates"]
+        )
+
         self.project = project
         self.settings = settings
         # Jinja2's `if` statement counts `None` as truthy, so to avoid
diff --git a/ford/settings.py b/ford/settings.py
index 40e275ef..373e700b 100644
--- a/ford/settings.py
+++ b/ford/settings.py
@@ -161,6 +161,7 @@ class ProjectSettings:
     graph_maxdepth: int = 10000
     graph_maxnodes: int = 1000000000
     hide_undoc: bool = False
+    html_template_dir: List[Path] = field(default_factory=list)
     incl_src: bool = True
     include: List[Path] = field(default_factory=list)
     license: str = ""