diff --git a/gulpfile.js b/gulpfile.js
index fc9fab7a6..60984c140 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -95,6 +95,12 @@ const copy = {
         )
       });
     }
+  },
+  leaflet: {
+    js: () => {
+      return src(paths.npm + 'leaflet/dist/leaflet.js')
+        .pipe(dest(paths.dist + 'javascripts/'))
+    }
   }
 };
 
@@ -182,7 +188,11 @@ const javascripts = () => {
 
 
 const sass = () => {
-  return src([paths.src + '/stylesheets/main*.scss', paths.src + '/stylesheets/print.scss'])
+  return src([
+      paths.src + '/stylesheets/main*.scss',
+      paths.src + '/stylesheets/print.scss',
+      paths.npm + '/leaflet/dist/leaflet.css'
+    ])
     .pipe(plugins.prettyerror())
     .pipe(plugins.sass({
       outputStyle: 'nested',
@@ -264,7 +274,8 @@ const defaultTask = parallel(
   parallel(
     copy.govuk_frontend.fonts,
     copy.govuk_frontend.templates,
-    images
+    images,
+    copy.leaflet.js
   ),
   series(
     copy.error_pages,
diff --git a/package.json b/package.json
index 498edaa17..189cdc8ec 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "gulp-uglify": "3.0.2",
     "hogan": "1.0.2",
     "jquery": "3.5.0",
+    "leaflet": "1.6.0",
     "query-command-supported": "1.0.0",
     "rollup": "1.23.1",
     "streamqueue": "1.1.2",