diff --git a/gulp/clean.js b/gulp/clean.js
deleted file mode 100755
index ba3e7cdf9..000000000
--- a/gulp/clean.js
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
-  clean.js
-  ===========
-  removes folders:
-    - public
-*/
-
-const { rimrafSync } = require('rimraf')
-const gulp = require('gulp')
-
-const config = require('./config.json')
-
-gulp.task('clean', (done) => {
-  rimrafSync([config.paths.public, '.port.tmp'])
-  return done()
-})
diff --git a/gulp/config.json b/gulp/config.json
deleted file mode 100755
index d528fc4b5..000000000
--- a/gulp/config.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "paths": {
-    "public": "public/",
-    "assets" : "app/assets/",
-    "nodeModules": "node_modules/",
-    "lib": "lib/"
-  }
-}
diff --git a/gulp/copy-assets.js b/gulp/copy-assets.js
deleted file mode 100755
index f17028285..000000000
--- a/gulp/copy-assets.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
-  copy.js
-  ===========
-  copies images and javascript folders to public
-*/
-
-const gulp = require('gulp')
-
-const config = require('./config.json')
-
-gulp.task('copy-images', () => {
-  return gulp.src(
-    config.paths.assets + 'images/*.+(png|jpg|jpeg|gif|svg|ico)',
-    { encoding: false }
-  )
-    .pipe(gulp.dest(config.paths.public + 'images/'))
-})
-
-gulp.task('copy-javascripts', () => {
-  return gulp.src(config.paths.assets + 'javascripts/*')
-    .pipe(gulp.dest(config.paths.public + 'javascripts/'))
-})
-
-gulp.task('copy-data', () => {
-  return gulp.src(config.paths.assets + 'data/**')
-    .pipe(gulp.dest(config.paths.public + 'data/'))
-})
-
-gulp.task('copy-downloads', () => {
-  return gulp.src(config.paths.assets + 'downloads/**')
-    .pipe(gulp.dest(config.paths.public + 'downloads/'))
-})
diff --git a/gulp/nodemon.js b/gulp/nodemon.js
deleted file mode 100755
index 956ba93ab..000000000
--- a/gulp/nodemon.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
-  nodemon.js
-  ===========
-  uses nodemon to run a server, watches for javascript and json changes
-*/
-
-const fs = require('fs')
-const path = require('path')
-
-const gulp = require('gulp')
-const colour = require('ansi-colors')
-const log = require('fancy-log')
-const nodemon = require('gulp-nodemon')
-
-const config = require('./config.json')
-
-// Warn about npm install on crash
-const onCrash = () => {
-  log(colour.cyan('[nodemon] For missing modules try running `npm install`'))
-}
-
-// Remove .port.tmp if it exists
-const onQuit = () => {
-  try {
-    fs.unlinkSync(path.join(__dirname, '/../.port.tmp'))
-  } catch (e) {}
-
-  process.exit(0)
-}
-
-gulp.task('server', () => {
-  nodemon({
-    watch: ['.env', '**/*.js', '**/*.json'],
-    script: 'listen-on-port.js',
-    ignore: [
-      config.paths.public + '*',
-      config.paths.assets + '*',
-      config.paths.nodeModules + '*'
-    ]
-  })
-    .on('crash', onCrash)
-    .on('quit', onQuit)
-})
diff --git a/gulp/sass.js b/gulp/sass.js
deleted file mode 100755
index 60166fdea..000000000
--- a/gulp/sass.js
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-  sass.js
-  ===========
-  compiles sass from assets folder
-  also includes sourcemaps
-*/
-
-const gulp = require('gulp')
-const sass = require('gulp-sass')(require('sass'))
-const sourcemaps = require('gulp-sourcemaps')
-const path = require('path')
-const fs = require('fs')
-
-const extensions = require('../lib/extensions/extensions')
-const config = require('./config.json')
-const stylesheetDirectory = config.paths.public + 'stylesheets'
-
-gulp.task('sass-extensions', (done) => {
-  const fileContents = '$govuk-extensions-url-context: "/extension-assets"; ' + extensions.getFileSystemPaths('sass')
-    .map(filePath => `@import "${filePath.split(path.sep).join('/')}";`)
-    .join('\n')
-  fs.writeFile(path.join(config.paths.lib + 'extensions', '_extensions.scss'), fileContents, done)
-})
-
-gulp.task('sass', () => {
-  return gulp.src(config.paths.assets + '/sass/*.scss')
-    .pipe(sourcemaps.init())
-    .pipe(sass({ outputStyle: 'expanded' }).on('error', (error) => {
-      // write a blank application.css to force browser refresh on error
-      if (!fs.existsSync(stylesheetDirectory)) {
-        fs.mkdirSync(stylesheetDirectory)
-      }
-      fs.writeFileSync(path.join(stylesheetDirectory, 'application.css'), '')
-      console.error('\n', error.messageFormatted, '\n')
-      this.emit('end')
-    }))
-    .pipe(sourcemaps.write())
-    .pipe(gulp.dest(stylesheetDirectory))
-})
diff --git a/gulp/school-search-index.js b/gulp/school-search-index.js
deleted file mode 100644
index 40bf5eb78..000000000
--- a/gulp/school-search-index.js
+++ /dev/null
@@ -1,9 +0,0 @@
-const gulp = require('gulp')
-const lunr = require('./../scripts/generate-search-index') // generate
-
-gulp.task('school-search-index', (done) => {
-  // Generate search index
-  lunr()
-
-  done()
-})
diff --git a/gulp/watch.js b/gulp/watch.js
deleted file mode 100755
index 727448a4b..000000000
--- a/gulp/watch.js
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
-  watch.js
-  ===========
-  watches sass/js/images
-*/
-
-const gulp = require('gulp')
-
-const config = require('./config.json')
-
-gulp.task('watch-sass', () => {
-  return gulp.watch(config.paths.assets + 'sass/**', { cwd: './' }, gulp.task('sass'))
-})
-
-gulp.task('watch-assets', () => {
-  return gulp.watch([
-    config.paths.assets + 'images/**',
-    config.paths.assets + 'javascripts/**'
-  ], { cwd: './' }, gulp.task('copy-assets'))
-})
diff --git a/gulpfile.js b/gulpfile.js
deleted file mode 100755
index b2aceb70c..000000000
--- a/gulpfile.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
-  gulpfile.js
-  ===========
-  Rather than manage one giant configuration file responsible
-  for creating multiple tasks, each task has been broken out into
-  its own file in `/gulp`. Any files in that directory
-  get automatically required below.
-  To add a new task, simply add a new task file that directory.
-*/
-
-const gulp = require('gulp')
-const requireDir = require('require-dir')
-
-// Require all tasks in gulp/tasks, including subfolders
-requireDir('./gulp', { recurse: true })
-
-// gulp 4 requires dependency tasks to be defined before they are called.
-// We'll keep our top-level tasks in this file so that they are defined at the end of the chain, after their dependencies.
-gulp.task('generate-assets', gulp.series(
-  'clean',
-  'sass-extensions',
-  'school-search-index',
-  gulp.parallel(
-    'sass',
-    'copy-images',
-    'copy-javascripts',
-    'copy-data',
-    'copy-downloads'
-  )
-))
-gulp.task('watch', gulp.parallel(
-  'watch-sass',
-  'watch-assets'
-))
-gulp.task('default', gulp.series(
-  'generate-assets',
-  gulp.parallel(
-    'watch',
-    'server'
-  )
-))