A to Z search:

Halnaker Windmill

Route This iconic Sussex landmark, perched on Halnaker Hill and visible from a wide surrounding area, is well worth the climb to admire close up. The wildflower-rich chalk grassland at the hilltop is a great spot to get away from it all and enjoy fine views of the coast across a patchwork of woods and farmland. You may see the Isle of Wight and Portsmouth’s Spinnaker Tower.
For use by Walkers and cyclists

What's at Halnaker Windmill?

Halnaker WindmillHalnaker Hill is a Scheduled Ancient Monument as it is the location of a Neolithic earthwork structure known as a Causewayed Enclosure.  Within the Windmill site there is the Windmill, a grade 2 listed building, and a WW2 Observation Post which are also protected under the SAM designation.

The chalk grassland within the West Sussex site is subject to a conservation cut each year. The cutting from this are removed from the site in order to remove nutrients from when the site was farmed and promote greater plant diversity

Enjoy the colourful flowers which thrive amongst the chalk grassland. You may find some less common species such as bee orchid and white horehound. Chalk downland is a rich habitat for insects and a food source for farmland birds such as the lovely yellowhammer. Look out for Buzzards soaring over the landscape. Skylarks may be singing overhead - one of the quintessential sounds of the English countryside.

Butterflies attracted to the flowers up here include the marbled white, common blue, large skipper and red admiral. Along the lane on the way up keep an eye out for silver-washed fritillary, large, small and green-veined whites, meadow brown, ringlet and gatekeeper.

How to get there

Interactive map

To find Halnaker Windmill, launch our interactive iMap (opens in a new window), select 'British National Grid' from the search menu and enter SU920096 into the search box (top left).


From Warehead Farm (¾ mile) head north-east up Mill Lane, a public footpath. This ancient track follows the route of Stane Street, the London to Chichester Roman road. There’s a feeling of stepping back in time as you pass through a wonderful tunnel of trees. A path then turns off north up to the hill top.

Alternatively start at Seabeach House (1 mile to hilltop) or Eartham Wood (2miles) and walk south-west along the Roman road, to pick up the path north to the hilltop.

The Roman road is also part of a long-distance walking route the Monarch’s Way, which follows Charles II’s escape route from Worcester to Shoreham-by-Sea.

By bike

From Chichester, follow the Tangmere Cycle Route (see supporting document) to the centre of Boxgrove, then head North to pick up the A285 to Halnaker.

By bus

The nearest bus stop is at Halnaker Crossroads, by the Anglesey Arms pub, a 1.4 mile walk to Halnaker Mill. Use the Traveline website.

The bus stop is on Compass Travel route 99 between Petworth and Chichester. Halnaker is a request stop - prebooking required.

The bus stop is on the Hearts 55 bus route between Chichester and Tangmere.

By train

By train to Chichester railway station then cross the road to Chichester bus station for the 55 bus.

By car

A small lay by offers limited parking beside the A285 at the entrance to Warehead Farm. Follow the Mill Lane up hill from here (see ‘walking’ above). Another lay by offers parking for a few vehicles one mile from the mill, by the A285 next to the entrance to Seabeach House. From here a footpath leads south-west along Stane Street Roman road, then turn right up the path to the hilltop.

The car park and picnic site at Eartham Wood (Forestry Commission) is a good starting point for a 2 mile walk to Halnaker Windmill following Stane Street Roman road. This is located 1.5km north of Eartham at National Grid Reference SU938,106.

Getting around

The site has about a hectare of open grassland but no surfaced paths. The footpaths up to the hilltop are too steep and rough to be wheelchair or pushchair friendly.


There are no toilets, refreshments or other facilities at the site itself. The nearest option for refreshments is the Anglesey Arms pub at Halnaker crossroads (1.4 mile walk).

Share this page (third party services may set cookies)

© Copyright 2015 West Sussex County Council, County Hall, Chichester PO19 1RQ.

  • Bengali
  • Hindi
  • Punjabi
  • Urdu
  • Pashto
  • Gujarati

Privacy policy | Disclaimer | Site map
Site implementation by Unified Solutions Logo Unified Solutions Ltd