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Green Ridge is a well loved public open space, and Site of Nature Conservation Importance (SNCI), to the north of the Brighton and Hove. It is mainly open grassland dominated by Patcham windmill, with a large area of woodland called Coney Wood, an ancient hedge and a dew pond.

Some of the site has a wild and natural feel and forms a typical high downland ridge, sweeping down through Westdean towards the sea. There are spectacular views to be enjoyed all around. The site is rich in wildlife and offers a countryside experience including many opportunities for quiet recreation.

Green Ridge covers about 9 hectares (22 acres) most of which is public open space surrounded by housing to the south and the busy Mill Road and A27 to the north.
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A Dew pond is an artificial pond usually sited on the top of a hill, intended for watering livestock. Dew ponds are used in areas where a natural supply of surface water may not be readily available.

They are usually shallow, saucer-shaped and lined with puddled clay, chalk or marl on an insulating straw layer over a bottom layer of chalk or lime.

Despite the name, their primary source of water is believed to be rainfall rather than dew or mist.

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This windmill was the last working windmill to be built in Sussex. Construction of the tower started in February 1884 by a local builder named Hubbard. Link