Separating Terrel's Heath from Woodside School is an ancient bank and ditch that marks the boundary between the traditional parishes of Chadwell St Mary and Little Thurrock.

[2] It can be accessed only from the bridle path [3] which runs from Chadwell St Mary, across nearby Orsett Heath to Hangman's Wood, part of the ancient route from Coalhouse Point in East Tilbury to the bridge or causeway at Aveley.

[6] The element "Heath" may relate either to a time when it was not wooded or to include the surrounding area which was until comparatively recently typical heathland.

Terrel's Heath was given to Thurrock Council by the Baker family of Orsett Hall and is now a public open space.

Before the road and before the nearby housing estates were there Terrel's Heath would have been part of a large swathe of heathland interspaced with woodland.