It is not a village or parish itself but was once the largest common in the county extending into five parishes; Gislingham, Finningham, Walsham-le-Willows and the two Ricklinghalls, Inferior and Superior.

It is not mentioned in Domesday Book as the area would most likely have been heavily wooded virgin forest.

It is mentioned in a licence of 1332 to "close a waye leading from Merssh to Aldewodegrene".

Nothing now remains as it was completely enclosed under the Enclosure of Commons Act 1818.

Media related to Allwood Green at Wikimedia Commons