It was included by William the Conqueror in the Royal Forest of Dean, but by the 12th century was established as a village, with a church.

Together with the abbey grange at Brockweir, the manor was then granted to Henry Somerset, 2nd Earl of Worcester.

[4] The area known as Hewelsfield Common, west of the village and sloping down to the River Wye, was occupied and developed in a piecemeal fashion by squatters in the 18th and early 19th centuries.

Later in the 19th century, encouraged partly by the opening of the Wye Valley Railway on the Monmouthshire side of the river in 1876, private residents and retired people settled in the area and enlarged the cottages or built new houses.

For the purposes of the tables, 'Hewelsfield' is taken to include all buildings in the Civil Parish of Hewelsfield and Brockweir to the east of Offa's Dyke; 'Brockweir' is taken to include all buildings in the Civil Parish of Hewelsfield and Brockweir to the west of Offa's Dyke.