NHER 43123 (Monument record) - Castle Acre planned town

A Norman planned town occupying a rectangular area immediately to the west of the castle.
The town was enclosed by a ditch and an internal bank surmounted by a wall, with gates on the north and south sides. The bank and ditch on the west side and along much of the south side survive as substantial earthworks, known as Dyke Hills. The earthworks along the northern side have been levelled, but evidence recorded during installation of sewers has confirmed that the ditch survives as a buried feature beneath Stocks Green and the High Street and, at the eastern end, the inner edge of the ditch and traces of the outer edge can still be traced, curving southwards to meet the ditch around the inner ward of the castle. See NHER 25924, 25925, 25928 and 25931.
Little remains standing of the town wall except the eastern end on the south side, blocking the castle ditch, but other remains, including foundations, are likely to be preserved below the surface of the bank around the western side. Broken stubs of the wall can also be seen on the eastern side of the partly ruined northern gate, known as the Bailey Gate, which stands at the northern end of Bailey Street. This is massively built of mortared flint with stone dressings and, although now roofless, still stands to full height, with twin drum towers fronting recessed inner and outer arches. On the inner faces of the walls are remains of the slots for a portcullis.
Information taken from (S1).
S. Spooner (NLA) 12 April 2006