Scheduled Monuments


Archaeological sites of national importance are given legal protection by being placed on a ‘Schedule’ of monuments. Under the Ancient Monuments and Archaeological Areas Act 1979, the Welsh Ministers are required to compile and maintain this schedule.

In Wales there are over 4000 examples of Scheduled Monuments, which include Roman remains, burial mounds, castles, bridges, earthworks, the remains of deserted villages, industrial sites and 20th century military complexes etc.

Scheduled Monuments cannot include in use ecclesiastical buildings or monuments occupied as a dwelling (other than by a Caretaker) and unlike Listed Buildings they are not assigned grades.

In Wales, monuments have been scheduled since the 19th Century and this process has continued and is ongoing. Scheduled Monuments can be subject to a ‘Revision’, where new archaeological/historical evidence regarding the monument has required an alteration to the map depiction. Monuments can also be removed from the Schedule in a process called ‘De-Scheduling’. To avoid re-using old data, users should periodically obtain the latest version from Lle.

Some Scheduled Monument depictions such as a Hillfort dating from the Iron Age will encompass the Scheduled area as a single depiction, whilst others such as a group of Bronze Age burial barrows may be depicted as being spatially separate, but together comprise a single Scheduled Monument.

Description Type Endpoint
Web Map Service (WMS) WMS (inspire-wg:Cadw_SAM)
Web Feature Service (WFS) WFS (inspire-wg:Cadw_SAM)