There are 425 scheduled monuments in the county of Essex, England.^[1] These protected sites date from the Neolithic period in some cases and include barrows, moated sites, ruined abbeys, castles, and a windmill.^[2] In the United Kingdom, the scheduling of monuments was first initiated to ensure the preservation of "nationally important" archaeological sites or historic buildings. Protection given to scheduled monuments under the Ancient Monuments and Archaeological Areas Act 1979.^[3]

Image	Name	Location	Date	Notes
	Colchester Castle	51°53′26″N 0°54′11″E / 51.890589°N 0.903047°E / 51.890589; 0.903047	1st century AD – 11th century AD	The monument includes a Roman fort, the remains of a Roman settlement, a classical temple, a late Anglo-Saxon chapel and a Norman castle.[4]
	Hadleigh Castle	51°32′40″N 0°36′32″E / 51.5444°N 0.6090°E / 51.5444; 0.6090	After 1215 AD	This is the only surviving example of an enclosure castle in Essex and an associated dam and watermill.[5]
	Hedingham Castle	51°59′33″N 0°36′04″E / 51.99250°N 0.60111°E / 51.99250; 0.60111	Late 11th-early 12th century	A ringwork castle and tower-keep. It is the best example of a Norman tower-keep in England.[6]
	The Leper Hospital of St Giles	51°43′37″N 0°40′03″E / 51.726898°N 0.667409°E / 51.726898; 0.667409	Late 12th century	St Giles is the only surviving leper hospital in Essex. The above ground ruins are most likely the hospital chapel.[7][8]
	St Botolph's Priory	51°53′15″N 0°54′15″E / 51.88749°N 0.90429°E / 51.88749; 0.90429	1093 AD	St Botolph's was the first Augustinian priory in England. It is a notable example of early Norman architecture.[9][10]
	St John's Abbey, Colchester	51°53′7.96″N 0°54′5.67″E / 51.8855444°N 0.9015750°E / 51.8855444; 0.9015750	1095 AD	The above-ground remains of the Benedictine abbey include sections of the precinct wall and the abbey gatehouse. The gatehouse was built around 1400.[11]
	Stansted Mountfitchet Windmill	51°54′04″N 0°11′38″E / 51.901°N 0.194°E / 51.901; 0.194	1787 AD	A 5-storey brick tower windmill built in 1787. It is not currently in service, but the windmill's cap and sails are functioning and it has all the original machinery.[12][13]
	St Peter's Church, Wickham Bishops	51°46′11″N 0°38′36″E / 51.7698°N 0.6434°E / 51.7698; 0.6434	11th century	A redundant church in the village of Wickham Bishops. The building was abandoned after 1850 when a new church was built.[14]
	Stansted Mountfitchet Castle	51°54′09″N 0°12′07″E / 51.90261°N 0.20192°E / 51.90261; 0.20192	After 1096 AD	A Norman ringwork and bailey fortification. The site is currently in use as a Living history museum.[15]

• Grade I listed buildings in Essex
• List of scheduled monuments in the United Kingdom