The comprehensive gazetteer and bibliography of the medieval castles, fortifications and palaces of England, Wales, the Islands.
The listings
Other Info
Print Page 
Next Record 
Previous Record 
Back to list 

Isleworth Manor

In the civil parish of Hounslow.
In the historic county of London and Middlesex.
Modern Authority of London Borough of Hounslow.
1974 county of Greater London.
Medieval County of Middlesex.

OS Map Grid Reference: TQ15287553
Latitude 51.46704° Longitude -0.34173°

Isleworth Manor has been described as a probable Fortified Manor House, and also as a probable Palace.

There are no visible remains.


On the death of Margaret de Clare in 1312, the manor of Isleworth passed to the Crown. Manorial accounts refer to several residential buildings arranged around a courtyard, and included the royal chambers, hall, kitchen, and chapel. Without the court was an outer courtyard containing barns and other outbuildings. In 1421 the manor house and manor were granted to the new Bridgettine foundation at Syon. A moated site exists at TQ153754 and may be the remains of this site (HKW). (PastScape 1393703)
Homestead moat, on the N. side of the road 1m W.S.W. of the church, has been almost entirely filled in (RCHME). A square moat with the entrance on the east side (VCH). (PastScape 397857)

For some time the power of the merchant oligarchy had been threatened by the populace, who had installed a democratic mayor, Thomas Fitz-Thomas, in 1263. Led by Hugh Despenser, the baronial justiciar, and with their own constable and marshal elected for the occasion, they made straight for Richard's manor of Isleworth, which he had surrounded with a ditch and stockade. They broke the head of the fishpond which he had constructed, at great cost, and destroyed everything that they could not steal. (Denholm-Young 1947)

Site now built over.
Links to archaeological and architectural databases, mapping and other online resources

Data >
PastScape   County HER            
Maps >
Streetmap   NLS maps   Where's the path   Old-Maps      
Data/Maps > 
Magic   V. O. B.   Geology   LiDAR   Open Domesday  
Air Photos > 
Bing Maps   Google Maps   Getmapping   ZoomEarth      
Photos >
CastleFacts   Geograph   Flickr   Panoramio      

Sources of information, references and further reading
Most of the sites or buildings recorded in this web site are NOT open to the public and permission to visit a site must always be sought from the landowner or tenant.
It is an offence to disturb a Scheduled Monument without consent. It is a destruction of everyone's heritage to remove archaeological evidence from ANY site without proper recording and reporting.
Don't use metal detectors on historic sites without authorisation.
The information on this web page may be derived from information compiled by and/or copyright of Historic England, County Historic Environment Records and other individuals and organisations. It may also contain information licensed under the Open Government Licence. All the sources given should be consulted to identify the original copyright holder and permission obtained from them before use of the information on this site for commercial purposes.
The author and compiler of Gatehouse does not receive any income from the site and funds it himself. The information within this site is provided freely for educational purposes only.
The bibliography owes much to various bibliographies produced by John Kenyon for the Council for British Archaeology, the Castle Studies Group and others.
Suggestions for finding online and/or hard copies of bibliographical sources can be seen at this link.
Minor archaeological investigations, such as watching brief reports, and some other 'grey' literature is most likely to be held by H.E.R.s but is often poorly referenced and is unlikely to be recorded here, or elsewhere, but some suggestions can be found here.
The possible site or monument is represented on maps as a point location. This is a guide only. It should be noted that OS grid references defines an area, not a point location. In practice this means the actual center of the site or monument may often, but not always, be to the North East of the point shown. Locations derived from OS grid references and from latitude longitiude may differ by a small distance.
Further information on mapping and location can be seen at this link.
Please help to make this as useful a resource as possible by contacting Gatehouse if you see errors, can add information or have suggestions for improvements in functality and design.
Help is acknowledged.
This record last updated 26/07/2017 09:21:01

Home | Books | Links | Fortifications and Castles | Other Information | Help | Downloads | Author Information | Contact