Penne's Place moated site, Aldenham


Heritage Category:
Scheduled Monument
List Entry Number:
Date first listed:


Ordnance survey map of Penne's Place moated site, Aldenham
© Crown Copyright and database right 2019. All rights reserved. Ordnance Survey Licence number 100024900.
© British Crown and SeaZone Solutions Limited 2019. All rights reserved. Licence number 102006.006.
Use of this data is subject to Terms and Conditions.

The above map is for quick reference purposes only and may not be to scale. For a copy of the full scale map, please see the attached PDF - 1013001 .pdf

The PDF will be generated from our live systems and may take a few minutes to download depending on how busy our servers are. We apologise for this delay.

This copy shows the entry on 15-Oct-2019 at 10:49:34.


The building or site itself may lie within the boundary of more than one authority.

Hertsmere (District Authority)
National Grid Reference:
TQ 16648 96868

Reasons for Designation

Around 6,000 moated sites are known in England. They consist of wide ditches, often or seasonally water-filled, partly or completely enclosing one or more islands of dry ground on which stood domestic or religious buildings. In some cases the islands were used for horticulture. The majority of moated sites served as prestigious aristocratic and seigneurial residences with the provision of a moat intended as a status symbol rather than a practical military defence. The peak period during which moated sites were built was between about 1250 and 1350 and by far the greatest concentration lies in central and eastern parts of England. However, moated sites were built throughout the medieval period, are widely scattered throughout England and exhibit a high level of diversity in their forms and sizes. They form a significant class of medieval monument and are important for the understanding of the distribution of wealth and status in the countryside. Many examples provide conditions favourable to the survival of organic remains.

Penne's Place moat is a good example of a double moated site, and has well documented connections with the Penne family dating back to the 13th century. The moat displays a diversity of features including an external bank and associated pond. As illustrated by observations in 1962-4, despite later alterations the site retains significant archaeological potential.


The monument includes the remains of a Medieval moated site. The double island site consists of two rectangular enclosures. The eastern enclosure measures c.55m by 130m inclusive of the 12m wide surrounding water-filled moat. The enlarged south arm has been adapted to form a concrete-lined bathing pool in the last century. Three weirs within this moat are also later ornamental features. Within its interior is a rectangular pond measuring 55m by 8m. The remaining area is flat apart from a modern wall and pit (excluded from the scheduling). A 0.7m high external bank flanks the eastern arm of the moat. The second enclosure, immediately to the west originally measured c.60m by 105m. Only the north arm currently survives as an earthwork feature, crossed by a modern causeway. The remaining west and south arms have been infilled in the past. The flat interior is interpreted as the site of Penne's Place manor house. The surface make-up of the road crossing the area is excluded from the scheduling although ground beneath is included.

MAP EXTRACT The site of the monument is shown on the attached map extract. It includes a 2 metre boundary around the archaeological features, considered to be essential for the monument's support and preservation.


The contents of this record have been generated from a legacy data system.

Legacy System number:
Legacy System:


Books and journals
The Victoria History of the County of Hertfordshire: Volume II, (1908), 121
Lawrence, A, The Aldenham House Gardens, (1988), 38-9
Title: Aldenham House and Park Source Date: 1842 Author: Publisher: Surveyor: Reproduced by Lawrence ref [2]


This monument is scheduled under the Ancient Monuments and Archaeological Areas Act 1979 as amended as it appears to the Secretary of State to be of national importance. This entry is a copy, the original is held by the Department for Digital, Culture, Media and Sport.

End of official listing

Your Contributions

Do you know more about this entry?

The following information has been contributed by users volunteering for our Enriching The List project. For small corrections to the List Entry please see our Minor Amendments procedure.

The information and images below are the opinion of the contributor, are not part of the official entry and do not represent the official position of Historic England. We have not checked that the contributions below are factually accurate. Please see our terms and conditions. If you wish to report an issue with a contribution or have a question please email [email protected].