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South Mimms Conservation Area

Last Modified May 28, 2020

South Mimms Conservation Area was first designated in 1998. It includes the historic core of the village of South Mimms, contained within the linear development along Blanche Lane from the thirteenth century church of St Giles to the small village green and westwards up to the M25 motorway.   

We are currently reviewing the conservation area to see whether any additional locations should be included, or if any others need to be removed. We consider how the area can be best protected as a historically important part of the borough, and consider good, neutral and poor features of the area so that recommendations for improvement can be made and areas can be preserved for the future.

A draft version of the Conversation Area document can be found here.

South Mimms Draft Conservation Area Appraisal - 2020 (PDF 13.6Mb)

As part of this review a new Conservation Area boundary is proposed. This reflects the changing methodologies of good practice and provides a robust boundary which includes the important aspects of South Mimms' unique built environment. The following revisions are being proposed:

  • Removal of verges and front gardens along the eastern side of St Albans Road, including the roundabout with Cecil Road.
  • Removal of two small areas of land to the south and west of the existing conservation area, and the removal of an open piece of agricultural land to the north-west.
  • The addition of a locally listed pair of semi-detached properties, Hazeldene and Hazelmere, along the eastern side of St Albans Road.
  • The addition of two large Edwardian detached properties of Igham Lodge and Cedar Lodge, on the western side of Greyhound Lane; and the recently constructed New Grange off Blanche Lane.
  • The addition of two small areas in order to rationalise the conservation area boundary. The car park adjoining Arlingham House to the north and the rear property boundaries on the western side of Hamilton Close.


The next step will be to conduct a formal consultation on the draft conservation area appraisal and proposed conservation area boundary. The exact details of how and when this consultation will take place are yet to be confirmed and will depend on guidance from government around the lifting of lockdown and how planning consultations can be undertaken. However, if you do wish to make comments now you can email the local plan team (local.plan@hertsmere.gov.uk).

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