St Margaret, Ridge
Ridge is located in Hertfordshire
Location within Hertfordshire
Population177 (2011 census)
Civil parish
  • South Mimms and Ridge
Shire county
Sovereign stateUnited Kingdom
List of places
51°41′N 0°14′W / 51.683°N 0.233°W / 51.683; -0.233

Ridge is a village and former civil parish, now in the parish of South Mimms and Ridge, in the Hertsmere borough of Hertfordshire, situated between Potters Bar and Shenley. At the 2011 Census population of Ridge parish was 177.[1]

It has a church, St Margaret's; a children's playground; and the Old Guinea public house, which serves food on most days. The village holds an annual fete on the August bank holiday. Ridge is surrounded by countryside with numerous public footpaths. In 1926, the parish boundary between Ridge, Hertfordshire, and South Mimms, Middlesex, was subject to a minor adjustment.[2]

Clare Hall in Ridge is a former manor house, built around 1745 by Thomas Roberts, a linen draper from St Albans. It was originally called Clay Hall and renamed Clare Hall in 1750. From 1886 to 1974, Clare Hall was used as an isolation hospital for diseases including smallpox and tuberculosis. It was taken over by the Imperial Cancer Research Fund in 1980 as a research laboratory. It is now part of the Francis Crick Institute.[3]

Field Marshal Harold Alexander, 1st Earl Alexander of Tunis, the World War II commander and former Governor General of Canada, is buried in St Margaret's churchyard.[4]


On 1 April 2023 the parish was abolished and merged with South Mimms to form "South Mimms and Ridge".[5]


  1. ^ "Civil Parish population 2011". Neighbourhood Statistics. Office for National Statistics. Retrieved 1 November 2016.
  2. ^ M. of H. Provisional Orders Confirmation (No. 10) Act 1926
  3. ^ "Our founding institutes: Clare Hall". The Francis Crick Institute.
  4. ^ Office of the Governor General of Canada. "Governor General > Former Governors General > Field Marshal the Earl Alexander of Tunis". Queen's Printer for Canada. Archived from the original on 9 October 2006. Retrieved 20 March 2009.
  5. ^ "The Hertsmere Borough Council (Reorganisation of Community Governance) Order 2022" (PDF). Local Government Boundary Commission for England. Retrieved 13 May 2023.

Media related to Ridge, Hertfordshire at Wikimedia Commons