It is an old road, recorded back to 1597, which is now a quiet country lane. The path is lined with ancient hedgerows and there are old oak, field maple and ash treees. Honeysuckle and black bryony provide evidence of the hedgerow's antiquity.
The path skirts Edgwarebury Cemetery, and in 2008 Belsize Square Synagogue applied to extend the cemetery with access across Clay Lane. The application was opposed by members of the London Wildlife Trust and the Royal Society for the Protection of Birds. who argued that the extension would be environmentally damaging, and in 2009 Barnet Council rejected the application. The London Wildlife Trust applied to have Clay Lane designated a Village Green under the Commons Registration Act, 1965, which would permanently protect it against development. The Synagogue appealed against the rejection, and in 2010 the appeal was successful with a reduction of the crossings of Clay Lane from three to one. The scheme was then carried out.
Clay Lane runs between Bushfield Crescent and Edgwarebury Lane.
- "iGiGL – helping you find London's parks and wildlife sites". Greenspace Information for Greater London. 2006. Archived from the original on 15 October 2012.
- "Clay Lane". Greenspace Information for Greater London. Archived from the original on 24 December 2012. Retrieved 31 August 2012.
- T F T Baker; et al. (1971). "A History of the County of Middlesex". Victoria County History. Retrieved 31 August 2012.
- Alex Hayes (14 October 2009). "Councillors vote to reject Edgware cemetery proposals". Edgware & Mill Hill Times. Retrieved 31 August 2012.
- Jennifer Vyse (12 August 2010). "Appeal Ref: APP/N5090/A/10/2122850 Edgwarebury Cemetery, Edgwarebury Lane, Barnet, London HA8". The planning Inspectorate. Retrieved 31 August 2012.