The plaque above contains the following information (see below):
Just a brief word about the London Plane Tree in Festival Walk, Carshalton: it was measured by the Forestry Commission in March 1964 and was found to be 123ft tall. It has a girth of 20ft 11in at a height of 5ft above ground level. It is (or was in March 1964) the tallest London Plane tree known in Britain and is one of the very few trees of any kind to exceed both 120ft in height and 20ft in girth. The age of the tree is not know with accuracy but is likely to exceed 200 years. Being that 1964 was over 40 years ago, the tree must now exceed 240 years old.
If you would like more information on Carshalton, a London suburb, click here.