Does Sidcup have the best Mistletoe tree in the Borough?
I am not clear on the species of tree, but it is clearly a relative of the Horse Chestnut from the leaf shape. The population of Mistletoe in its boughs has been building quite rapidly over the last couple of years.
Mistletoe is a species that needs protecting in London. There is more information on Mistletoe conservation projects at The Mistletoe Pages: http://mistletoe.org.uk/homewp/index.php/conservation/conservation-in-britain/