As mentioned on Twitter last week, I have discovered some tree data from Lewisham Council so I have been busy trying to map this (not without its challenges as there are ~30,000 data point included in the files).
The map so far is below (styled in the same way as the original map).
(Click on the arrows in the top-left to view fullscreen, click on the trees to view information on species, age, condition etc.).
More to follow this weekend – watch this space!