This dataset was built on Tilia trees planted in parks in London, Birmingham (UK) and Les Fontaines (France). For these trees, two sets of data were acquired. At shoot scale, the length of the shoots, the number of leaves per shoot and the total leaf area per shoot were recorded. At the leaf scale, the area, the length and the width of each leaf were recorded. This dataset was published first in the Sustainability journal (volume and issue to be updated). See the Readme_Leaf.txt and Readme_shoot.txt files accompanying this dataset for details on variable units. (2021-12-09)