3-30-300: Three numbers. One Town. Plenty to learn.
The 3-30-300 principle has become one of the most talked-about ideas in urban forestry. It’s wonderfully simple: everyone should be able to see three trees from their home, live in a neighbourhood with 30% tree canopy cover, and be within 300 metres of a good-quality green space.
Simple to explain. But what happens when you actually apply it to a real town?
Join Treeconomics for a free webinar exploring the thinking behind 3-30-300, what the data can tell us, and what councils can learn.
We will be joined by two fantastic guest speakers:
Dr Cecil Konijnendijk, the urban forester who proposed the 3-30-300 principle, will take us back to where it all began. Cecil will explore why he developed the principle, the evidence and thinking behind those three numbers, and how 3-30-300 has grown from a simple idea into an internationally recognised benchmark for greener, healthier neighbourhoods.
Scott Watson, Arboricultural Officer at Hartlepool Borough Council, will share what the council discovered from its assessment in 2026: where the town performs well, where the gaps are, what surprised them, and how the findings will help with future planning.
We’ll also explore some key questions… Does good canopy cover necessarily mean residents experience plenty of trees? Can a town have lots of green space but still leave some communities low on trees? How can 3-30-300 data help councils decide where limited resources could make the biggest difference?
Whether you work in trees, parks, planning, green infrastructure, climate, public health or placemaking, this will be a practical introduction to a simple idea for planning and managing tree and green space access.
