The 3+30+300 Rule and Cohort Informational Webinar
A Data-Driven Approach to Urban Greening
April 16, 2025 Noon MT
The 3+30+300 Rule and Cohort Informational Webinar
April 16, 2025 @ Noon MT
Every webinar attendee receives a FREE 3+30+300 map of your City!
The 3+30+300 Rule, developed by Dutch professor Dr. Cecil Konijnendijk, is the global standard for urban greening. This rule helps cities plan for better health, climate adaptation, and biodiversity. By understanding how neighborhoods and buildings score, cities can set priorities and green effectively. These scores also spark discussions with policymakers, residents, and businesses about where greening is most needed.
🌳 3 trees visible from every home
🌳 30% tree canopy in every neighborhood
🌳 300 meters to the nearest public green space

Widely adopted across Europe, this approach provides a new, actionable lens for tree equity and urban greening in North America.
In This Webinar We Will:
1. Examine The 3+30+300 Rule
2. Explain the details of the 3+30+300 cohort program.
3. Give you one free 3+30+300 Map of Your City just for joining the webinar
Ideal Participants:
✔ Urban forestry professionals
✔ Sustainability & resiliency planners
✔ City officials & policymakers
✔ GIS & data analysts
What is the 3+30+300 Cohort?
Be among the first U.S. and Canadian cities to apply the 3+30+300 framework with data-driven insights and peer collaboration. Your participation will help shape how communities in North America incorporate this proven model into planning, policy, and action. Learn more about the cohort here
Complete the form to reserve your spot, learn, get a free 3+30+300 map, and consider joining the cohort!