3-30-300

Our 3-30-300 service helps municipalities transform urban space so that every citizen has access to natural green spaces essential for mental and physical health, support biodiversity, and improve the local climate.

I am interested in 3-30-300

We help municipalities
Implementing a more effective urban greening policy
The 3-30-300 rule requires everyone to see three trees of larger size from their home, workplace, and place of study. It also establishes a minimum of 30% tree coverage within urban areas at the neighborhood level. No one should live more than 300 feet from a quality public green space of at least 0.5 acres. These rules are in line with WHO recommendations.

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What the 3-30-300 rule can offer you

Data from satellite imagery, city data, and expert best practices allow us to bring a new service to help cities and municipalities implement more effective urban green policies.

Three trees
3
Everyone should be able to see at least three mature trees from their home, work, and school.

The presence of trees brings daily contact with nature, which has a positive impact on mental health, increases a sense of calm, and reduces stress. Our service includes planning the planting and maintenance of trees to ensure they are healthy and provide maximum aesthetic and environmental benefits.
30% canopy coverage
30
The goal is to achieve a minimum of thirty percent tree canopy coverage in every urban neighborhood.

This dense coverage helps to regulate temperature, reduce noise, and improve air quality, bringing health benefits to all residents. Our services include strategic planning for planting new trees and caring for existing trees to achieve and maintain the desired level of coverage.
Accessibility to greenery within 300m
300
The aim is to ensure no one lives more than 300 meters from high-quality public green spaces such as parks, woodlands, or recreational areas.

This proximity to green spaces allows people easy access to natural areas, encourages physical activity, and improves social interaction between residents. We offer comprehensive urban planning and green infrastructure services that respect the local context and community needs.
Cecil Konijnendijk
Our cooperation with the author of the 3-30-300 rule
Cecil Konijnendijk, a professor at the University of British Columbia and an urban green space expert with a career spanning nearly 30 years, understood that simply spreading awareness of the importance of trees and green spaces was not enough. Cities and communities continue to lose their green spaces due to pressure from development, infrastructure, and other urban sprawl, while climate change brings additional challenges. In February 2021, Cecil introduced the 3+30+300 rule based on new research that combines metrics for exposure and access to trees and green spaces. Designed for urban policymakers and managers, the rule offers a clear and evidence-based framework for urban green spaces and has since gained global support.