Wigger Tims
Expert Nature & Landscape
Measure green living quality.
Understand how accessible and visible green space is for residents. Turn a global KPI into actionable local insight.
Green space is essential, but unevenly distributed
Urban green space plays a key role in:
- Health and wellbeing
- Climate resilience
- Quality of life
But in many cities:
- Green is unevenly distributed across neighbourhoods
- Accessibility varies widely
- Tree coverage is often below target levels
- Insight is fragmented or missing
Municipalities need to answer:
- Do residents actually experience green in their daily environment?
- Which neighbourhoods lack access to green space?
- Where should we invest to improve liveability?
Without a clear KPI, green policy remains abstract.
From global KPI to local action
Terramira translates the 3-30-300 rule into concrete, location-based insight.
Not just a concept.
A measurable index.
Ready to use for policy and communication.
Measure visibility. Coverage. Access.
We calculate the three components of the 3-30-300 rule using spatial data.
We assess whether residents can see at least 3 trees from their surroundings.
We calculate the percentage of tree canopy within a defined area around homes.
We measure the walking distance to accessible recreational green space.
We translate these indicators into clear, comparable insights.
At:
- Building level
- Street level
- Neighbourhood level
- Municipality level
From green ambition to visible results.
Strong communication tool
Translate complex spatial data into a simple, understandable story.
Monitoring over time
Track improvements as cities invest in green space.
Support policy and programs
Guide greening initiatives, tree planting and urban design.
Widely adopted, easy to understand
The 3-30-300 rule is internationally recognized and widely used by cities and organizations.
It provides:
- A simple and communicative framework
- A consistent benchmark for urban green quality
- A strong link to public perception and experiences a consistent and repeatable way to evaluate ecological potential across urban areas.
For liveability and urban quality
Municipalities
Monitor and improve green living environments
Urban development projects
Assess and improve neighbourhood design
Public policy programs
Support health, climate and livability goals
Frequently Asked Questions
It is a global guideline stating that every resident should see 3 trees, have 30% tree canopy in their neighbourhood and live within 300 meters of green space.
It measures the accessibility, visibility and presence of green space in urban environments.
No. It measures perceived green quality and accessibility, not ecological value.
Tree canopy helps reduce heat, improve air quality and increase liveability.
Yes. The analysis is designed for detailed, local insight.
Understand how your city performs and where to improve.
Wigger Tims
Expert Nature & Landscape
