Regenerative urbanism is searching for its standards

Local authorities are now expected to demonstrate their ability to combine urban development with ecological regeneration. This requires indicators, tools, and agreements. But this guarantees nothing if these elements are neither verified, nor comparable, nor enforceable.

What the 3-30-300 measures… and what it doesn't measure

The “3-30-300 rule” proposes a minimum:

• View of 3 trees,
• 30% canopy,
• Park less than 300 meters away.

These figures create a spatial representation of urban vegetation. But they do not assess actual biodiversity, soil functionality, or overall ecological resilience.

These are comfort thresholds, not ecological management tools.

Agreements and platforms: is declaration the norm?

From Berlin to Montreal, many cities are making commitments through pacts or platforms like CitiesWithNature. They declare their intentions, share actions, and communicate about their progress.

But without a certified measurement method, these approaches remain unauditable. Yet the Global Biodiversity Framework (GBF), the green taxonomy, and ESG standards all require evidence.

IRICE provides the missing structure

Effinature, an independent reference framework supported by IRICE, allows a public or private project to:

• to measure its actual ecological pressures,
• to certify its effects on local biodiversity,
• demonstrate its compliance with European regulatory expectations,
• to enter into a verifiable regeneration logic.

Effinature does not replace existing indicators. It stabilizes and organizes them into a grid of evidence.

The promise is no longer enough

What is emerging now is not a competition of initiatives, but a growing demand for reliability. European institutions, investors, extra-financial rankings… all will rely tomorrow on certified frameworks of evidence, not on declared intentions.

IRICE allows us to establish this proof. Completely independently. Because biodiversity isn't proclaimed. It's demonstrated.