Urban Nature Platform

Assessing the impacts and benefits of Nature-Based Solutions in urban environments

Urban Nature Platform: the decision-support tool
that brings the HIBOU method to life

Transforming an environmental ambition into effective and responsible action

Welcome to the Urban Nature Platform, the operational interface of the HIBOU method: a hybrid, multi-criteria and integrated approach designed to assess the impacts and benefits of nature-based solutions (and their alternatives) in urban environments.

This platform enables local authorities, developers, consultancy firms, experts and project managers to understand how planning and design choices affect major urban challenges. It supports informed decision-making by aiming to maximise the ecosystem services delivered by a project while minimising its environmental impacts.

Why HIBOU ?

The ecological transition places the need to bring nature back into cities at the heart of current debates, as its potential makes it possible to address multiple challenges simultaneously: reducing urban heat islands, preserving biodiversity, managing stormwater, and improving quality of life, health and well-being.

Yet today, stakeholders often lack:

  • Objective methods
  • Quantitative indicators
  • Suitable tools to compare scenarios
  • Evidence to justify their choices to elected officials, funders or citizens.

HIBOU addresses these needs by assessing six major urban challenges through a coherent and harmonised set of indicators. It makes it possible to turn a qualitative ambition (“more nature in the city”) into robust, quantified and comparable assessments.

HIBOU rosace

The Urban Nature Platform makes these assessments simple, accessible and reproducible. It delivers them in a ready-to-use format for public and private decision-making. The platform represents the first digital implementation of the method, enabling the gradual integration of all calculation engines developed by CSTB and its partners. At this stage, only the calculation engine for the Harmonised Biotope Area Factor (BAFh) is available on the platform.

What you can do with HIBOU

1. Carry out a site diagnostic

Get a clear understanding of site-specific challenges before the project: biodiversity potential, stormwater infiltration capacity, urban heat issues, etc.

2. Compare multiple development scenarios

The method allows you to test different choices:

  • 🌱 greening / de-paving
  • 🌧 swales vs grey infrastructure
  • 🌡 shading vs thermal inertia
  • 🏢 density, materials

It calculates the impacts for each challenge and highlights the trade-offs for decision-making.

3. Monitor the project’s progress over time

You can evaluate the pre‑design phase, the selected project, the built version, and then the operational life phase. This approach ensures monitoring of the achievement of objectives—an essential step in an increasingly demanding, multi-criteria environmental regulatory context.

A method available at three levels

You can evaluate the pre‑design phase, the selected project, the built version, and then the operational life phase. This approach ensures monitoring of the achievement of objectives—an essential step in an increasingly demanding, multi-criteria environmental regulatory context.

HIBOU version

🚀 Take action: choose the level that suits your needs

The HIBOU method adapts to every stage of development projects.
Whether you want to raise awareness, compare scenarios, or conduct a full analysis, choose the version that matches your objective.

HIBOU Flash
  • → Raise awareness, guide, support dialogue
  • → 1 indicator per challenge
  • → Minimal input data
  • → Diagnostic
HIBOU Mid-level
  • → Analyze, make trade-offs, design
  • → Multiple indicators per challenge
  • → Planning, design
HIBOU Expert
  • → Deepen, simulate, control
  • → Multiple advanced indicators per challenge
  • → Research