At PHYSI we believe in evidence-based decision-making: be it in local government or business.

Our services are based on two tested and science-based/peer-reviewed nature-based solutions (NBS) tools: The Urban Nature Atlas and the Urban Nature Explorer. Both tools were created and developed as the products of the NATURVATION Horizon 2020 project. Since the termination of NATURVATION, we - a small group of researchers working on the tools from the beginning - have taken over their management, maintenance and further advancement under the egis of PHYSI.

Our Tools

Global database of urban NBS

UNA is currently the most extensive urban NBS database with cases and best practices from around the world.


UNE supports the creative process of urban planning by visualization of different scenarios.

Projected future impacts

UNE impact assessment is based on extensive research and modelling for NBS implementation.

NBS modeling

Our Tools help in creating NBS impact models for business or educational purposes.

Database services

We provide personalized services utilizing our extensive database for individual, specialized NBS design projects.

NBS simulation tool

Urban Nature Explorer

The Urban Nature Explorer (UNE) is a web-based platform for early-stage, participatory planning, addressing urban sustainability challenges through the application of NBS. UNE has a map-based interface that allows contextual customization with real-time impact assessment, offering potential NBS to tackle local climate challenges. It is a full-fledged, autonomously usable tool to let people creatively and collaboratively experiment with solutions in a digital representation of their neighborhood, focused on challenges they care about.

We offer to tailor the tool according to specific local contexts, including:

customization to local challenges
technically feasible NBS according to location
stakeholder engagement
scenario projections
visual impacts representation

Urban Nature Atlas

The Urban Nature Atlas (UNA) is a knowledge base dedicated to showcasing the richness and value of NBS in cities worldwide. It is the most comprehensive database of urban NBS to date. Since its creation, the database has been reviewed and extended to stay relevant and useful for practitioners. The UNA was developed in 2017 as an output of Naturvation project by Central European University (CEU) in collaboration with the Ecologic Institute and with further support by Durham University.

more than 1200 NBS cases
worldwide coverage
global focus on climate
advanced custom-developed search engine
resource for policy-makers and practitioners
intuitive interface
Database & inspirational tool

Start a Regeneration Action

Partner with us in your next urban development project.

Build and explore NBS scenarios

Understand the transformative power of NBS.

Calculate the impacts

Review indicator scores and distance to targets as you add NBS.

Choose Solutions

Bring out the most value of your urban NBS.

Research and Monitoring

Monitor the impact of NBS for long-term success.

Where can we help?

Regenerative businesses

We consult corporate businesses on how to enhance their surroundings in a green way that also creates a healthy work environment with NBS.

Sustainability Education

We develop and deliver training, workshops, capacity building and education materials on urban nature implementation and on NBS.

Research collaboration

We are actively participating in research projects and are open to collaborations in the field of NBS, urban nature planning, impact assessment, digital modelling and more.

Municipal developments

We support decision-making on the municipality level about the scaling and deployment of urban nature-based solutions and green urban planning efforts.

NGOs & City Associations

We support bottom-up community organizations aiming to connect and enhance their local neighborhood through greening and conscious planning.

Urban professionals

We offer technical support to urban professionals in their work with creative visualization, impact assessment with the use of our Urban Nature Atlas and Explorer tools.