AIPH Green City Guidelines: Case Studies

The AIPH Green City Guidelines present case studies from around the world to illustrate how the green city principles have successfully been implemented.

Each case study was prepared using documentation that was publicly available and interviews with key stakeholders. By consulting practitioners and authorities who were directly involved in the project, we present case studies with deeper insights into the motivation, delivery mechanisms, adoption challenges and broader learning. We consider the development of the project from the design and implementation stage, extracting insights into why it was successful, what was learnt during the project, and what influence it may have had on other projects and sustainability decisions and policies, locally, nationally, and internationally.

This collection is divided into four sections:

Ornamental Horticulture in Urban Greening

The ornamental horticulture industry makes a significant contribution to city greening initiatives. These case studies are are examples from around the world that demonstrate the increasingly influential role that the ornamental horticulture industry is playing in creating and maintaining green cities.

Four City scales

One case study is presented for each of the four landscape scales that were the focus of the 2020 AIPH Green City Guidelines.

  • Green cities: On a city scale the inclusion of living green relies on integrated planning.
  • Green neighbourhoods: Implementing urban greening at a neighbourhood scale enables context to cultural and climatic variations and focus on specific goals, such as water management and biodiversity.
  • Green Streets: Many of the benefits of living green in urban environments are experienced on a local scale, such as air quality improvements and reduction of the urban heat island effect.
  • Green Buildings:  Hard infrastructure that incorporates living green and nature-based-solutions reduces the environmental impact and supports energy efficiency and resilience.

Climate zones

Three case studies are presented to illustrate the interpretation of the green city principles in different climatic zones


Recognising that not all cities are the same, we present case studies in  3 different city typologies.

Full Case Study Collection Map