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To test the newly developed Green Factor Tool for the City of Helsinki, with a focus on water management, two test sites (ätkäsaari pilot block and the three model yards in Kuninkaantammi) were created at residential blocks in Jätkäsaari and Kuninkaantammi. The tool itself is an Excel interface that calculates the quantity and quality of the city's green spaces per unit of area, It is part of the larger iWATER (integrated stormwater management) project (Ref 2). Specifically, after testing it on these two pilot sites, it is to support land use planning processes by providing a way to account for the quantity and quality of green space. The project aimed to analyze the cost-benefit of implemented sustainable stormwater solutions, compile stormwater-related planning tools as well as increase and strengthen the capacity of cities to work with stormwater issues (ref. 2).
One of the key objectives of developing the green factor method was to create green urban environments that have social value. Also, functionality was the second most important and cityscape (or landscape value) was the third most important category in green factor scoring.

An enterprise called Alicante Forestal constructed a vertical garden in Mallorca, in an office in Santa Ponca (Ref 1). The garden was installed indoors, making a green wall in the headquarters of the local business (Ref 1). There is in 2020 not only this garden, but a service given by Alicante Forestal in Mallorca to design and install these in other parts of Spain, as well as courses for building these gardens in different countries in the world including Spain, Colombia, Ecuador, Argentina and Mexico (Ref 3).

This project deals with the creation of a green roof and a green area around the new headquarters of the IDOM Group (an independent multinational company that offers professional integrated services in Consulting, Engineering and Architecture around the world), located in an old French warehouse (a customs warehouse) on the Deusto canal in the port of Bilbao. It has an area of ​​14,400 m2 dedicated to offices, research and development spaces such as white room and workshop prototypes, and social spaces. (Ref 1)

Parque Central da Asprela is being designed by a team of specialists who see the great challenge of hydrographic control of Ribeira da Asprela and all other surrounding streams as an opportunity to create a unique landscape space in Porto, pleasant not only for the enjoyment of population but also as a crossing solution (pedestrian or cycling) for the academic community that daily studies and works in this area of ​​the city. The park is part of the green lung of the city. This NBS is a continuation of an action implemented in 2015 by the Municipality of Porto that had in mind the creation of a park which eventually had to be renovated and integrated and this is how this new NBS came to be implemented. (1)

The landscaping of the Vuosaari landfill site has appeared to be an excellent example of ”Integrated Planning Approach” as following concepts were applied: restorative design; ecological design; regenerative development and conventional design (ref. 1). The unused Vuosaari landfill hill had been transformed into a natural area where now domestic plants grow in meadows and rocky conditions. The area is now also used for recreational, educational and scientific purposes (ref 1, 2). The purpose of the project was to promote social, economic and environmental activities at the Vuosaari landfill site (ref. 1).

The experimental green facade system consisting of four different types of green wall was installed in Nurnberg from 2013 until 2016 on Adolf-Braun-Strasse 33 and is an integrated greening system that enables self-sufficient, low-maintenance "hanging gardens" on facades and other vertical walls. The aim of the project is to experiment with recreating green spaces in the streets, asphalt surfaces, and backyards of some parts of Nuremberg overcoming numerous constraints and competing uses (1) The implementation has helped improve air quality, thermal insulation, wind and rain protection and lowering local temperatures in its proximity. (2)

Kuninkaantammi is a new energy- and eco-efficient residential district by the Vantaa River and Helsinki’s Central Park that is in the construction phase with a dense urban design, consistent with the ecological, experiential and community requirements of modern housing. It will become a climate-smart neighbourhood for 5,000 inhabitants. Environmental factors have already been noted in the zoning of the area, and energy efficiency guides the design and building processes.
Kuninkaantammi will be a pilot project for stormwater runoff management in Helsinki using green infrastructure. The construction is ongoing (2013-2025). Management of storm waters in the area will be carried out through natural methods (ref. 1, 11).

The Podlasie Opera and Philharmonic – European Art Centre in Białystok ("green opera") in Białystok, is known for its green roofs, green walls and extensive gardens, which perfectly harmonize with the surroundings. The green area serves as a platform for cultural events and successfully promotes the city. Opera gardens are divided into several levels with lawns, walking paths, bridges, sculptures, and small ponds. Different green elements of the building reduce heat effect and noise, increase the thermal insulation of the building, improve local biodiversity and limit rain drainage to the city centre [1].

The company running the Zabalgarbi waste disposal site manages a solid waste–to-energy plant and also houses a mechanical biological treatment (MBT) plant, a composting plant, a landfill and a leachate treatment plant. During construction of the first plant, Zabalgarbi regenerated and recovered the entire Artigas-Arraiz area covering 108 hectares. The area was degraded by shaft mining activity and an opencast quarry. The project aimed at the reforestation and landslide mitigation of this degraded area. Today the area has been reforested, trails were built and space provided for people to enjoy themselves in gardens, picnic areas and along forest tracks. (Ref 1)

The re-urbanization of the Poligono de Levante neighbourhood included the creation of two large urban parks to form a green area of 47 722 m2 and several environmental considerations such as a bridge for fauna (Ref 1), as it is a strategical zone of Palma . It is a combination of different initiatives, some of which include green elements (Ref 1 and Ref 3).