Achieved impacts

The reserve is a biodiversity hot-spot within Cardiff Bay. The reedbed and other aquatic plants, are very productive vegetation and a habitat for birds. Prior to the construction of the Cardiff Bay Barrage, it was made up of mudflats and salt marsh. (Ref 1) The site was chosen by Cardiff Harbour Authority to create a new environment and compensate in part for the loss of the mudflats which were submerged after completion of the Cardiff Bay Barrage. Floating timber structures serve as breeding areas for birds, an underwater bund prevents wave erosion, and a boom keeps out waterborne debris (Ref 5).

An urban garden on a private citizen's terrace in the city of Aix en Provence, has been created with the help of the organization "Pays d'Aix en Transition" working towards permaculture and urban gardening. The main objective of this urban garden is to produce vegetables and fruit for personal consumption, to install plants in a very urban environment, and use permaculture techniques. Another objective is to grow climbing plants to decorate the walls. (Ref.1 )

Cardiff City Council and Urban Buzz brought together local organizations, community groups supporting wildlife, to create environments to encourage more bees, butterflies, hoverflies and other insects. (ref 1). One project inspired by Urban Buzz is Pharma Bee, a project housed and run by Cardiff University’s School of Pharmacy and Pharmaceutical Sciences, that worked to create a bee-friendly campus through their PharmaBees team (ref 7). In association with Urban Buzz, a project run by BugLife, it renovated the Cardiff University’s Redwood Building by planting bee-friendly plants (ref 2), installed beehives and trained bee-keepers (ref 7). The efforts were then expanded to the Hayden Ellis building on Cardiff University's campus (ref 7).

In 2013, St Davids shopping centre, which has over 200 stores and restaurants (ref 5) completed the installation of a green roof, which included bird boxes and beehives and the centre is looking to expand its green roof further. The city shopping centre has become the home of a 60,000-strong colony of bees. A second green roof was developed in 2015 in the parking garage to expand educational programs (ref 4). School children from Cardiff were involved in the planting of seedlings to create pollinator habitats for bees, butterflies and other local wildlife around the ‘Hayes’ area (ref 3). The customers and local community, with the help of this project, have been taught about the value of adopting an eco-friendly approach to public space. (ref 1)

The Interpretation Centre at the Cardiff Castle is displaying a green roof of wildflowers. As well as changing the look of the roof, the wildflower meadow has increased the biodiversity of the area. The nectar-rich species of wildflower turf attract bees, butterflies and other pollinators. The roof had a simple irrigation system built into the substrate where the maintenance would be minimal (ref 3).

In response to floods that had been afflicting the Rhiwbina area of Cardiff, a capital scheme was promoted in order to develop an integrated Rhiwbina Flood Defence Scheme. First, a pond was built in the Caedlyn Park to capture peak flows during extreme rainfall (ref 2; ref 8). The City of Cardiff also built low walls alongside the brook that flows through the neighbourhood to better channel water while also removing debris and reinstating the banks that had eroded over time (ref 1; ref 2). Additionally, by realigning and widening the watercourse, establishing earth bunds and creating a large attenuation pond downstream that aligns with the drainage system (ref 7). Taken together, flood risk decreased for the area overall, assisting local residents.

The project involves the BBC Drama Village - a combination of studios and stores with associated offices and technical suites. It was the requirement for all buildings to achieve a BREEAM Excellent standard (ref 1). GreenBlue Urban structural RootCell systems were used for this development to create adequate tree root volumes, to ensure optimum tree establishment and growth in a demanding coastal location (ref 2). A Living Wall has been made which has a number of functions including the provision of a new home for solitary bees, lacewings and other invertebrates. A rainwater harvesting system has been installed (ref 1). Speaking generally, the studio, stores and office amounted to over 18,000 square meters and 900 new meters of HV, gas water drainage and telecoms (ref 1). Areas of eco-design include transportation, energy efficiency, water efficiency, materials, indoor environmental quality, waste reduction and biodiversity (ref 1).

In the new district ‘Kop Zuidas’, water green strip is created along the sidewalk in which stormwater is temporarily stored by means of high-grade vegetation and a drainage system. The stormwater slowly infiltrates into the soil and only reaches the sewage system in case of extremely heavy rainfall. It is a pilot project for stormwater retention and will be upscaled throughout Amsterdam when successful. (1,2)

The project created a friendly green recreation area for the elderly in the neighbourhood where there is a lack of spaces dedicated to the elderly. The plans involve the revitalization of a neglected square, plantings assorted greenery and preservation of the existing trees. The NBS should foster physical activity and social inclusion of the elderly residents in the neighbourhood, as well as to lead to the revitalization of the district and improved standards of living [1,2].

The initiative aimed to create a layout of flowers and perennials in the green belt at Ogrodowa Street in the urban area where historically gardens were located. The initiators also took care of the existing tree crowns. The project has created a green enclave in the very heart of the city, a place for walking and relaxation. It has improved the image and increased the attractiveness of the area. The local community is involved in planting and maintaining the flowerbed [1,2].