Vacant space model

In 1995 the city of Munich decided to implement a new green residential district in the derelict area of the former Munich-Riem airport which was closed in 1992. (Reference 9) The area was designed to have an intensively used residential area in the north and an extensively used green recreational area in the south. The project was completed in 2005. It is 210 hectares large, making it the third-largest public park in Munich. (Reference 1) The park includes a 10-hectare large artificial lake, a 15-hectare large forest and two 20 meter high artificial observation and toboggan hills made from the demolition material of the former airport. (Reference 9) The park is appreciated by people but concerns about the loss of biodiversity have been raised. Citizens use the park for walking, cycling, swimming in the lake or simply for relaxation. (Reference 4)

The project was born from the purchasing of an ex-military area in the Flaminio neighbourhood and the decision to build a city of science with a museum, a public park and residential areas that will have green roofs and sustainable, energy-efficient building. The project was proposed to several architectural studios and the Studio 015 Paola Viganò is the one who got assigned the project in 2015 (3).
Due to changes in public administration and financing already found in 2017 (7), the project still has not started (2020), as in 2019 the citizens were once again consulted over the works and the project (7). Initially, the project should end in 2023 (should last 8 years) (4).

This blue and green infrastructure project of Bergen involves the development of a river park with riverside promenades, bridges and recreation areas. Bergen municipality wishes to develop the area along the Møllendalselven to a park that in the long run will extend from Store Lungegårdsvann to Svartediket and further up to the mountains. The area's industrial history forms the backdrop of a new park that will act as a green lung for the city's residents, both locally and in a slightly larger perspective, where Møllendalselven will become the central element. (Ref. 1, 2)

The OrtoCollettivo project focuses on the creation of common spaces to grow local sustainable food while raising awareness about environmental challenges in cities. The project is based on teamwork: if there is work planned for today and someone cannot come to do that job, someone else will do it, with the ultimate benefit of everyone. It, therefore, stimulates common values about well-being, sustainable food production, and sharing time and activities collectively as a group (2). The initiative is ongoing and expanding, however in 2020 there were voices from the people living in the area that the poor maintenance of the terraces caused landslides and disturbed traffic. Nevertheless the NGO that initiated the intervention defended the project and suggested that the issue is caused by the lack of canals for the rain water to flow in. (8)

The association Initial Karlsruhe initiated the "social garden" in 2009 with the objective to facilitate access to the labour market for disadvantaged individuals by providing employment for long-term unemployed individuals with gaps in their CV. (Ref. 1) The participants can work on a 6000 sqm large former agriculture area up to six hours per day under the supervision of an agrarian engineer and a professional gardener. Harvested products are delivered by bicycle to charitable organizations free of charge. (Ref. 2, 9, 10)

O'pflanzt is! is a community garden in the inner part of Munich. It was founded in summer 2011 by Vanessa Blind. Her vision was to create an urban, socio-ecological community garden - a place of planting, sowing and harvesting, a place for meeting and learning, a piece of nature in the city, a creative wilderness. The garden is a real community garden, as there are no individual beds, and decisions are made collectively. Sustainable production is one of the main goals of the project, which is why planting is done organically without synthetic fertilizer and only wood and recycled materials are used. (Reference 2) In 2018, the area of the garden had to be returned to its owners. The leaders of the garden, however, managed to find a new plot within a year and a half. (Reference 13)

Craigmillar Town Centre Temporary Greening project transformed a vacant development site in Craigmillar which is reserved for a new high school, not scheduled to be built until late 2020, into a temporary green space. The site is at the centre of the wider Craigmillar regeneration area, adjacent to the newly-built Community Hub and neighbouring plots at varying stages of development. EDI's PARC Craigmillar Ltd is responsible for the regeneration in Craigmilar, working in partnership with Edinburgh & Lothians Greenspace Trust (ELGT) and the City of Edinburgh Council. The initiative will create a meanwhile space for community use, while works begin on the town centre development. The greening will allow the area to become an active space for the local community to enjoy and ease the construction process. Craigmillar Town Centre Temporary Greening forms part of a wider plan for the redevelopment of Craigmillar Town Centre. The masterplan, which was approved in December 2014, includes 330 homes, a retail centre, restaurant, community play area and high school – where the temporary greenspace will be situated until building commences. (ref 1, 3)

“Zagreb for Me” was an ambitious and comprehensive project launched in 2015 by the Zagreb Society of
Architects in cooperation with the Faculty of Architecture at the University of Zagreb and the City of Zagreb.
The goal of the project was to start a revitalization of public spaces through the realization of 17 urban
interventions in the whole city area at the same time. This distributed approach aimed to improve the general
“image of the city” and raise the quality of urban life in segments of housing, recreation, leisure and social
cohesion and revitalization of Zagreb's public spaces using public participation as a tool. This project aims to decentralize designed public spaces and draw attention to some forgotten city spots. At the same time, the project, created from a “bottom-up” initiative, establishes a new model of public participation as well as new forms of collaboration (Ref 1, 2, 3). The project "Zagreb for me" was created on the basis of Acupuncture of the city - an interdisciplinary approach and public participation, but it covers a wider urban space, ie it deals with public spaces throughout Zagreb. After the conducted urban-architectural tenders for the selected solutions, the realization is planned. Only one urban-architectural tender was conducted and the implementation of the project stopped there, but the project "Zagreb for me" was recognized as an example of good practice with the possibility of application in other cities. (Ref 5)

"Pending the creation of housing and new walks by 2020, the association Carton Plein and the EPA (Public Building Institution) of Saint-Etienne have created a temporary public space on the site known as "la Cartonnerie". A place for exchange and conviviality, the site hosts artistic installations, ephemeral installations and events. It is a laboratory conducive to imagining new ways of doing the city" (Ref. 1). The citizens also created shared gardens in this area called "Le Jardin Experimental"(Experimental garden) (Ref. 4).

The Leonardo Garden was a community garden in an empty building site of 8th district of Budapest, that implementation was initiated by KÉK, the Contemporary Architectural Centre. (Reference 3)
The recultivation of two neglected, empty plots of land created one of the earliest community gardens in Hungary. Plants for consumption, spices, herbs and ornamental plants were planted. The 95 plots in the Garden were cultivated by young people, families and pensioners, but the Garden also served educational purposes, as it frequently received school groups. The Garden has hosted a number of public community and cultural, gastronomic and musical events, which were well attended by both the neighbourhood and the general public. The community garden was closed in March 2018 because the company that owns the land wanted to start construction on it. (Reference 5)