The Lisbon Urban Allotment Garden Programme aims to convert vacant lots and degraded parks in Lisbon, Portugal into so-called urban allotment parks that contain small allotments maintained by individual gardeners, families, community groups and school classes. Access to plots is prioritised for unemployed, elderly and low-income residents, and parks are freely open to visitors who wish to relax in nature. The municipality of Lisbon launched the programme in 2011 to implement the goals of its 2008 Green Plan and its Biodiversity Action Plan. By 2020, there were 20 urban allotment parks with 750 allotments across the city, providing a variety of environmental, social and economic benefits.