The data on use of built-up and non-built-up areas derive from a large number of sources which are described in a differentiated manner in the respective volumes. The basis for the categorisation and use assignment was provided by the land use maps in the 1985 Environmental Atlas for the former West Berlin, “Actual Use of Built-up Areas” (06.01.), and “Inventory of Green and Open Spaces” (06.02), as well as the 1990, 2000, 2001, 205, 2010 and 2015 volumes published for all of Berlin (06.01 / 06.02).
In the process of updating to the version of December 31, 2020, changes in land use between 2016 and 2020 were recorded and updates to the geometry of the 1 : 5,000 Block Map (ISU5) were made. Moreover, the data base for actual-use mapping was subjected to plausibility checks on the basis of various geo-data available in the State of Berlin and updated if necessary. The Environmental Atlas Maps on Urban Structure (06.07) and Urban Structure – Area Types Differentiated (06.08) were compiled simultaneously (SenStadtWohn 2021c).
In all, the following databases were used to update and verify the actual-use mapping:- Block (segment) area map of the Urban and Environmental Information System (ISU5), as of December, 2015
- Roadway areas of the Urban and Environmental Information System (ISU5), as of December, 2015
- Data from the Senate Department for Urban Development and Housing as well as the Senate Department for the Environment, Transport and Climate Protection:
- Official Real Estate Cadastre Information System – ALKIS, as of March 10, 2021,
- Official Topographic Cartographic Information System – ATKIS, as of March 16, 2021,
- Land asset (LGV) Berlin, as of January 5, 2021,
- Soil Associations of the Urban and Environmental Information System (ISU5), as of August 13, 2018,
- Digital ortho-photos, aerial photography flights from 2010 through 2020,
- Cemetery inventory, as of July 12, 2017,
- Gardening schools, as of June 30, 2020,
- Building age in residential development, as of December 31, 2015,
- Green space and playground inventory, as of March 1, 2020,
- Youth recreational centres, as of January 18, 2021,
- Youth art schools, as of June 30, 2020,
- Map of Berlin 1 : 5,000 (K5), as of 2010 to 2021,
- Daycare centres, as of January 18, 2021,
- Allotment garden inventory, as of March 1, 2020,
- Peatlands and soil types, as of May 2015,
- Music schools, as of June 30, 2020,
- Schools, public, as of January 5, 2021
- 2014 road survey, as of December 31, 2015
- Administrative units of Berlin’s forests, as of February 7, 2020,
- Adult education centres, as of June 30, 2020
- Housing Construction Space Information System (WoFIS), as of December 31, 2020.
- Data from external sources:
- Building completions of the years 2012 – 2019, Statistical Office for Berlin-Brandenburg, as of December 31, 2019,
- Statistical blocks, Statistical Office for Berlin-Brandenburg, as of May 1, 2021,
- Digital field block register, agricultural reference plots, Ministry of Rural Development, Environment and Agriculture Brandenburg, as of September 18, 2020,
- List of hospitals, university hospitals, specialised hospitals and private maternity hospitals in Berlin, LAGeSo (Landesamt für Gesundheit und Soziales), as of January 29, 2021.