Mapping soft densification: a geospatial approach for identifying residential infill potentials

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Denise Ehrhardt - , Technische Universität München (Autor:in)
  • Martin Behnisch - , Professur für Raumbezogene Information und Modellierung (gB/IÖR), Leibniz-Institut für ökologische Raumentwicklung e. V. (Autor:in)
  • Mathias Jehling - , Leibniz-Institut für ökologische Raumentwicklung e. V. (Autor:in)
  • Mark Michaeli - , Technische Universität München (Autor:in)

Abstract

Infill development policies have been widely adopted as strategies to reduce urban sprawl and to promote sustainable urban transformation. However, little empirical data are available to analyse infill processes and to facilitate building activity on infill potentials. This is especially true for small-scale residential infill, which often takes place on vacant or underused lots as soft densification. To address this issue, a geospatial method is presented that enables automatic detection of vacant lots for large areas. Cadastral data are used to analyse spatio-temporal development for the period 2011–21 in a German study area, containing large cites as well as rural municipalities. The results show that every fourth vacant lot was mobilised since 2011. However, additional vacant lots emerged in rural areas as new residential development areas are not fully built-up, resulting in a net increase of vacant lots. Although the quantity of vacant lot areas in 2021 suggests a high potential for residential infill, the main development on these infill sites is expected to promote additional single-family housing rather than more dense structures.

Details

OriginalspracheEnglisch
Seiten (von - bis)193-211
Seitenumfang19
FachzeitschriftBuildings and Cities
Jahrgang4
Ausgabenummer1
PublikationsstatusVeröffentlicht - 2023
Peer-Review-StatusJa

Schlagworte

Schlagwörter

  • cadastral data, cities, densification, Germany, land use, planning, residential, urban expansion, urban infill, vacant lot