Divergence in planning for affordable housing

Academic and political debates about the extent to which planning influences the volume, type, location, and affordability of new housing have not gained as much prominence in Portugal as in England, where planning obligations are aimed at providing new affordable housing and a mix of housing tenures. Yet, in England, the use of Section 106 in planning agreements to secure affordable housing as a proportion of new developments has received mixed reactions: at times considered a successful public value-capture tool while, at others, it is a neoliberal policy that is not generating the expected results.

The purpose of this research, based on literature reviews and semi-structured interviews with government advisors, local officials, and academics, is to investigate why and how planning for affordable housing has been used in England and not in Portugal. The data shows that divergence in the adoption of planning obligations for affordable housing is the result of different but interdependent causes: path dependency (a concept that suggests that past events influence present and future ones), ideology (values, beliefs, and a general political orientation regarding how society ought to be and how to improve it), and planning cultures (collective social practices with their specific roots, legal traditions, ethos, etc.).

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