Centripetal Cities: A critique of supply-side urban development

Centripetal Cities: A Critique of Supply-Side Urban Development is a comprehensive report published by Richard Goulding, Adam Leaver, and Jonathan Silver from the University of Sheffield. This document examines the implications of property-led urban development, particularly focusing on Manchester as a case study, and discusses the effects of this model on social equity and housing sustainability.

The report begins by contrasting centripetal and centrifugal cities. Centripetal cities, like Manchester, attract skills and capital towards their centers, often at the expense of peripheral areas, which face economic decline. The authors argue that this model exacerbates regional inequalities, with the wealth generated in urban centers not trickling down to surrounding areas.

Supporters of supply-side urban development argue that agglomeration economies boost productivity and attract investment. However, critics highlight that Manchester's transformation has not universally benefited its residents. For instance, while productivity in Greater Manchester has increased, wages have not kept pace with living costs, leading to a decline in disposable income after housing costs.

The report discusses the significant housing crisis in Manchester, where high rents and property prices pose barriers to affordable housing. With an estimated 25,640 housing units built between 2014 and 2023, the city still faces shortages for lower-income groups. Many households are trapped in temporary accommodations, and the city has the highest rates of homelessness for any British city outside London.

The authors provide a detailed analysis of the financial dynamics at play. For instance, only 471 affordable housing units were approved between 2012 and 2020, constituting merely 1% of total residential development. Public funds have been used to support private developments, yet the returns often flow out of the city, benefiting global investors rather than local communities.

Data shows that despite a 2% growth in Greater Manchester's Gross Value Added (GVA), real wages have stagnated, with many areas witnessing declines in GVA per hour worked. Housing costs consume a significant portion of income, leaving residents with limited financial flexibility. The report emphasizes that the benefits of urban development must be scrutinized, as they often accrue to property investors rather than the local population.

The report further explores the phenomenon of gentrification in Manchester, highlighting the loss of social housing and the displacement of lower-income residents. Over 25,768 social homes have been lost since the introduction of the Right to Buy policy in the 1980s. The authors assert that the current model of development has resulted in rising rents, which disproportionately affects vulnerable populations.

In conclusion, the report calls for a re-assessment of the 'city-first' model of urban development. It advocates for an alternative approach that prioritizes local communities and sustainable practices, rather than focusing solely on attracting investment. The authors suggest that moving towards a more inclusive model could help address the pressing social and economic issues facing urban areas like Manchester, ensuring that growth benefits all residents.