Overview of the Study
The paper “Housing affordability and the city” is an academic contribution from Marco Peverini (Politecnico di Milano, Department of Architecture and Urban Studies) and Rebecca Cavicchia (Norwegian University of Life Sciences, BYREG‑Institute for Regional Planning). Published in January 2022, the work examines the multidimensional nature of housing affordability (HA) across Europe, focusing on urban and spatial dimensions, policy implications and emerging research gaps.
Urban Focus of Housing Affordability
The authors argue that HA has become a predominantly urban issue, with European households increasingly overburdened by housing costs. The abstract notes that 30 % of European households face cost overburden, and Blackstone‑managed rents are reported to be 38 % above neighbouring levels. The study highlights trends such as rising urban housing prices, financialisation of housing, and the suburbanisation of poverty, which together shape spatial inequalities.
Key Themes Identified in the Literature Review
Through a systematic review of 82 papers (53 deemed relevant), the authors categorise HA research into ten thematic clusters: housing supply, social mix, employment‑housing mismatches, urban renewal, financialisation, land rent, transportation costs, ecological retrofitting, short‑term rentals, and governance. Each theme underscores a spatial component—whether the location of new supply, the filtering effect of prices on social groups, or the transport burden linked to peripheral housing.
Seminar Insights on Diverse Approaches
The paper summarises three seminar contributions:
- Marietta Haffner’s comparative European analysis stresses the limits of income‑to‑cost ratios and draws attention to spatial filtering, suburban poverty and commuting costs.
- Christine Whitehead’s London‑focused case illustrates how rising house prices, transport policies and short‑term rentals combine to erode affordability for median incomes.
- Melissa García Lamarca’s examination of Blackstone‑owned properties in Barcelona shows rent levels 38 % above local averages, linking corporate ownership to heightened spatial inequality.
Spatial Dimensions and Poverty Suburbanisation
The authors document how high‑priced city cores push low‑income households to peripheral areas, creating “poverty suburbs.” In London, for example, commuters spend nearly 10 % of income on travel, while cheaper peripheral housing often incurs higher transport costs, reinforcing a spatial mismatch between jobs and residences.
Policy and Research Gaps Highlighted
Table 1 outlines required actions:
- Defining urban boundaries for HA measurement (municipal, metropolitan, functional).
- Integrating transport costs into affordability indices.
- Developing governance models that address HA at multiple scales.
- Including housing quality, size and location in policy targets. The authors call for new analytical tools that capture both quantitative and qualitative aspects of HA, especially in the context of sustainable urban development.
Methodological Notes
The study relies on EU‑SILC data, seminar discussions, and a broad literature corpus. It stresses the need for more granular, neighbourhood‑level data to capture intra‑urban disparities and to evaluate the impact of policies such as green‑belt protections or short‑term rental regulations.
Relevance for Sustainable Housing
By linking affordability to spatial planning, transport, and environmental retrofitting, the paper situates HA within the broader sustainability agenda. It underscores that unaffordable housing can exacerbate energy poverty, increase commuting emissions and hinder the delivery of resilient, inclusive urban environments across Europe.