Is wonen echt onbetaalbaar? En wat kunnen we eraan doen?

The piece “Is wonen echt onbetaalbaar? En wat kunnen we eraan doen?” is a news‑feature published by the Belgisch Financieel Forum and authored by Sien Winters, a researcher affiliated with the HIVA‑KU Leuven research group. It examines housing affordability in Flanders, presenting recent statistical findings and analysing policy instruments that could improve sustainable and affordable housing.

Recent surveys indicate that in 2023 roughly one in five households in Flanders spends more than 30 % of disposable income on housing costs – the conventional threshold for unaffordability. The risk is highest among private renters, with about one in two private‑rental households exceeding this threshold. Homeowners with mortgage loans show a modest decline in risk, while low‑income groups experience rising unaffordability, highlighting a pronounced distributional gap.

The article relies on the “woonquote” (housing‑cost‑to‑income ratio) and the residual‑income approach, both standard in Flemish housing research. The woonquote measures the share of net income devoted to rent or mortgage payments, ignoring ancillary costs such as utilities. The residual‑income indicator subtracts housing expenses from net income to assess whether a household can meet a basic living standard. The presented data stem from the fourth large‑scale household survey commissioned by the Flemish government in 2023.

Affordability pressures are not uniform across the region. Central cities such as Antwerp, Ghent and Leuven exhibit higher unaffordability ratios than peripheral towns, reflecting stronger price growth in urban cores where higher education institutions concentrate. Rural and peripheral areas often report ratios below the regional average.

The article outlines a broad set of policy tools used at federal, regional and municipal levels:

• Tax measures (deductions, surcharges, property taxes)
• Direct subsidies (social‑rental subsidies, rent premiums, low‑interest loans)
• Regulatory actions (minimum quotas for social housing in new developments, rent‑control adjustments)
• Communication tools (online calculators such as “Huurschatter” and “Premiezoeker”) It notes that fiscal advantages frequently capitalise into higher market prices, reducing their effectiveness for low‑income households. Rent subsidies reach only about 1 % of households and suffer from low take‑up rates and potential rent‑price inflation.

Social housing remains a cost‑effective mechanism when well targeted. In Flanders, social‑rental stock accounts for less than 6 % of total housing, far below many European counterparts. Approximately 250 000 private‑rental households could benefit from a social‑housing placement or a comparable subsidy to achieve minimum affordable standards. Ownership gaps are widening: home‑ownership in the lowest income quintile has fallen below 50 %, while it approaches 90 % in the highest quintile.

The article highlights Belgium’s robust redistribution system via taxes and social security, yet it remains insufficient to guarantee affordable housing for all. Fiscal instruments often favour higher‑income owners, and the “tenure neutrality” principle is discussed: unequal tax treatment between renting and owning can distort household choices and market outcomes.

While the focus is on affordability, the analysis touches on sustainability: subsidies for energy‑efficient retrofits and low‑interest “energy loans” are mentioned as ways to reduce long‑term housing costs and environmental impact. The authors suggest that integrating housing‑affordability policies with climate‑friendly measures could yield dual benefits for European audiences concerned with sustainable living.

The authors conclude that despite a relatively stable overall affordability risk over the past decade, structural inequalities persist. Continued development of targeted fiscal tools, expansion of social‑housing supply, and careful monitoring of subsidy spill‑overs are essential to enhance both affordability and sustainability in the Flemish housing market.