City St George's: Mouldy Bedrooms Double Hay Fever Risk for Kids

June 11, 2026

South London News Smart London Desk Edited By Jimmy Nsubuga

Little ones breathing in damp and mouldy air could be setting them up for a lifetime of allergies. New research from City St George’s, University of London, has found a worrying link between mouldy bedrooms and children developing hay fever.

The Shocking Findings

Researchers tracked over 2,500 children and discovered that those living in homes with damp or mould were significantly more likely to suffer from wheezing. This problem was even worse when mould was found in the child's actual bedroom.

Lasting Health Consequences

The study, which followed children from ages 3-5 up to 7-11, found that kids from damp homes were nearly 1.5 times more likely to develop hay fever. If mould was in their bedroom, this risk nearly doubled.

Dr Sierra Clark, lead researcher at City St George’s School of Health & Medical Sciences, said: "Our study shows that improving housing conditions, particularly by reducing mould in children’s bedrooms, could have important benefits not only for children’s immediate respiratory health, but also for their longer-term health as they grow up."

A Problem for the Poorest

The research also highlights that families struggling financially are hit hardest by damp and mould. This means existing health inequalities are being made worse.

Rosie McEachan, the Director of Born in Bradford, added: "This research highlights the serious impact that cold, damp and mouldy homes have on children’s health. This is a problem which particularly affects the poorest in our society."

Urgent Need for Action

With the cost-of-living crisis making heating homes a struggle, many families are forced to live in poor-quality rentals. The study recommends that mould in a child's sleeping area should be a top priority for housing improvements. This backs up the new Awaab's Law, which legally requires landlords to tackle damp and mould.

Author

South London News Smart London Desk Edited By Jimmy Nsubuga

From sustainable urban planning to AI-driven city services, the South London News Smart London Desk offers comprehensive coverage of how our environment is evolving. Our editorial staff provide analysis on urban innovation, green tech, and local infrastructure shifts, ensuring our readers understand the technologies shaping their future neighbourhoods.

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