Good quality housing is crucial for public health, yet its economic implications for long-term care have not been extensively studied. This research analyzes how housing improvements can affect future long-term care costs in England, utilizing data from the English Longitudinal Study of Ageing and the Health Survey for England. Projections indicate that without interventions, formal care costs may rise significantly by 2042. Conversely, if all housing issues are addressed, both formal and unpaid care costs could be substantially lower than in scenarios without intervention. Overall, effective housing improvement programs could reduce long-term care needs and costs over time, leading to financial savings that justify the initial investment.