Impacts of climate and land use changes on flood risk management for the Schijn River, Belgium

•A sound understanding of climate change is required in support of current flood risk management.•The hydrological behaviour of the Schijn River, Belgium, was studied from urbanization and climate scenarios perspectives.•Peak flows for rural and urban runoff were significantly higher than existing rainfall-runoff model (PDM) flows because of faster and more peaked urban runoff response.•The impact of climate change on current and future conditions was assessed by estimating peak flows with respect to return periods from the flood frequency curve.•Climate change impacts were found to contribute the most in producing peak flows in coming years, while increased urbanization takes the second place for both hourly and daily values.•Results on urbanization effect and climate change impact assessment are useful to the water managers for spatial planning, emergency planning and insurance industry.