Hydrological assessment of urban Nature-Based Solutions for urban planning using Ecosystem Service toolkit applications

•ANaRM is a simple ecosystem service model for NBS effects on flood hydrology.•Validated model provides realistic flood peak estimates across an urban catchment.•Ponds are most effective for reducing peak flow in channels and fluvial flooding.•LUC and SuDS reduce localized runoff, peak flow and pluvial flooding.•Sensitivity analysis to key NBS/runoff parameters, code and user guide provided.