This dataset includes three spreadsheets for i) providing the 1 in 5 year rainfall inputs to the SWMM model, and associated outputs ii) discounted CAPEX, OPEX and TOTEX cost calculations for each adaptation pathway, iii) a Multiple benefit comparison of each pathway based on a B£ST analysis (after CIRIA). The title of the associated publication is "Integrating blue-green and grey infrastructure through an adaptation pathways approach to surface water flooding", authors are Leon Kapetas and Richard Fenner, and the paper is published in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Science.