The RAISE toolkitwas developed following a user-centred research approach including iterative design, prototyping and evaluation. Tooldevelopment wasinformed by user inputsobtained througha series of co-design workshopswithtwo end-user groups:land valuers and urban planners.The paper outlines the underlying technical architecture of the tool,which has the ability to perform rapid calculations and visualise the results,for the end users,through an online mappinginterface.The toolkitincorporates an ensembleof hedonic pricing models tocalculate and visualisevalue uplift and soenable the user to explore what if?scenarios.