For those that need to consider preliminary aggregated construction impacts (A5) following the RICS guidance, this proxy EPD can be used:

EPD created for preliminary input of construction impacts under modules A5, following the RICS guidance when limited info is available. This aggregated impact based on expenditure (1.4 tCO2/£100k) includes various items like temporary energy consumption, plant use, waste and they all need to be split into individual templates as the design progress and more detailed information becomes available.