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Offshore windfarms are a renewable energy source consist of optimally placed wind turbines to convert wind into electricity. The wind turbine foundations, typically monopiles, need to be designed to withstand natural forces and vibrations, requiring accurate soil characterization. Windfarm soil characterization is attempted through the Soil Behaviour Type using existing Oil & Gas Reservoir modelling methods. Both Oil & Gas and windfarm developments use seismic data and wells, but oil & gas data focuses on deep reservoirs and fluid mobility, while windfarm data focuses on soil strength and small-scale heterogeneities. The Oil & Gas developed reservoir modelling and charaterisation methods are used to construct a Soil SBT Facies model from the data acquired over a windfarm lease site. The approach successfully applies oil & gas modelling techniques to windfarm soil characterisation, with potential improvements in borehole site selection and monopile foundation design.