JRG Energy supported a major London office development in evaluating Ground Source Heat Pump (GSHP) options for a low-carbon heating and cooling strategy. We carried out a geothermal resource assessment of the subsurface geology and hydrogeology at the central London site, generated GSHP system options tailored to the client’s requirements, and delivered recommendations that confirmed the site’s suitability for multiple viable configurations, clearing the path for the next design stage.