The paper presents and evaluates an analytical model that was developed for prediction of heat extraction using horizontal ground heat panels. Ground Source Heat Pump (GSHP) systems coupled with stormwater infiltration trenches were installed in newly built residential houses alongside with a control house that was fitted with a conventional gas boiler in the North of England. Bespoke parallel horizontal ground panels were installed at 2.35m below ground surface. Up to 350 metres of High Density Polyethylene (HDPE) pipe with an external diameter of 40 mm were used to build up two parallel ground heat panels at the front and back of the house. Measurements of the key parameters including ground temperature, rainfall, coolant flow rate, coolant temperature were taken for one full year from October 2013 to September 2014. The model shows good prediction of the coolant temperature along the ground panel. However, it was noted that the model overestimates the coolant temperature at the centre point of the ground heat extraction panel.