{"epc":{"lmkKey":"215539400602009012713000255712538","currentEnergyRating":"D","potentialEnergyRating":"C","currentEnergyEfficiency":57,"potentialEnergyEfficiency":73,"totalFloorArea":167.4,"lodgementDate":"2009-01-27","address":"20a, Spon Lane, Grendon","postcode":"CV9 2PD","propertyType":"House","builtForm":"Detached","wallsDescription":"Cavity wall, as built, insulated (assumed)","roofDescription":"Pitched, 50 mm loft insulation","mainHeatingDescription":"Boiler and radiators, mains gas","windowsDescription":"Fully double glazed","heatingCostCurrent":637,"heatingCostPotential":539,"hotWaterCostCurrent":321,"hotWaterCostPotential":116,"lightingCostCurrent":137,"lightingCostPotential":69,"energyConsumptionCurrent":289,"co2EmissionsCurrent":7.2}}