Caerphilly Borough Council Description of case study. Client Private Homeowners, Shaw Housing Trust & Caerphilly Borough Council Location Caerphilly Start Date Value £5,100,000 Length Work Type External Wall Insulation, Internal Wall Insulation, Solar PV, Replacement Boilers & Loft Insulation Number of Properties 750 Type of Properties Wimpey No-Fines, Traditional Stone Houses Insulation Type 90mm & 100mm EPS Lambdatherm U Value Finish Applied Pebble dash & Header Course Brick Slip