GalleryDr Jerry Harrall’s independent evidence based research has produced compelling data supporting the exceptional performance of high thermal mass buildings providing a blue-print for a new generation of fossil fuel free buildings. Tork Lane CottageNorth East View Tork Lane CottageNorth West View Tork Lane CottageSouth View GrenestreteSouth West View GrenestreteStreet View Field House Indy Crescent Buddy Greening the BoxHigh Wycombe Indy house Sunpod Honingham Jag Hol Frankly Bee