6m x 6m garage with a 45 degree pitch clay/concrete plain tile gable roof and brick walls  
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6.6m x 6.6m Externally36m² Ground Floor AreaFirst Floor Storage Loft 3.5m x 6m = 21m²
12" Cavity wall constructionSingle side door and window7' x 7' Up and Over Garage Door and front window
Room in the Roof Truss RaftersRidge Height 6m