12m x 3m Maryland (Premium) – BLACK SERIES 12m x 3m Granny Flat – Maryland (Premium) 12m x 3m Granny Flat – Plan E 12m x 3m Granny Flat – Maryland 12m x 3m Granny Flat – Plan E 12m x 3m Granny Flat – Plan E 12m x 3m Granny Flat – Plan G