deciding, for the purposes of section 35 of the 1984 Act (penalty for contravening building regulations), whether there is a contravention of a provision contained in building regulations.
penderfynu, at ddibenion adran 35 o Ddeddf 1984 (cosb am dorri rheoliadau adeiladu), a dorrwyd darpariaeth a geir yn y rheoliadau adeiladu.