To exempt detached garages and accessory buildings facing dwelling units from the requirements of Sentence 9.10.14.5.(1) and Sentence 9.10.14.5.(4), which would otherwise impose certain minimum requirements relating to fire-resistance rating, type of construction and type of cladding for exposing building faces, if certain conditions are met, on the basis that detached garages and accessory buildings are considered an integral part of a dwelling unit, and such structures are generally very small and the incidence of fires in such structures in relation to house fires is low. There is insufficient risk, therefore, to require the spatial separation of a house from its garage or carport.