This unit of competency specifies the outcomes required to review proposed building design documentation during the design process for buildings and structures included in Building Code of Australia (BCA) definitions for class 1 and 10 up to three storeys and not more than 2000 square metres in floor area. It applies to providing advice on the preparation of planning and building approval applications and on the compliance of proposed design documentation with the requirements of building and planning legislation, regulations, codes and standards that apply to the nature and location of each project. The unit supports the work of building surveyors providing advisory code-consulting services to building and construction professionals involved in developing building design documentation up to the building approval application stage. The building surveyor may provide advice concurrently on a range of building design projects in different locations. Building surveyors must operate within the regulatory constraints that govern the relationship between their advisory and statutory roles and ensure that no conflict of interest arises.Licensing, legislative, regulatory or certification requirements apply to this unit in some States. Relevant state and territory regulatory authorities should be consulted to confirm those requirements.