Code Assessment relates to the application for assessable development, and requires assessment of a proposal against all relevant development codes with the local planning scheme which the subject site is located within the jurisdiction of. This level of assessment is required to ensure compliance is achieved in terms of the necessary town planning requirements. In accordance with Section 313 of the Sustainable Planning Act the assessment manager, which should be your local council, must assess a Code Assessable application against the following matters, where relevant as stipulated in SPA 2009;
(a) the State planning regulatory provisions;
(b) the regional plan for a designated region, to the extent it is not identified in the planning scheme as being
appropriately reflected in the planning scheme;
(c) any applicable codes, other than concurrence agency codes the assessment manager does not apply, that are identified as a code for IDAS under this or another Act;
(d) State planning policies, to the extent the policies are not identified in—
(i) any relevant regional plan as being appropriately reflected in the regional plan; or
(ii) the planning scheme as being appropriately reflected in the planning scheme;
(e) any applicable codes in the following instruments—
(i) a structure plan;
(ii) a master plan;
(iii) a temporary local planning instrument;
(iv) a preliminary approval to which section 242 applies;
(v) a planning scheme;
(f) if the assessment manager is an infrastructure provider—an adopted infrastructure charges resolution or the priority infrastructure plan.

An example of development that could be Code Assessment, subject to review of a proposal against the relevant town planning requirements includes;
Brisbane City Council – Low Density Residential Zone: House on a Small Lot
Moreton Bay Regional Council (Redcliffe Planning Scheme) – Low Density Residential Area: Home based business, Relative’s accommodation (granny flat)