Specifications are required to describe the standard to which a building is to be constructed in terms of structural, operational and aesthetic aspects. The specification must include:

• a reference to the approved DA plans
• a description of construction materials for the walls (internal and external), floors, windows, roof including its lining
• the relevant standards for constructing the following building components:
  • footings/structural elements
  • timber framing
  • drainage-water/sewage
  • oil or solid fuel heating appliances
  • termite control
  • fire safety measures, eg. fire resistance levels and essential fire safety services
  • wet areas
  • lighting/ventilation
  • sound transmission class rating
  • stair construction and balustrades
• evidence of any accredited component, process or design to be relied upon, where relevant
• site preparation; and
• finishes.