Changing building class to a class 2-9

A building application to Council for a building permit is required for changing a building class for/to classes 2,3,4,5,6,7,8,9 (post 1998 building) under the Building Act 1975.  Change the class of a building originally constructed post 1998 to a commercial / industrial / multiple dwelling complex.

development application may be required if operational works approval is required also.

A plumbing and drainage application may be required where plumbing/drainage works are part of the project then a permit for this work may be required.

Siting Requirements

The Queensland Development Code regulates siting requirements for single detached dwellings and Class 10 type structures. 

Wind Category Rating

The building work is required to be designed to comply with the wind rating of the property (either Non-Cyclonic or Cyclonic). The building plans/documents must confirm the design standard. To find out the wind rating of your property contact either your nominated RPEQ Engineer, Building Designer or the authority nominated to assess the application.

Documentation required to lodge a building application for this work

  • Building Form - Form 1 Application details 
  • Building Form - Form 2
  • PLSL receipt details if work value >$80,800
  • Fees as per the current Fees Schedule.
Site Plan (min scale 1:100 – 3 sets)
  • Full outline of property and dimensions
  • Location of building in relation to boundaries. If existing buildings on the site to remain, clearly identify the new building structure
  • North point
  • Road frontages to be identified
  • Easements/covenant areas on the site
  • Distance of all buildings from the boundaries
  • Location of sewer / method of roof stormwater discharge on the site.
  • Details of any site works proposed as part of the development.
  • Contours of the site after cut/fill
  • Location of rainwater tank (for residential units).
Floor Plans (min scale 1:100 – 3 sets)
  • Floor plan – full dimensions
  • Elevation and section plans – full dimensions
  • Design details (either engineer specifications and/or bracing, timber schedule, tiedown details). Design is to also take into consideration the soil classification of the site.
  • Building floor level above adjacent finished ground level
  • Identify the use of the rooms
  • Location of fire safety equipment installations, signage.
  • Wind category design details/certification.
  • Energy efficiency design calculations
  • Window / door sizes.
Other Documentation
  • Engineer drawings / specifications / design certification (must use  Form 15)
  • Certification from Queensland Fire and Rescue Services for compliance with fire safety regulations
  • Specifications of fitout of the building
  • Electrical / Hydraulic drawings.