The NATSPEC Class 3 and 9c Reference Specification has been developed to provide a quality control tool for the construction of residential projects, including but not limited to, boarding houses, guest houses and residential care buildings. The specification needs to be included in the construction documentation, or sale documentation, to make it a contractually binding requirement. When you purchase a fridge or motor car you choose the quality of your product. Building practitioners use the specification to instil good building practices. For building projects the discerning trust NATSPEC for quality control.

It is the responsibility of the developer to employ suitably qualified designers to document the project specific requirements to support this reference specification and confirm that the requirements of this
reference specification are suitable and appropriate to the project.

The NATSPEC Class 2 Reference Specification, also available from NATSPEC, should be used for Class 2 apartment developments.

The Class 3 and 9c Reference Specification is sold on a project-by-project basis and is not part of a NATSPEC subscription. Only NATSPEC BASIC and PROFESSIONAL subscribers receive special Class 2, Class 3 and 9c Reference Schedules that have been refined for proprietary specifying. 

The NATSPEC Class 3 and 9c Building Specification is Part A of a two-part specification, where Part B includes amendments to Part A, schedules and other project specific requirements prepared by the project designers. Part A does not change from one project to another but remains static. The greatest benefit is that once tradespeople know what is required, they do it correctly on all Class 3 and 9c projects.

This document is a comprehensive reference specification to cover the majority of design/construction scenarios and is therefore quite large (Download the list of worksections included). Different tradespeople need only concern themselves with the worksections that apply to their trade.

Note that the individual component Workgroup parts are not stand-alone specifications; they are to be read in conjunction with the relevant worksections in the other parts. The consolidated file provided is the full Reference Part A, the individual component Workgroup files have been supplied for convenience only.

Together with project specific information, schedules and drawings prepared by the project designers, the NATSPEC Class 3 and 9c Building Specification forms part of the project documentation.

The Class 3 and 9c Reference Specification is published annually and aligned with the current National Construction Code (NCC) Volume 1, however any local requirements must take precedence.

For more information, check the NATSPEC Class 3 and 9c Reference Specification frequently asked questions.

NATSPEC Class 3 and 9c Reference Specification and NSW Fair Trading requirements
Under the NSW Design and Building Practitioners Act 2020 and supporting Regulation, NSW Fair Trading requires a Standard Title Block to be completed and attached to the front of the schedule, specification or report for all declared regulated designs. 

NSW Fair Trading have advised that the Standard Title Block it is not required to be attached to the NATSPEC Class 3 and 9c Reference Specification document. However, the Standard Title Block must be attached to any project specific schedules prepared by consultants as Part B of a two-part specification where Part A is the NATSPEC Class 3 and 9c Reference Specification. 

For more information, check the frequently asked questions section on the NSW Fair Trading website or call 13 32 20.