Some types of infrastructure are deemed to have State significance due to the size, economic value or potential impacts that it may have.

Infrastructure that is State Significant is identified in the State and Regional Development State Environmental Planning Policy..

Types of State significant infrastructure

State significant infrastructure (SSI) includes major transport and services development that have a wider significance and impact than on just the local area.

The Government has identified certain types of development that are SSI, for example:

  • Rail infrastructure,
  • Road infrastructure,
  • Water storage and treatment plants,
  • Wharf and boating facilities,
  • Pipelines, and
  • Certain development in National Parks.

A development proposal for any of the identified development types is SSI if it:

  • is over a certain size,
  • is located in a sensitive environmental area, or
  • would exceed a specific capital investment value.

The full list of SSI development types can be viewed in Schedules 3 and 4 to the State and Regional Development State Environmental Planning Policy.

To find out more about SSI, view the Department's SSI Fact Sheet.

Other development assessment systems