There currently doesn’t exist a standardised Australian Building Information Modeling (BIM) library. The UK has recently started such an initiative  (the National BIM Library) and there are various other libraries on the web where BIM objects can be downloaded (some paid some free):

• National bim library
• Seek Autodesk
• BIM components
• BIM Building Products
• Arcat BIM
• Archic adware house
• Product spec
• Archvision
• Formfonts
• Revitbay
• Yellowbryk
• Pinnaclecad: revit families
• Andekan
• Revit components
• Smartbim wpengine
• Bim store (UK)
• Parametrx
• HILTI (Uk)
• bradleycorp
• Flexymodels
• Revitcity
• Fairview