A NSW Government website

Disaster resilience cost-benefit analysis guide

The Disaster Cost-Benefit Framework (TPG23-17) provides guidance on how to undertake disaster resilience cost-benefit analysis (CBA). 

The Framework sits under and follows the same principles and requirements of the NSW Government Guide to CBA (TPG23-08).

The Framework aims to improve the robustness and consistency of disaster resilience CBAs to support decision making and well targeted investment. It includes:

  • recommendations on how to consider, analyse, and present information about the risk and uncertainty associated with disasters where impacts can be dominated by low frequency high consequence events
  • a rapid assessment framework to facilitate timely, transparent, and logical prioritisation where there is insufficient time to complete a full CBA
  • a requirement for ex-post evaluation where a business case and CBA would be required up front but where this is impracticable given the need for a rapid response
  • a Flood CBA Tool to support the quantification of costs and benefits for flood resilience initiatives. 

Further resources 

Flood Cost-Benefit Analysis Tool

The Flood CBA Tool can be used to calculate damages associated with flooding, complete a CBA and a Monte Carlo analysis.  This Technical Note provides details of the tool’s functions, parameters and inputs. It also provides a worked example and user manual. 


For further information please contact Treasury’s Centre for Economic Evidence [email protected]