Last edited 26 Jun 2018

Net benefits

The New Rules of Measurement (NRM) are published by the Royal Institute of Chartered Surveyors (RICS). They provide a standard set of measurement rules for estimating, cost planning, procurement and whole-life costing for construction projects.

NRM3: Order of cost estimating and cost planning for building maintenance works, the terms ‘Net Savings’ (NS) and ‘Net Benefits’ (NB) refer to:

'…the present value of savings/benefits in the operation ‘in use’ phase less the present value of the additional investment costs to achieve them. It provides a measure of cost effectiveness and of the benefits to be achieved from investment options. NS/NB greater than 0 (zero) indicates positive cost effectiveness.'

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