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.'
In natural heritage terms, net benefit (enhancement / new benefit) refers to: ‘… the genuine (as opposed to asserted) improvement of the natural heritage interest of a site or area, for example, because adverse effects are limited in scope and scale, and the project includes measures to improve the physical state or management of landscapes or habitats, or new landscape features or habitats, which are better than they are at present. There is, therefore, a net or new benefit to the natural heritage.’ Ref A handbook on environmental impact assessment, 4th edition, published by Scottish Natural Heritage in 2013.
[edit] Related articles on Designing Buildings Wiki
- Capital costs for construction projects.
- Cost plan.
- Cost-benefit analysis in construction.
- Development appraisal.
- Discounting.
- Internal rate of return for property development.
- Investment.
- Life cycle assessment.
- Net present value.
- NRM1.
- NRM2.
- NRM3
- Profitability.
- RICS.
- Value for money.
- Whole life costs.
- Yield.
Featured articles and news
The 5 elements of seiri, seiton, seiso, seiketsu and shitsuke.
Shading for housing, a design guide
A look back at embedding a new culture of shading.
The Architectural Technology Awards
The AT Awards 2025 are open for entries!
ECA Blueprint for Electrification
The 'mosaic of interconnected challenges' and how to deliver the UK’s Transition to Clean Power.
Grenfell Tower Principal Contractor Award notice
Tower repair and maintenance contractor announced as demolition contractor.
Passivhaus social homes benefit from heat pump service
Sixteen new homes designed and built to achieve Passivhaus constructed in Dumfries & Galloway.
CABE Publishes Results of 2025 Building Control Survey
Concern over lack of understanding of how roles have changed since the introduction of the BSA 2022.
British Architectural Sculpture 1851-1951
A rich heritage of decorative and figurative sculpture. Book review.
A programme to tackle the lack of diversity.
Independent Building Control review panel
Five members of the newly established, Grenfell Tower Inquiry recommended, panel appointed.
Welsh Recharging Electrical Skills Charter progresses
ECA progressing on the ‘asks’ of the Recharging Electrical Skills Charter at the Senedd in Wales.
A brief history from 1890s to 2020s.
CIOB and CORBON combine forces
To elevate professional standards in Nigeria’s construction industry.
Amendment to the GB Energy Bill welcomed by ECA
Move prevents nationally-owned energy company from investing in solar panels produced by modern slavery.
Gregor Harvie argues that AI is state-sanctioned theft of IP.
Experimental AI housing target help for councils
Experimental AI could help councils meet housing targets by digitising records.
BSRIA Occupant Wellbeing survey BOW
Occupant satisfaction and wellbeing tool inc. physical environment, indoor facilities, functionality and accessibility.