- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 02 Nov 2020
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.
According to NRM1: Order of cost estimating and cost planning for capital building work, the term ‘site area’ (SA) means:
‘…the total area of the site within the site title boundaries (or the total area within the site title boundaries defined by the employer as the site for the building), measured on a horizontal plane.’
However, NRM1 then goes on to give a second, slightly different definition:
‘Where the external works is to be measured separately, the site area (SA) is to be measured. The SA is the total area of the site within the site title boundaries (or the total area within the site title boundaries defined by the employer as the site for the building or buildings), excluding the footprint of the new building(s), measured on a horizontal plane.'
 Related articles on Designing Buildings Wiki
Featured articles and news
The hidden price of infrastructure.
BREEAM incorporates wellbeing into its Building Back Better programme.
Administration signals policy changes on some building-related issues.
From inns and coaching houses to boutiques.
Survey reveals green skills gap.
America's economic collapse produced scores of PWA Moderne projects.
The benefits of glowing aggregates and cement.
Urgent need for open communication to address mental health issues.
Guidance offered on COVID-19 green recovery, building safety and more.
Providing strength and support above the joists.
Enforcer will test and investigate product safety.