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RICS NRM: New Rules of Measurement

RICS NRM: New Rules of Measurement

NRM provides a standard set of measurement rules and essential guidance for the cost management of construction projects and maintenance works.

New rules of measurement (NRM) consists of three separate volumes:

  • NRM 1: Order of cost estimating and cost planning for capital building works
  • NRM 2: Detailed measurement for building works
  • NRM 3: Order of cost estimating and cost planning for building maintenance works

The current editions of NRM will remain available until 1 December 2021, when the new editions will come into effect.

> See the current NRM 1, 2nd edition

> See the current NRM 2, 1st edition

> See the current NRM 3, 1st edition

NRM 2021 publications

For the first time, all three volumes of the NRM suite are being published at the same time for this new edition.

The primary development in recent years has been the publication of International Cost Management Standards (ICMS) (formerly known as International Construction Measurement Standards). Together with the recent publication of the Cost prediction professional statement, there now exists a hierarchy of cost management standards and tools from the high-level and global ICMS, through the more detailed principles of all aspects of cost prediction in the professional statement, to the detailed rules and guidance in the NRM suite.

Other recent developments that have resulted in the need for a revised edition include the publication of a new RIBA Plan of Work (2020), which provides a framework for the analysis of construction costs.

A mapping tool between ICMS and NRM will also be provided here once ICMS 3 launches in late November 2021. While NRM is based on UK practice, it provides a framework for a common set of rules and guidance with global application.

The new editions of NRM will become effective on 1 December 2021.

A number of supporting documents are being provided alongside the new NRM guidance notes, which are designed to assist users with their understanding and use of the new NRM suite. These downloads will be available from, or shortly after, launch on 29 October 2021 and are listed here:

  • NRM 1
  • NRM 2
  • NRM 3

NRM 1

NRM 1 has been revised to interface with new developments, so that clients can be advised of and have confidence in the quality and consistency of the cost information being provided to them.

Users are free to make use of these templates and customise them for their own requirements, but should ensure that they carefully check the logic sequence and any embedded formulas are correct and reflect what needs to be calculated. RICS accepts no responsibility for the misuse of these template documents.

NRM 2

For NRM 2, we have taken user feedback into consideration for this latest edition. We are publishing this revised edition of NRM 2 shortly before the 100th anniversary of the publication of the first edition of SMM in 1922 – a milestone in long-standing guidance for surveyors.

There are also supporting documents available as downloadable Excel files to assist users with the preparation of estimates and cost plans that are in accordance with NRM 2.

Users are free to make use of these templates and customise them for their own requirements, but should ensure that they carefully check the logic sequence and any embedded formulas are correct and reflect what needs to be calculated. RICS accepts no responsibility for the misuse of these template documents.

NRM 3

With NRM 3 we have linked the cost analysis of the capital cost of a construction project with consideration of whole-life-cycle costing, and provided the tools to enable a seamless transfer of cost information from the construction team to the asset management team. In this respect, the use of BIM increasingly plays a significant part in the analysis of cost information, and revisions in this edition acknowledge the move from PAS 1192 to ISO 19650.

As with NRM 1 and NRM 2, there are supporting documents available as downloadable Excel files to assist users with the preparation of estimates and cost plans that are in accordance with NRM 3.

Users are free to make use of these templates and customise them for their own requirements, but should ensure that they carefully check the logic sequence and any embedded formulas are correct and reflect what needs to be calculated. RICS accepts no responsibility for the misuse of these