RICS code of measuring practice
Contents |
[edit] Introduction
The Code of Measuring Practice is a UK guidance note published by the Royal Institution of Chartered Surveyors (RICS).
The RICS suggest that, ‘The purpose of the Code is to provide succinct, precise definitions to permit the accurate measurement of buildings and land, the calculation of the sizes (areas and volumes) and the description or specification of land and buildings on a common and consistent basis.’
It was first published in 1979 and is now in its sixth edition, published in 2007.
[edit] Purpose
It is important that parties agree in advance the basis on which a building or land is to be measured. The Code of Measuring Practice provides guidelines for measuring buildings and land to avoid any disputes arising.
Accurate measuring is required for a variety of purposes:
- Estate agency and valuation.
- Conveyancing.
- Management.
- Planning.
- Sale.
- Acquisition.
- Rating and council tax.
For those within the property profession, it is a criminal offence to give false or misleading information about certain aspects of land or buildings that are for sale.
[edit] Core definitions
The main definitions used within the code are:
- Gross External Area (GEA). The area of building measured externally at each floor level.
- Gross Internal Area (GIA). The area of a building measured to the internal face of the perimeter walls at each floor level.
- Net Internal Area (NIA). The useable area within a building measured to the internal face of the perimeter walls at each floor level.
The publication also incorporates the recent judicial guidance in the case of markup.cgi?doc=/ew/cases/EWHC/Ch/2006/60.html Kilmartin SCI (Hulton House) Ltd v Safeway Stores plc [2006], for the meaning of useable area: ’an area is useable if it can be used for any sensible purpose in connection with the purposes for which the premises are to be used’.
[edit] Key points
- The code is a guide, rather than a set of hard and fast rules that must be followed.
- The code is for measurement purposes and does not deal with valuation.
- The code is distinct from the Standard Method of Measurement of Building Works (SMM now replaced by the New Rules of Measurement NRM2).
- It should be used alongside other guidance notes, for example the measurement of specialist property should also refer to the RICS Valuation Standard (The Red Book).
- The code is for use in the UK only.
[edit] 2015 IPMS update
In 2015, the sixth edition of the Code was updated by publication of RICS Property Measurement to incorporate the International Property Measurement Standard (IPMS), a global standard developed to make property measurement internationally consistent.
RICS Property Measurement has three elements:
- Professional Statement: Office Measurement (applies to office measurements only)
- IPMS: Office Buildings (applies to office measurements only)
- Code of Measuring Practice, 6th edition (currently applies to all building classes except offices).
From January 2018, RICS professionals are expected to adopt the Property Measurement Professional Statement in place of the Code for offices and Residential unless local laws, or a client require an alternative. Professional Statements for other property classes including industrial and retail will be added over time as the IPMS is expanded.
See RICS Property Measurement for more information.
[edit] Related articles on Designing Buildings
- Building People.
- Gross external area.
- Gross internal area.
- Measurement.
- Net internal area.
- Quantity.
- RICS Property Measurement.
- RICS publishes Land Measurement for Planning and Development Purposes.
- Royal Institution of Chartered Surveyors.
- Standard Method of Measurement.
- New Rules of Measurement.
[edit] External references
Featured articles and news
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.






















