RICS marks 50 years of the Red Book 

The Royal Institution of Chartered Surveyors (RICS) is celebrating the 50th anniversary of its Global Valuation Standard, known as the Red Book. This marks five decades supporting consistent, transparent and trusted valuation across global markets.

First published in 1976, the Red Book grew from a UK-focused standard into a globally recognised framework used across jurisdictions and asset classes, supporting valuations that underpin financial reporting, secured lending, investment decisions and major capital transactions.

In the UK alone, assets representing an estimated £10 trillion of residential and commercial real estate value have been assessed using the standard and principles embodied in the Red Book. Its influence extends from homes and commercial property to infrastructure, agriculture, forestry, plant and machinery, businesses and emerging and specialist asset classes. It is used in the Arts and Antiques sectors for valuation, in a global market worth billions.

The origins of the Red Book date back to the early 1970s property boom and subsequent market collapse. RICS and the Institute of Chartered Accountants in England and Wales established a joint working party to address concerns around inconsistent valuation bases and reporting. In 1976, the first edition of Guidance Notes on the Valuation of Assets was published.

Over five decades, the standard evolved with global markets, regulation and the valuation profession. Today, the Red Book provides overarching principles covering ethics, objectivity, competence and transparency, whilst providing a framework in which valuers can exercise professional judgement.

The standard is reviewed and reissued every two years, informed by consultation with valuation professionals around the world. The Red Book has been translated into Arabic, Dutch, French, German, Chinese, Spanish and Italian, with Greek and Czech translations in development.


Charlotte Neal, Director of Professional Practice and Research at RICS, said:

“For fifty years, the Red Book has provided a reliable framework that professionals can exercise their judgement within. Its value lies not simply in consistency, but in the credibility and trust that consistency creates.

“This credibility is crucial during periods of economic uncertainty. When capital is at risk, investors, lenders, governments and the public need confidence in the valuations on which decisions are being made.

“The Red Book will continue to evolve as technology, data, sustainability and new asset classes reshape the profession, but whatever changes come, the fundamental principles of integrity, objectivity and professional judgement will remain at its heart.”

To mark the anniversary, RICS is undertaking a programme of worldwide activity, including global round tables examining how the Red Book is applied in different markets, case studies featuring the range of asset classes the Red Book governs, a podcast on the future of valuation hosted by CoStar Editor Paul Norman, and a celebratory event and panel session in November. Insights from these activities will inform discussion about how the standards should continue to evolve and will aid the design of the next Red Book issue due in 2027.

The anniversary will focus not only on the Red Book’s heritage, but on the challenges facing valuation over the coming decades, including artificial intelligence and technology, big data, sustainability and the emergence of new asset classes.