RICS professional indemnity insurance rules for firms: what the Rules of Conduct require

~4 min read

Reviewed by Matthew Bartlett, Director · Last reviewed 2026-07-06

Firms regulated by the Royal Institution of Chartered Surveyors must hold professional indemnity insurance that meets the RICS Rules of Conduct for Firms. The requirement is established under the Rules of Conduct in force since 2 February 2022 and is elaborated in the Regulation and Firm Registration requirements. Every RICS-regulated firm — a partnership, LLP or company in which principals of the firm are RICS members — must be registered for regulation with RICS and must hold PII on RICS-approved terms. The regime is more prescriptive than the accountants' ICAEW framework but less directly rule-based than the solicitors' MTC. This entry sets out the framework, who it binds, and what a compliant policy needs to look like.

The rules and their source

The Rules of Conduct for Firms are made by the RICS Standards and Regulation Board under the authority of the RICS Charter and Bye-laws. Rule 9 imposes the PII obligation. It requires that a firm holds "adequate and appropriate" PII cover that meets the standards prescribed by the RICS from time to time. The prescribed standards are published as the RICS PII Requirements — a document that sits alongside the Rules and is updated periodically as the market and regulatory environment change. Together the Rules and the Requirements form the operational compliance framework for RICS PII.

Who is bound

Every RICS-registered firm carrying out surveying services to the public must hold cover. That includes traditional chartered surveying practices, estate agencies with chartered surveyor principals, valuation firms, building surveyors, quantity surveyors, project management practices with RICS members, and commercial and residential agency firms structured around RICS-registered principals. Sole practitioners registered with RICS as firms are subject to the same requirements as multi-principal practices. Firms that operate under an RICS member's individual credentials but do not themselves register with RICS as a firm may find themselves in an uncertain regulatory position — the practice-firm distinction is one to check early rather than at cover renewal.

What the RICS PII Requirements say

Four aspects of the Requirements matter most at placement. First, the policy must be placed with an insurer that meets the RICS financial strength criteria — currently a PRA/FCA-authorised insurer (or EEA insurer with UK permissions) with an S&P, AM Best or Fitch rating meeting the RICS-published minimum. Second, the limit of indemnity must meet a turnover-based scale, which is discussed in its own entry on the RICS turnover-band scale. Third, the wording must include specific extensions — cover for pollution and contamination in relation to survey work, cover for defamation, cover for loss of documents. Fourth, cover must be on a claims-made basis with a run-off obligation on cessation, currently six years — matching the solicitors' MTC rather than the accountants' two-year floor. Run-off is discussed in its own entry on the RICS six-year run-off requirement.

Where RICS is more prescriptive than ICAEW

The RICS Requirements go further than the accountants' regime on wording. Where ICAEW leaves the specifics of aggregation, defence costs, and excess-of-limit provisions to the insurer's standard wording, RICS specifies minimum expectations for each. Aggregation must be worded so that claims arising from a single event are treated as one claim; defence costs must be either in addition to the limit or, where they erode the limit, the policy must be sized accordingly; and excess-of-limit cover for defence must be considered on higher-value books. The result is that RICS-compliant wordings sit within a narrower range than accountants' wordings, and brokers are usually looking at a smaller effective pool of "compliant with amendment" versus "compliant as issued".

Where the framework meets specific work types

Two work types generate ongoing wording questions. The first is Red Book valuations — valuations performed under the RICS Valuation — Global Standards. These carry a distinctive exposure profile because the valuation figure itself is often the number a lender or investor relies on, and a mis-valuation claim can generate loss quanta well above the valuation fee. The RICS PII Requirements do not require a separate limit for Red Book work, but any firm doing volume Red Book valuation should size accordingly. The second is Building Safety Act 2022 exposure for building surveyors and party-wall surveyors — the extended limitation windows under BSA 2022 s.135 change the run-off calculus materially. Both are covered in their own entries.

Worked example

Illustrative only. A six-partner chartered building surveying practice, £3.2 million turnover, work profile: 40% commercial building surveys, 30% party wall matters, 20% dilapidations, 10% expert witness. The RICS Requirements produce a minimum limit driven by the turnover-band scale (approximately £2m for a firm at that turnover, subject to the published scale). Broker recommendation given the party wall and expert witness exposure: £5m primary layer meeting RICS wording requirements without amendment, plus a £5m top-up layer for a £10m tower. Aggregation reviewed and confirmed compliant with RICS as-issued. Six-year run-off cost estimated at binding for planning purposes. This is illustrative — actual sizing depends on claims history, insurer appetite and market conditions.