When someone loses the mental capacity to manage their own affairs, the person acting for them — a deputy appointed by the Court of Protection, or an attorney under a Lasting Power of Attorney — frequently needs an independent RICS valuation before dealing with that person’s home, and sometimes a home survey as well. Both exist to do the same thing: prove that the decision-maker acted properly, on evidence, in the best interests of the person who lacks capacity. This guide explains when each is needed and why an estate agent’s figure rarely satisfies the Court or the Office of the Public Guardian.
What is a Court of Protection valuation?
A Court of Protection valuation is a formal, independent RICS “Red Book” assessment of a property owned by a person who lacks mental capacity — referred to in the legal framework as “P”. Under the Mental Capacity Act 2005, a deputy or attorney managing P’s property and financial affairs must act only in P’s best interests, and must be able to justify their decisions with evidence if challenged. When a home is to be sold, retained, or purchased on P’s behalf, an evidence-based valuation is the foundation of that justification. Deputies are supervised by the Office of the Public Guardian (OPG) and are held to a higher standard than an ordinary homeowner, because they are making decisions with someone else’s money and someone else’s home. The valuation is not a marketing exercise; it is a professional opinion of value prepared to a defined standard for a defined purpose.
Why won’t an estate agent’s appraisal do?
Because an estate agent’s appraisal is designed to win an instruction, not to withstand scrutiny. A marketing appraisal answers the question “what might this sell for if we list it well?” A Red Book valuation answers a different question: “what is this property worth, on a defined basis, supported by comparable evidence, prepared by a professional who is personally accountable for the figure?” That distinction matters enormously in a Court of Protection context, where the OPG, the Court, or a family member may later question the number. A RICS Registered Valuer follows a structured methodology, carries professional indemnity insurance, and must defend the valuation with evidence if it is challenged. An estate agent typically offers none of those protections and has a natural incentive to quote an optimistic figure to secure the listing. Where a transaction has to stand up to independent examination — as almost every Court of Protection property decision does — the informal appraisal simply does not carry the same weight.
When does a deputy or attorney need court approval to sell?
It depends on the authority already granted. The first step is always to read the deputyship order or the LPA carefully. Most property and financial affairs deputyship orders include authority to manage and sell property, but some do not — and where the order is silent, or contains a restriction preventing the sale of freehold or leasehold property without the Court’s permission, a separate application is required. That application is made on form COP1, supported by a witness statement (form COP24) setting out why the sale is in P’s best interests: the level of care fees, when other funds will run out, and confirmation that P will not be returning to live there. An attorney acting under a registered property and financial affairs LPA usually has authority to sell without a court application, but should still confirm the document grants that power. The Court process can take several months, so early planning matters. Selling without the proper authority risks delay, challenge, and personal liability.
How does a valuation protect a deputy from allegations of undervalue?
By creating a documented, independent evidence trail. A deputy or attorney has a fiduciary duty to obtain a fair market price, and selling at an undervalue can be treated as a deliberate deprivation of P’s capital — with consequences for care-fee assessments — or, in the worst case, expose the deputy to investigation by the OPG and potential personal liability. This is why practitioners routinely recommend obtaining at least one independent valuation, and preferably two. The risk sharpens considerably where there is any conflict of interest. A deputy or attorney cannot sell P’s property to themselves, or to a close family member or friend, without the express prior approval of the Court of Protection — and every step must be transparent and independently valued. The Court has made clear in cases such as Re ACC [2020] EWCOP 9 and Re Buckley [2013] EWHC 2965 (COP) that fiduciaries must be able to justify their decisions with evidence and are subject to close scrutiny in any potentially conflicted transaction. An independent Red Book valuation is the single most effective safeguard.
What about buying and adapting a property for someone who lacks capacity?
This is where a RICS home survey becomes essential rather than optional — and, in most cases, a Level 3 survey rather than a Level 2. Lack of capacity often coincides with physical disability — particularly after a brain injury, or in later life — so a replacement property frequently needs adaptations such as widened doorways, ramps, wet rooms, or ceiling tracks for hoists. Before a deputy or attorney commits P’s funds, they need to know whether a proposed property is genuinely suitable and what adaptation works will realistically cost.
A Level 2 survey — the mid-level RICS report — suits a conventional, reasonably modern property in good order, giving a clear rated overview of condition before purchase. But where the property is older, has been extended or altered, is of non-standard construction, or will need significant adaptation works, a Level 3 survey is the appropriate choice: an element-by-element examination of the construction and condition that sets out defects, repair options, and priorities in detail. That level of detail is exactly what a deputy or attorney needs to judge feasibility and cost, and it feeds directly into the best-interests assessment the Court expects to see. The Office of the Public Guardian’s 2023 Deputy Standards make property management an explicit standard, requiring deputies to deal with P’s property in accordance with the order and always in P’s best interests. Where P’s care needs have changed and the current home is no longer suitable, a properly evidenced survey and valuation together demonstrate that the move, the purchase, and the works were all considered and costed responsibly.
How many valuations should you obtain?
More than one is the safer course. There is no fixed rule, but the consistent theme across Court of Protection practice is that a single figure is easier to challenge than two independent ones that broadly agree. For a straightforward sale, two independent valuations demonstrate that the marketed price reflects genuine market value. Where the property is unusual — a period or listed building, one with development potential, a non-standard construction, or one in poor repair — a surveyor-led Red Book valuation is more reliable than a marketing appraisal, because these properties are precisely the ones where estate agent estimates diverge most widely. If P co-owns the property with someone else and only one owner lacks capacity, additional steps are required: the Court has a specific procedure for appointing a new trustee to enable the sale to proceed, and independent evidence of value remains central throughout.
What should you look for in a valuer or surveyor?
Look for a RICS Registered Valuer who works to the Red Book, carries professional indemnity insurance, and has genuine experience of Court of Protection instructions. The valuer should provide clear terms of engagement defining the property, the client, the purpose, the basis of value, and the scope of inspection — and the report should set out comparable evidence and reasoning, not simply state a figure. Experience of the specific context matters, because a valuer familiar with deputyship and attorney work understands the level of documentation the OPG and the Court expect, and will prepare a report designed to withstand exactly that scrutiny. Sensitivity is part of the job too: these instructions almost always arise at a difficult time for a family, and the professional you appoint should handle the property, and the people, with appropriate care.
How Websters can help
At Websters, our RICS Registered Valuers regularly act for professional and lay deputies, attorneys, and the solicitors who instruct them — preparing Red Book valuations and condition surveys that are built to stand up to the Court of Protection and the Office of the Public Guardian. Whether you need a single independent valuation to support a sale, a survey to inform a decision to repair or adapt, or evidence to accompany a court application, we can advise on the most appropriate approach for the circumstances. If you are acting for someone who has lost mental capacity and need clear, defensible advice on their property, please get in touch with our team.
By Dan Knowles FRICS, Managing Director and Registered Valuer, Websters Surveyors.
This article is intended as general guidance and does not constitute legal advice. Deputies and attorneys should take advice from a solicitor experienced in Court of Protection matters on their specific circumstances.