How Do I Challenge A Property Valuation In Litigation?

A toy house sits atop a stack of coins, with another toy house in the background, likely illustrating home loan or property investment.
 

Disputes over the value of property can arise in a variety of legal contexts, including boundary issues, leasehold enfranchisement, mortgage repossessions, professional negligence claims, and divorce or probate proceedings. In many such cases, property valuation becomes a central and often contentious issue. When disagreements escalate into litigation, challenging an inaccurate or unfair property valuation can be crucial to achieving a just outcome.

At Blackstone Solicitors, we represent individuals, businesses, and property investors across England and Wales in litigation involving property disputes. In this article, we explore how property valuations are used in litigation, what grounds exist for challenging them, and the key legal and procedural steps involved in mounting an effective challenge.

Free Initial Telephone Discussion

For a free initial discussion with a member of our New Enquiries Team, get in touch with us today. We are experienced in dealing with all the legal aspects of Property Litigation, and once instructed, we will review your situation and discuss the options open to you in a clear and approachable manner. Early expert legal assistance can help ensure you are on the best possible footing from the start and also avoid the stress of dealing with these issues on your own. Simply call us on 0345 901 0445 or click here to make a free enquiry and a member of the team will get back to you.

Why Property Valuations Matter in Litigation

A property’s valuation is often more than just a number—it can determine the extent of financial liability, ownership rights, or damages in a dispute. Some common legal situations in which property valuations are relevant include:

  • Landlord and tenant disputes (e.g., lease renewals under the Landlord and Tenant Act 1954)
  • Disputes over compulsory purchase compensation
  • Divorce or separation proceedings involving shared property
  • Inheritance disputes where the value of the estate is contested
  • Mortgage possession proceedings, where the lender’s valuation is challenged by the borrower
  • Professional negligence claims against surveyors or valuers
  • Partnership or company dissolution, where assets need to be divided

Given the financial stakes involved, it is not uncommon for parties to disagree on the valuation placed on a property. Where negotiations break down, litigation often follows.

Understanding the Role of Expert Evidence

In property disputes, valuations are typically provided by expert witnesses—usually chartered surveyors or valuers who are instructed to provide an independent, professional opinion.

Under the Civil Procedure Rules (CPR), expert witnesses have a duty to the court, not the party instructing them. Their role is to provide unbiased evidence to assist the court in reaching a fair decision.

Experts will usually provide:

  • A formal written report
  • An explanation of the methodology used
  • Comparable market data
  • Consideration of any unique features or issues affecting value

If both parties appoint their own experts and their valuations differ significantly, the court may order a joint report or direct the experts to confer and prepare a statement of agreed and disputed issues.

Grounds for Challenging a Property Valuation

There are several legitimate grounds on which to challenge a valuation in litigation. These include:

  1. Errors in Methodology

Surveyors must use appropriate and recognised valuation techniques. These may include:

  • Comparative method – based on recent sales of similar properties
  • Investment method – using rental income and yield rates
  • Residual method – often used for development land
  • Profits method – for trading premises like hotels or pubs

If an expert uses an inappropriate method, applies it incorrectly, or fails to justify their approach, this may be grounds to challenge the valuation.

  1. Incorrect Assumptions or Omissions

Valuers often have to make assumptions about legal title, planning status, physical condition, or tenancies. If those assumptions are clearly incorrect or relevant information is omitted (e.g., flood risk, contamination, easements), the valuation may be fundamentally flawed.

  1. Bias or Lack of Independence

Experts must remain impartial. If it can be shown that a valuer acted with bias, had a conflict of interest, or unduly favoured one party, their report may be discredited or excluded from evidence.

  1. Reliance on Inadequate Comparables

A valuation based on poorly chosen or outdated comparable sales data can be challenged. For example, if the comparables are too geographically distant, not truly similar in nature, or occurred in a different market context, the resulting valuation may be unreliable.

  1. Failure to Comply with RICS or Professional Standards

The Royal Institution of Chartered Surveyors (RICS) sets out professional standards and guidance for valuations. If an expert deviates from these standards without proper justification, it may raise questions about the validity of their opinion.

The Litigation Process for Challenging a Valuation

Step 1: Instructing Your Own Expert

If you disagree with a valuation submitted in litigation, your first step is usually to instruct your own independent expert to review the property and provide a counter-valuation. At Blackstone Solicitors, we work closely with a network of trusted valuation experts who are experienced in giving evidence in court.

Your expert should:

  • Be fully qualified and RICS-registered
  • Have experience with the type of property and dispute in question
  • Be familiar with CPR Part 35 (the rules governing expert evidence)

Step 2: Disclosure and Exchange of Reports

In litigation, expert reports are disclosed to the other party and submitted to the court. Where each side has its own expert, the court may:

  • Order a joint expert if the issues are not complex
  • Require the experts to meet and prepare a joint statement
  • Hold a case management conference to identify areas of disagreement

The joint statement is particularly important, as it clarifies the precise points of dispute between the experts, allowing the court to focus on key valuation issues at trial.

Step 3: Cross-Examination at Trial

Where valuations differ significantly and agreement cannot be reached, the dispute may proceed to trial. Expert witnesses can be cross-examined on their methodology, assumptions, and conclusions.

The judge will ultimately decide which valuation is more persuasive, based on the clarity, reliability, and professional credibility of each expert.

Step 4: Seeking Court Directions or Interim Relief

In some situations—particularly where a property is being sold or divided—the parties may apply to the court for interim directions, such as:

  • An order for sale pending resolution of valuation disputes
  • A stay of proceedings to allow further negotiation or mediation
  • A direction to appoint a single joint expert to break the deadlock

Our team can advise on the strategic use of court procedures to protect your position and ensure your interests are fairly represented.

Professional Negligence and Valuation Disputes

In some cases, a flawed valuation may give rise to a professional negligence claim against the surveyor or valuer. This typically requires proving:

  • The professional owed you a duty of care
  • They breached that duty by acting incompetently
  • You suffered a financial loss as a result

Examples include:

  • Overvaluation leading to excessive mortgage lending
  • Undervaluation in probate or divorce leading to financial disadvantage
  • Failure to identify material defects or planning restrictions

At Blackstone Solicitors, we act for clients pursuing and defending professional negligence claims relating to property valuations, including advising on limitation periods and the required expert evidence.

Tips for Strengthening Your Valuation Challenge

  • Document your concerns early – Keep clear records of correspondence, reports, and any discrepancies you identify.
  • Avoid instructing biased or underqualified experts – The strength of your challenge will depend heavily on the credibility of your own evidence.
  • Be proactive in ADR – Mediation or expert determination can often resolve valuation disputes faster and at lower cost than full litigation.
  • Focus on facts – The more objective data you can provide (photos, comparable sales, survey findings), the more persuasive your position will be.

Why Choose Blackstone Solicitors?

At Blackstone Solicitors, we have a strong track record of representing clients in complex property disputes involving contested valuations. Our services include:

  • Advising on the merits of a valuation challenge
  • Instructing and working alongside expert valuers
  • Preparing and responding to CPR-compliant reports
  • Managing litigation strategy from start to finish
  • Handling professional negligence claims related to property valuations

We serve clients across England and Wales and bring both technical knowledge and strategic insight to every case.

How we can help

We have a proven track record of helping clients deal with the legal aspects of Property Litigation. We will guide you through the process and ensure all checks are carried out swiftly and efficiently and we firmly believe that with the right solicitors by your side, the entire process will seem more manageable and far less daunting. You can read more about the range of property litigation services we offer by clicking here: https://blackstonesolicitorsltd.co.uk/commercial-litigation/

How to Contact Our Property Litigation Solicitors

It is important for you to be well informed about the issues and possible implications of Property litigation. However, expert legal support is crucial in terms of ensuring a positive outcome to your case.

To speak to our Commercial Property solicitors today, simply call us on 0345 901 0445, or click here to make a free enquiry. We are well known across the country and can assist wherever you are based. We also have offices based in Cheshire and London.

Disclaimer: This article provides general information only and does not constitute legal advice on any individual circumstances.

Comments are closed.

  • Contact Us

    • This field is for validation purposes and should be left unchanged.
  • Archives

  • Categories