Solicitor Negligence in Property Transactions: How to Make a Claim — Property Passport UK guide
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Solicitor Negligence in Property Transactions: How to Make a Claim

How to pursue a negligence claim against a solicitor or conveyancer who made a legal error in your property transaction, from initial investigation through to settlement or court.

Published: 19 Mar 2026 · Updated: 19 Mar 2026 · 10 min read

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What Is Solicitor Negligence in a Property Context?

Solicitor negligence occurs when your solicitor or conveyancer makes a legal error — one that a competent practitioner would not have made — and that error causes you financial loss. Property transactions are one of the most common areas in which solicitor negligence claims arise.

Examples of property solicitor negligence include:

  • Failure to carry out proper title investigation (missing a restrictive covenant, easement, or overriding interest)
  • Failure to carry out or correctly interpret search results (planning, drainage, environmental)
  • Failing to advise on stamp duty implications or incorrectly calculating stamp duty
  • Missing an exchange deadline or completion deadline, causing financial loss
  • Failure to register the transaction at HM Land Registry promptly
  • Failing to advise on shared ownership or leasehold terms adequately
  • Conflicts of interest — acting for both buyer and seller, or buyer and lender, where this was not permissible

Complaints vs Negligence Claims: Two Different Routes

Before issuing a negligence claim, consider whether your matter is better resolved as a service complaint via the Legal Ombudsman (LeO). If your loss is modest (under £25,000–£50,000) and relates primarily to service quality, the LeO route is quicker and cheaper.

However, if:

  • Your financial loss exceeds the Legal Ombudsman's cap (£50,000), or
  • The error is a clear legal mistake (negligence) rather than a service failure, or
  • The limitation period is approaching

— then a formal negligence claim through the courts is the appropriate route.

You can pursue a LeO complaint and a negligence claim separately, but LeO will usually pause its process if court proceedings are issued.

The Legal Test for Solicitor Negligence

To succeed, you must prove on the balance of probabilities:

1. Duty of care — the solicitor owed you a duty (established by the retainer)

2. Breach — they fell below the standard of a reasonably competent solicitor specialising in property law

3. Causation — the breach caused your loss (if the outcome would have been the same even without the error, there is no causation)

4. Loss — you suffered a quantifiable financial loss

Causation is often the most contested element. The defendant solicitor's argument will frequently be: "Even if we made an error, you would have suffered this loss anyway."

Limitation Period

The standard limitation period for solicitor negligence is 6 years from the date of the breach (the Limitation Act 1980, Section 2). This can be extended by the "Latent Damage Act" provisions — if you did not know of the negligence until later, you have 3 years from the date of knowledge, subject to a 15-year longstop.

This means that a failure to carry out a proper title search in 2018, which you did not discover until 2024, may still be claimable — but you should act promptly.

Step 1: Obtain Your File

Request a copy of your complete file from the solicitor. They are required to provide this. Review it carefully (or have a new solicitor review it) to identify what was and was not done.

If Property Passport UK holds any of the correspondence or documents from the transaction, compile this alongside the file to build a complete picture.

Step 2: Obtain Expert Evidence

Instruct a specialist property solicitor (not a surveyor) to review the file and provide a written opinion on whether the conduct fell below the standard of a reasonably competent solicitor. This expert opinion is essential — negligence claims without supporting expert evidence almost always fail.

The cost of an expert report: typically £1,500–£4,000 depending on the complexity of the matter.

Step 3: Letter of Claim

Before issuing proceedings, you must follow the Pre-Action Protocol for Professional Negligence (PAP). This requires you to send a detailed Letter of Claim to the solicitor or their professional indemnity insurer, setting out:

  • The factual background
  • The negligent acts or omissions alleged
  • A summary of the expert's opinion
  • The amount of loss claimed with supporting evidence

The solicitor has 3 months to respond to a Letter of Claim under the Protocol. During this period, limitation periods are usually acknowledged and paused by agreement.

Step 4: Negotiation and Settlement

Most solicitor negligence claims settle without trial. Once expert evidence is served and the firm's PI insurer is engaged, settlement negotiations typically focus on quantum (the amount of loss). Be prepared for offers of 60–80% of the claimed sum in order to avoid the cost and risk of litigation.

Step 5: Court Proceedings if Necessary

If settlement is not achieved, issue proceedings in the County Court (claims up to £100,000) or High Court (larger claims). Property negligence trials are complex and require specialist solicitors and barristers. Budget for legal costs of 30–50% of the claim value if the matter proceeds to trial.

The Role of Professional Indemnity Insurance

All SRA and CLC regulated firms must carry PI insurance. If the firm has closed, claims can be made against the SRA's Compensation Fund in cases involving dishonesty, or via the solicitor's insurers through the run-off cover period (6 years post-closure).

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