Can you reclaim SDLT if a property was not suitable for use as a dwelling when you bought it?

Introduction

Many buyers ask whether they can reclaim Stamp Duty Land Tax (SDLT) if a property was in very poor condition at the date of purchase. This usually comes up where the buyer later discovers major defects, extensive disrepair, or serious health and safety issues, and wants to know whether the property should have been treated as non-residential for SDLT purposes.

The answer depends on the condition of the property at the effective date of the transaction, usually completion. The legal test is not whether the property needed work, renovation, or modernisation. The question is whether it was truly unsuitable for use as a dwelling at that time. Following recent case law, that threshold is now relatively high.

The Question

A buyer who purchased several residential properties wants to know whether any of them may qualify for an SDLT refund on the basis that, at the time of purchase, they were not suitable for use as dwellings. The buyer has been asked to provide the usual conveyancing documents, including the TR1, SDLT5, sale contract and completion statement, together with evidence of the condition of each property at the time of purchase, such as photographs, surveys and a schedule of works.

Nick’s Explanation

Nick’s core point was practical and evidence-based: before anyone can assess whether an SDLT reclaim is viable, the documents and condition evidence need to be reviewed carefully. In anonymised form, his explanation was that the key material includes:

• the transfer deed, SDLT certificate, signed contract and completion statement;
• photographs showing the condition at purchase;
• surveys or reports prepared at or near the purchase date; and
• details of the works actually required.

That approach reflects the way these cases are decided. A refund claim does not succeed simply because works were later carried out, or because a property looked unattractive, dated or neglected. The buyer needs evidence showing the actual condition on completion and why that condition meant the building was not suitable for use as a dwelling.

Nick also pointed the buyer to material concerning HMRC compliance and housing condition evidence. That is important because HMRC will usually look closely at whether the defects were serious enough to cross the legal threshold, and whether the evidence genuinely relates to the relevant date.

The Law

SDLT on land transactions is charged under the Finance Act 2003. Different rates can apply depending on whether the subject matter is residential property, non-residential property, or mixed-use property.

For SDLT purposes, a building is generally treated as residential property if it is used or suitable for use as a dwelling, or is in the process of being constructed or adapted for such use. The key issue in many refund claims is the meaning of “suitable for use as a dwelling”.

If a property was not suitable for use as a dwelling at the effective date of the transaction, it may fall outside the residential rates. In some cases, that can mean the non-residential rates apply instead, potentially producing a refund if SDLT was originally paid on a residential basis.

However, the courts have made clear that this is a strict test. A property does not cease to be residential merely because it needs repair, refurbishment, updating, or even substantial works. The condition must be such that the property was not suitable for use as a dwelling at all.

In an uninhabitable or not suitable for use case, the condition thresholds are now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Analysis

When considering whether a property was unsuitable for use as a dwelling, the analysis usually works as follows.

First, identify the relevant date. The question is judged at the effective date of the land transaction, which is usually the completion date. Later improvements or later deterioration are not the test.

Second, gather the right evidence. Useful documents often include:

• the contract, transfer and completion statement;
• the SDLT return and SDLT5;
• RICS surveys, valuation reports, lender reports or structural reports;
• photographs taken at or very close to completion;
• builders’ schedules of work;
• local authority or environmental health records, where relevant; and
• evidence showing whether basic facilities were missing or unusable.

Third, distinguish between disrepair and true unsuitability. A property may still be suitable for use as a dwelling even if it has:

• old or damaged kitchens and bathrooms;
• damp, mould or leaks;
• outdated wiring or heating;
• broken plaster, damaged flooring or missing fittings; or
• significant cosmetic or structural works needed before comfortable occupation.

Those facts may show that the property was in poor condition, but not necessarily that it failed the SDLT test.

Fourth, ask whether the defects were so severe that the property could not realistically be used as a dwelling at completion. Examples that may support a claim, depending on evidence and severity, can include the absence of any functioning kitchen or bathroom, serious fire or flood damage, major structural instability, or conditions making lawful or practical occupation impossible. Even then, the threshold remains demanding.

Fifth, consider the effect of Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That decision reinforces that the courts will not treat every heavily defective property as non-residential. The test is not whether a reasonable buyer would want to live there immediately, nor whether mortgage lenders or surveyors described it as uninhabitable in a broad, practical sense. The legal question is narrower and stricter: was it suitable for use as a dwelling for SDLT purposes? The Court of Appeal has made clear that the bar is relatively high.

Finally, remember that HMRC will often test the evidence against the purchase documents and the factual context. If the property was bought on a standard residential contract, insured as a dwelling, valued as a house or flat, or capable of occupation with repairs, HMRC may argue that it remained residential property despite its poor condition.

Outcome

A buyer may be able to reclaim SDLT if the property was genuinely not suitable for use as a dwelling at the date of purchase. But a refund is not available simply because the property needed substantial renovation or was described as uninhabitable in everyday language.

Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold in these cases is now relatively high. Strong contemporaneous evidence is essential.

Practical Steps

If you want to assess whether an SDLT reclaim may be possible, the sensible next steps are:

1. Collect the core transaction papers: TR1, SDLT5, signed contract and completion statement.
2. Gather evidence of the condition at the purchase date, especially photographs, surveys and reports.
3. Prepare a clear schedule of the defects that existed on completion, separating essential habitability issues from ordinary repair items.
4. Check whether the evidence is contemporaneous. Later photographs and later contractor opinions carry less weight unless they clearly relate back to the purchase date.
5. Review whether the property lacked basic facilities or had defects so serious that it could not be used as a dwelling at all.
6. Compare the facts against the stricter approach confirmed in Mudan.
7. If a claim is being considered, ensure the legal basis is identified properly before submitting anything to HMRC.

Conclusion

A property in poor condition does not automatically qualify for an SDLT refund. The real question is whether it was suitable for use as a dwelling on completion, and that is now judged against a relatively high threshold. The strength of the claim will usually turn on the quality of the contemporaneous evidence.

Legal References Used

• Finance Act 2003
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

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