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

Introduction

Many buyers ask whether they can reclaim Stamp Duty Land Tax (SDLT) if the property they bought was in such poor condition that it could not realistically be lived in at the date of purchase. This issue usually comes up where a house had major defects such as structural failure, severe damp, unsafe electrics, roof failure, infestation, or other serious problems requiring major works.

The question matters because SDLT treatment depends on whether the property was a “dwelling” at the effective date of the transaction. If it was not suitable for use as a dwelling at that time, different SDLT consequences may follow. However, this area has become much harder for taxpayers after recent case law. In particular, the condition threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer purchased a residential property that had been empty for a long time and required major works. After completion, further defects became apparent. The reported issues included unsafe electrics, severe damp, pest or insect activity, roof problems, asbestos concerns, cracking, and deterioration to upper floor structure requiring substantial rebuilding. The buyer says the property remained empty before and after completion because it was not fit to live in, and asks whether an SDLT reclaim is likely to succeed on the basis that the property was not suitable for use as a dwelling.

Nick’s Explanation

Nick’s view was cautious. He treated the case as borderline rather than clearly strong.

In anonymised form, his key point was that the crucial question is not simply whether the property needed a lot of work. It is whether the condition at completion was so serious that the building was not suitable for use as a dwelling at all. As he put it in substance, the real issue is whether the property needed “extensive renovation” or whether it had reached the level of “reconstruction”.

He also noted that an asbestos report which does not show a serious danger may weaken the argument. In other words, the existence of asbestos alone does not automatically make a property unsuitable for use as a dwelling.

Nick further explained that SDLT is self-assessed. That means if a reclaim is made and HMRC later disagrees, the taxpayer may have to repay the tax together with interest. So even where a claim is arguable, the practical risk still needs to be considered.

That reasoning is consistent with the current legal position. A property does not fall outside “dwelling” status just because it is unpleasant, outdated, awkwardly laid out, or expensive to repair. The defects must be serious enough to cross a high legal threshold.

The Law

The main legislation is found in the Finance Act 2003.

For SDLT purposes, the classification of property depends on the nature of the subject matter at the effective date of the transaction, usually completion. A building intended for use as a home will normally be treated as residential property if it is a dwelling. The difficult cases are those where the property is physically damaged or derelict.

The legislation does not turn every defective house into non-residential property. The legal question is whether, at the relevant date, the property was suitable for use as a dwelling. That is a factual question judged objectively.

HMRC’s published approach has generally been restrictive, and the courts have also made clear that serious disrepair does not automatically prevent a building from being a dwelling. The recent Court of Appeal decision in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 confirms that the threshold is relatively high. The case makes clear that many properties needing extensive renovation will still count as dwellings. The issue is not whether the buyer intended to renovate, nor whether the property was vacant, but whether it was actually unsuitable for use as a dwelling at completion.

Analysis

The analysis usually proceeds in stages.

First, identify the condition of the property at completion, not months or years later. The buyer must show what the state of the property was on the effective date of the purchase. Survey reports, photographs, contractor evidence, invoices, specialist reports, and completion documents may all help.

Second, separate serious defects from ordinary disrepair. Many houses are bought with damp, poor layouts, outdated wiring, worn roofs, old kitchens, defective finishes, pest issues, or the need for major refurbishment. Those matters may justify a lower price and substantial works, but they do not necessarily mean the property ceased to be a dwelling.

Third, ask whether the property retained the basic character of a place someone could live in, even if only after cleaning, limited repair, or short-term inconvenience. If the answer is yes, HMRC is likely to argue that it remained a dwelling.

Fourth, consider whether the defects were so fundamental that occupation as a dwelling was not realistically possible. Examples that may strengthen a claim include major structural collapse, failure of essential parts of the building, severe danger affecting ordinary habitation, or a condition approaching the need for reconstruction rather than repair. Even then, the threshold is demanding.

Fifth, consider the evidence carefully. In this type of case, the buyer may say the property was impossible to occupy, but HMRC and the tribunal will focus on objective evidence. For example:

• Did the survey describe immediate danger or merely significant repair needs?
• Was there a functioning kitchen, bathroom, water, heating, and electricity, or at least the physical infrastructure for them?
• Was the roof failing in a way that made occupation impossible, or was it simply in poor condition?
• Was asbestos present but managed, or was it an immediate and serious hazard?
• Did the upper floor require rebuilding because of actual structural failure, or because the buyer chose a deeper renovation scheme?

Applying that approach to the scenario described, there are points in both directions.

Factors supporting a claim include prolonged vacancy, evidence of severe deterioration, unsafe electrics, substantial damp, roof problems, infestation, cracking, and the rebuilding of part of the upper floor structure. Those matters may help show that the property had gone beyond ordinary refurbishment.

Factors weakening the claim include the fact that some issues may still be characterised as major renovation rather than reconstruction, and the asbestos report apparently did not show serious danger. An impractical layout also does not by itself make a building unsuitable for use as a dwelling. Following Mudan, a tribunal may well ask whether this was still fundamentally a house in poor condition rather than a building that had ceased to function as a dwelling.

That is why a case like this is often described as borderline. The buyer may have a factual argument, but it is not a straightforward one, and the courts now require a high standard before accepting that a residential building was not suitable for use as a dwelling.

Outcome

The practical conclusion is that a reclaim may be arguable, but it is not likely to be a clear or low-risk claim on these facts alone. A property needing major renovation is not enough. The buyer would need persuasive evidence that, at completion, the building had deteriorated to the point where it was not suitable for use as a dwelling at all.

After Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold is relatively high. So unless the evidence shows something closer to reconstruction-level failure, many claims of this kind are vulnerable to refusal.

Practical Steps

If you are assessing a similar SDLT position, the sensible next steps are:

• Gather evidence showing the exact condition of the property at completion.
• Obtain and review the survey, specialist reports, photographs, contractor opinions, and any mortgage valuation.
• Check whether the evidence shows serious danger or structural failure, rather than ordinary but expensive disrepair.
• Focus on whether the building was objectively unsuitable for use as a dwelling on the completion date.
• Compare the facts carefully with the reasoning in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
• Consider the practical tax risk if HMRC rejects the claim or later challenges an amendment.
• Keep in mind that SDLT is self-assessed, so the taxpayer remains responsible for any underpaid tax and interest if HMRC successfully disputes the position.

Conclusion

A buyer cannot usually reclaim SDLT just because a property was empty, neglected, or required major works. The key legal test is whether it was suitable for use as a dwelling at completion. Since Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, that threshold is relatively high. In a severe disrepair case, the claim may still be arguable, but only strong evidence of truly fundamental failure is likely to succeed.

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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