Can you reclaim SDLT because a house needed major repairs when you bought it?

Introduction

A common question in stamp duty land tax cases is whether a buyer can reclaim SDLT on the basis that the property was not suitable for use as a dwelling on the effective date of the transaction. This often comes up where the property had leaks, defective electrics or plumbing, damp, broken appliances, or bathrooms and kitchens that needed work.

The difficulty is that the legal test is now quite strict. A property does not become non-residential simply because it was in poor condition, needed extensive repairs, or was uncomfortable to occupy. The question is whether, at the time of purchase, it was truly not suitable for use as a dwelling.

The Question

The issue was whether a buyer of a house could argue that the property was not suitable for use as a dwelling at completion because it had a range of defects, including roof leaks, a leaking conservatory, defective kitchen equipment, bathroom problems, unsafe electrics, a condemned boiler, damaged guttering, water ingress, and damp.

In broad terms, the buyer wanted to know whether those defects were enough to support an SDLT reclaim on the basis that the property fell outside the normal residential rules at the time of purchase.

Nick’s Explanation

Nick’s view was that this would be a difficult argument to run. In anonymised form, his answer was that it is hard to show that a property was “too dangerous to live in and required more than some renovation or repair” merely because it had serious defects and needed substantial works.

His key point was that HMRC would be likely to challenge any reclaim unless the facts showed something more severe than disrepair and refurbishment. He also noted that a buyer generally has up to four years to amend or reclaim SDLT, so it may be sensible to consider developments in the case law before deciding whether to proceed.

That reasoning is consistent with the current direction of the authorities. In particular, 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.

The Law

SDLT is charged under the Finance Act 2003. Whether the residential rates apply depends in part on whether the subject matter of the transaction consists of residential property.

For these purposes, residential property includes a building that 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 disputes is the meaning of “suitable for use as a dwelling” at the effective date of the transaction, usually completion.

The case law shows that this is an objective test. The tribunal or court looks at the actual condition of the property at the relevant date and asks whether it was suitable to be lived in as a dwelling, not whether it was attractive, modern, convenient, or compliant with every current standard a buyer might expect.

The authorities have repeatedly distinguished between:

• properties that are genuinely not suitable for use as dwellings; and
• properties that are run down, defective, outdated, or in need of repair, renovation, or even substantial refurbishment.

The second category will often still count as residential property for SDLT purposes.

Analysis

Applying those principles step by step, the defects described here are serious, but they do not automatically show that the house was not suitable for use as a dwelling.

First, roof leaks, defective guttering, water damage, and damp are all capable of being consistent with a dwelling that remains residential in character. Many houses with those problems are still legally treated as dwellings even though they plainly need remedial works.

Second, problems with a conservatory are usually not decisive unless the issue affects the core habitability of the main living accommodation. A leaking conservatory or the need to replace it does not usually prevent the main house from being a dwelling.

Third, issues with kitchen appliances are generally weak points in this type of argument. Built-in or freestanding appliances being old, malfunctioning, or condemned does not usually mean the property has ceased to be suitable for use as a dwelling. The same is often true of an outdated cooker arrangement unless there was no realistic ability to prepare food at all.

Fourth, bathroom defects can be more important, especially if there was no functioning toilet or washing facility in the property. But where the problem affects only one bathroom or en-suite, and there are other usable facilities, that will usually not be enough. Even if there was only one bathroom, the tribunal would still examine whether the problem made occupation impossible or merely inconvenient pending repair.

Fifth, unsafe electrics and a condemned boiler sound significant, but the legal question is still whether the house was suitable for use as a dwelling on the effective date. If the works were completed between exchange and completion, or if the property still had essential services at completion, that weakens the reclaim argument. Even where systems needed replacement, that may still be treated as repair or renovation rather than proof that the dwelling was unusable.

Sixth, the overall picture matters. A buyer may point to multiple defects and say that, taken together, they show the house was uninhabitable. HMRC and the courts, however, often ask whether the property retained the basic characteristics of a dwelling and whether occupation was still realistically possible, even if unpleasant or inadvisable without works.

This is where Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 is especially important. The Court of Appeal raised the practical threshold for these claims. The fact that a property needed substantial works, had serious defects, or fell short of modern expectations does not by itself mean it was not suitable for use as a dwelling. The condition must be severe enough to place the property beyond mere disrepair, refurbishment, or renovation.

On the facts described, HMRC would be likely to argue that the property was still a house in poor condition rather than a building that had ceased to be suitable for residential use. Unless there was compelling evidence that essential living functions could not be carried out at completion, the reclaim would face an uphill struggle.

Outcome

The practical conclusion is that a reclaim would be difficult on these facts. A house with leaks, damp, defective services, and damaged or outdated fittings may still be treated as suitable for use as a dwelling for SDLT purposes.

Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold for showing that a property was not suitable for use as a dwelling is relatively high. In most cases, substantial repair needs alone will not be enough.

Practical Steps

If you are assessing a possible SDLT reclaim in a similar case, the sensible next steps are:

• identify the exact condition of the property on the effective date of the transaction, usually completion;
• gather contemporaneous evidence, such as survey reports, contractor reports, photographs, invoices, and correspondence;
• separate defects that amount to disrepair from defects that prevented basic residential occupation;
• check whether essential facilities were available at completion, including water, sanitation, heating, electrics, and basic cooking arrangements;
• consider whether any key works were completed before completion, as that may materially affect the analysis;
• review the SDLT filing date and whether the four-year amendment or reclaim window is still open;
• evaluate the case against the current authorities, especially Mudan, before submitting a reclaim.

Where the evidence points only to a property needing major renovation, caution is warranted. HMRC is likely to resist claims that rely on condition alone unless the facts are unusually strong.

Conclusion

A property is not treated as non-residential for SDLT just because it was in bad condition and needed expensive works. The legal test is whether it was suitable for use as a dwelling at the relevant date, and that is now a demanding threshold. In a case involving leaks, damp, defective systems, and general disrepair, the better view will often be that the property remained residential unless the defects made ordinary occupation genuinely impossible.

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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