Can you reclaim SDLT if a house was in very poor condition when you bought it?

Introduction

Many buyers ask whether they can reclaim Stamp Duty Land Tax (SDLT) where a property was in such poor condition at completion that it was not suitable for use as a dwelling. This usually comes up where the house had serious disrepair, defective services, water damage, unsafe electrics, or basic facilities that could not properly be used.

The key point is that SDLT residential rates only apply if the property was a dwelling at the effective date of the transaction. If it was not suitable for use as a dwelling on that date, different SDLT treatment may apply. However, the legal threshold is now relatively high, especially following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer purchased an older house that had been occupied for many years and had then fallen into substantial disrepair. The evidence available included photographs and other transaction material. The problems said to exist at the purchase date included general neglect, a kitchen that could not properly be used, a bathroom that could not properly be used, serious water ingress caused by leaking pipework, old or unsafe electrics, and a number of other safety and condition issues throughout the property.

The buyer wanted to know whether those conditions were enough to support an SDLT reclaim on the basis that the property was not suitable for use as a dwelling when it was bought.

Nick’s Explanation

Nick’s initial view was that the buyer appeared to have a strong factual case based on the condition shown in the photographs. In anonymised form, his assessment was that there was:

• general property neglect;
• a kitchen not fit for use;
• a bathroom not fit for use;
• serious water ingress issues caused by leaking pipes;
• old or unsafe electrics; and
• other defects such as worn floor coverings and unsafe fixed items.

That kind of evidence is relevant because the SDLT test focuses on the actual condition of the property at the effective date of the transaction, not on whether the buyer later intended to renovate it.

Even so, a strong factual case on photographs does not automatically mean the legal test is met. The question is whether the condition was so serious that the building ceased to be suitable for use as a dwelling, rather than merely being dated, neglected, or in need of repair.

The Law

SDLT is charged under the Finance Act 2003. Residential rates apply where the subject matter of the transaction consists of or includes a dwelling. A building counts as a dwelling if it is used or suitable for use as a single dwelling, or is in the process of being constructed or adapted for such use.

In practical terms, disputes usually turn on whether the property was “suitable for use” as a dwelling at the effective date of the transaction. HMRC and the courts look at the property as it actually stood on completion.

The case law has developed significantly in this area. Earlier decisions sometimes gave taxpayers more room to argue that severe disrepair took a property outside the dwelling definition. More recent authority has tightened the position.

The most important current authority is Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Following that Court of Appeal decision, the threshold for showing that a property was not suitable for use as a dwelling is relatively high. Serious disrepair, lack of modernisation, poor decorative condition, or the need for substantial works will not by themselves be enough if the property still retained the basic character of a dwelling.

The courts distinguish between:

• a property that is run down, outdated, neglected, or expensive to repair; and
• a property whose condition is so severe that it is no longer suitable for residential occupation as a dwelling at all.

That is a factual and objective test.

Analysis

The correct approach is to work through the condition issues step by step.

First, identify the state of the property at completion. The relevant date is the effective date of the transaction, usually completion. Later works, later surveys, or later deterioration are not the test, although they may help show what the condition was at the relevant time.

Second, separate true habitability issues from ordinary renovation issues. A property may need a new kitchen, new bathroom, rewiring, replastering, replacement flooring, or a full refurbishment and still remain a dwelling for SDLT purposes. The fact that a buyer would not want to move in immediately is not enough on its own.

Third, look at essential living functions. Questions often include:

• Was there a functioning kitchen or at least the practical ability to prepare food?
• Was there a usable bathroom or toilet?
• Was there a safe water supply and drainage?
• Was the electrical system functional and safe enough for ordinary occupation?
• Were there structural or damp issues so severe that occupation was unrealistic?

Fourth, consider whether the defects were temporary repair issues or whether they deprived the building of its essential nature as a home. For example, old fittings, leaks, unsafe appliances, worn carpets, and outdated rooms may show serious disrepair, but the property can still remain a dwelling if the core residential facilities still existed in substance.

Fifth, weigh the evidence objectively. Useful evidence commonly includes:

• dated photographs from around completion;
• surveyor or contractor reports;
• completion statements and sale particulars;
• invoices and schedules of immediate remedial works;
• evidence that key services were disconnected or unusable; and
• witness evidence explaining the actual condition at the purchase date.

Applying that approach to this scenario, the buyer’s evidence points toward more than mere cosmetic updating. A non-functional kitchen, non-functional bathroom, serious water ingress, and unsafe electrics are all potentially significant. Those matters can support an argument that the property was not suitable for use as a dwelling at completion.

However, the modern legal position is stricter than many buyers expect. Following Mudan, even substantial disrepair does not automatically take a property outside the dwelling definition. The decision-maker would ask whether, despite the defects, the building still objectively remained a house capable of residential use, albeit in poor condition and requiring major work.

So the strength of the claim would depend on how far the evidence shows that the kitchen and bathroom were genuinely unusable, the services were unsafe or inoperative, and the water ingress and other defects made ordinary occupation unrealistic at the time of purchase.

Outcome

A buyer in this position may have an arguable SDLT reclaim if the evidence shows the property was not suitable for use as a dwelling at completion. Serious water ingress, unsafe electrics, and unusable washing and cooking facilities can all be important indicators.

But the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. A property will not fall outside the dwelling test merely because it was old, neglected, unsafe in some respects, or in need of substantial renovation. The defects must be serious enough that the property was not suitable for use as a dwelling at the relevant date.

Practical Steps

If you are assessing a possible reclaim, the most useful next steps are:

1. Gather photographs taken at or very near completion.
2. Obtain any survey, snagging, contractor, or electrical reports referring to the condition at that time.
3. Collect evidence showing whether the kitchen, bathroom, water, drainage, heating, and electrics were actually usable.
4. Keep records of the first remedial works carried out after purchase and why they were necessary.
5. Review the sale particulars carefully, as they may help or hinder the argument depending on how the property was marketed.
6. Compare the facts against the current case law, especially Mudan, rather than relying on older and more taxpayer-friendly summaries.

The practical question is not simply whether the property was in a bad state. It is whether the evidence proves that, at completion, it was no longer suitable for use as a dwelling in the legal sense.

Conclusion

A severely neglected house can sometimes support an SDLT reclaim, but only where the condition at completion crossed the line from disrepair into genuine unsuitability for use as a dwelling. Evidence of unusable basic facilities and major defects is essential, and the legal threshold is now relatively demanding after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

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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