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

Introduction

Many buyers ask whether Stamp Duty Land Tax (SDLT) can be reclaimed where a property was in very poor condition when bought. The usual argument is that the building was not “suitable for use as a dwelling” at the effective date of the transaction, so it should not have been taxed as residential property.

This is a difficult area of SDLT law. A house that simply needs repair, updating or even substantial renovation will often still count as a dwelling. The threshold for showing that a property was not suitable for use as a dwelling is now relatively high, especially following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer had purchased two properties in poor condition and wanted to know whether either purchase supported an SDLT reclaim. The evidence included sales particulars, survey material, structural information, building control documents and photographs showing the condition before and during works.

One property appeared to be a standard renovation project. The other appeared to have been sold partway through major works, with a stronger suggestion that it may have ceased to function as a dwelling at the relevant date.

Nick’s Explanation

Nick’s view was that the two properties should be treated differently.

In relation to the weaker case, his view was that it was “a standard case of a property needing full renovation”. He noted that where “all the key features of a dwelling seem to be present”, HMRC is unlikely to accept that the property was unsuitable for use as a dwelling unless there was some legal restriction preventing residential use.

In relation to the stronger case, Nick considered there was at least an arguable position. He said the property appeared to have been sold during major renovation works and in what could fairly be described as a derelict condition. On that basis, there might be an argument that it had “lost its identity as a dwelling” at the effective date.

After reviewing the matter again, Nick considered that there was an arguable case that the property was not suitable for use as a dwelling, particularly when looked at in light of the Mudan judgment. He remained cautious, however, because HMRC may challenge weak or overstated claims. His overall point was that this kind of reclaim should only be pursued where there is a credible legal basis supported by evidence showing more than ordinary disrepair.

The Law

SDLT is charged under the Finance Act 2003. Whether property is taxed as residential or non-residential depends in part on whether the subject matter includes a “dwelling”.

The key statutory provisions are found in:

• Finance Act 2003, section 55
• Finance Act 2003, section 116
• Finance Act 2003, Schedule 4ZA

For SDLT purposes, a building can still be treated as residential property even if it is vacant, run down or in need of extensive works. The legal question is not simply whether it was attractive, mortgageable or ready for immediate comfortable occupation. The question is whether, at the effective date of the transaction, it was suitable for use as a dwelling.

The case law has developed two important ideas:

• a building may still be a dwelling even if it needs serious repair
• in more extreme cases, a building can be so altered, damaged or stripped out that it has lost its identity as a dwelling

The modern appellate guidance now sets a demanding standard. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold in uninhabitable or not suitable for use cases is relatively high. Ordinary renovation, missing fixtures, outdated services and significant disrepair will not usually be enough on their own.

Analysis

When looking at whether an SDLT reclaim may succeed, the analysis usually runs in stages.

First, identify the effective date of the transaction. The property must be assessed as it stood on that date, not after later works and not by reference to improvements carried out by the buyer.

Second, separate ordinary renovation from loss of dwelling status. A property can still be a dwelling even if it has damp, structural movement, defective services, old kitchens or bathrooms, damaged finishes, or requires major expenditure. Those facts often show disrepair, not legal unsuitability.

Third, consider whether the building had enough of the characteristics of a dwelling at the effective date. Relevant factors may include:

• whether there was a functioning kitchen, bathroom and sanitation
• whether basic services such as water and electricity were present or capable of use
• whether the building remained weatherproof and structurally coherent
• whether the layout still reflected residential use
• whether any demolition or reconstruction had gone so far that the property no longer retained its identity as a home
• whether any legal restriction prevented occupation as a dwelling

Fourth, test the evidence carefully. Sales particulars, survey reports, structural reports, building control documents, dated photographs and completion records can all help. But the evidence must show the condition at the effective date and must support the legal conclusion being advanced.

Applying that approach to the anonymised scenario, the weaker property appears unlikely to qualify. If the building still had the basic features of a home and was simply a heavy refurbishment project, HMRC would be likely to treat it as residential property.

The stronger property is more nuanced. If it had been stripped back or disrupted to such an extent during major works that it no longer functioned as a dwelling and arguably required reconstruction rather than mere repair, there may be a viable argument. Even then, the case is not straightforward. After Mudan, the bar is high, and the claimant would need persuasive evidence that the property had gone beyond disrepair and had genuinely ceased to be suitable for use as a dwelling.

Outcome

The practical conclusion is that not every derelict-looking or heavily renovated property supports an SDLT reclaim. A property that merely needs substantial renovation will usually still be treated as a dwelling.

A reclaim becomes more arguable only where the condition at completion was so severe that the building had effectively lost its identity as a dwelling or was genuinely not suitable for residential use. Even then, success depends heavily on the evidence and on how the facts fit the current case law, including Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Practical Steps

If you are assessing whether a past purchase may support an SDLT reclaim, it is sensible to:

• obtain the SDLT5 certificate, TR1, sale contract and completion statement
• collect dated photographs showing the property at or very close to completion
• obtain any survey, structural engineer or building control documents that describe the condition at the time
• review the sales particulars carefully to see how the property was presented
• separate works that were essential to basic habitability from later improvement works
• consider whether the facts show mere disrepair or something more extreme
• check whether the claim is still within the statutory amendment time limit

Where the case depends on “not suitable for use as a dwelling”, the evidence should be tested against the current high threshold rather than against a broad common-sense impression that the property was in poor condition.

Conclusion

You may be able to reclaim SDLT if the property was truly not suitable for use as a dwelling at the effective date, but this is a narrow category. Most renovation properties will not qualify. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the courts expect a high level of impairment before a building stops being treated as a dwelling for SDLT purposes.

Legal References Used

• Finance Act 2003, section 55
• Finance Act 2003, section 116
• Finance Act 2003, Schedule 4ZA
• 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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