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 recover Stamp Duty Land Tax (SDLT) if a property was in very poor condition at the time of purchase. The issue usually arises where the buyer later discovers serious defects, substantial disrepair or hazards that made the building difficult or impossible to live in safely.

This question matters because SDLT is charged differently on residential and non-residential property. If a building was not suitable for use as a dwelling on the effective date of the transaction, the buyer may argue that the purchase should not have been taxed as residential. That can lead to a refund claim. However, the legal test is strict, and recent case law has made clear that the threshold is now relatively high.

The Question

A buyer purchased one or more properties and paid SDLT on the basis that they were residential dwellings. After completion, the buyer considered whether the properties may actually have been unsuitable for use as dwellings at the time of purchase because of their condition and the extent of works required.

The buyer wanted to know whether an SDLT reclaim might be possible and what evidence would be needed to assess the position properly.

Nick’s Explanation

Nick’s response focused on the practical starting point for this type of SDLT review. In anonymised form, his explanation was that an adviser would usually need the core conveyancing documents and evidence of the property’s condition at the date of purchase before forming a view.

That includes documents such as:

• the transfer deed
• the SDLT filing certificate
• the signed sale contract
• the completion statement
• photographs showing the condition at the time of purchase
• a schedule of works
• surveys, reports or other evidence describing the defects

The reasoning behind that approach is straightforward. Whether a property was suitable for use as a dwelling is a fact-sensitive question. It cannot usually be answered by saying only that the property needed renovation, had been empty, or required substantial expenditure. The evidence must show what the building was actually like on the effective date of the transaction.

Nick also directed attention to guidance on habitability and housing hazards, reflecting the fact that these cases often turn on detailed evidence about safety, sanitation, utilities, structure and basic living facilities.

The Law

The key SDLT legislation is found in the Finance Act 2003. For these purposes, the central issue is whether the subject matter of the transaction was “residential property”.

Under section 116 of the Finance Act 2003, 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. If the property is not suitable for use as a dwelling at the effective date, it may fall outside the residential rules.

That matters because the SDLT rates for non-residential or mixed property differ from the residential rates. In some cases, if a property was wrongly treated as residential, the taxpayer may amend the return or make a repayment claim, subject to the statutory time limits and HMRC procedures.

The main legal question is not whether the property was attractive, modern, mortgageable or ready for immediate occupation without works. The question is whether, viewed objectively at the effective date, it was suitable for use as a dwelling.

Case law has shown that this is a demanding test. A property may still be suitable for use as a dwelling even if it is in poor condition, requires major refurbishment, lacks modern fittings, or contains defects that a buyer intends to remedy.

In particular, in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the Court of Appeal confirmed that the threshold in uninhabitable or not suitable for use cases is relatively high. The fact that works are needed, even significant works, will not by itself mean the property was unsuitable for use as a dwelling for SDLT purposes.

Analysis

The analysis usually proceeds in five stages.

First, identify the effective date of the transaction. In most cases this is completion, though substantial performance can sometimes be relevant. The property must be assessed as it stood on that date, not by reference to later deterioration or later stripping out works.

Second, gather contemporaneous evidence. The strongest evidence usually includes:

• survey reports prepared before purchase
• lender valuations
• photographs and videos taken before or at completion
• quotes, contractor reports and schedules of works
• local authority notices or environmental health evidence, where applicable
• evidence showing whether utilities, sanitation and basic facilities were functioning

Third, distinguish between serious disrepair and true unsuitability for use as a dwelling. A property can still be a dwelling even if it has damp, outdated electrics, a damaged kitchen, old bathrooms, missing plaster, leaks or a need for extensive refurbishment. The courts have repeatedly resisted the idea that poor condition alone converts a house into non-residential property.

Fourth, ask whether the building lacked the basic characteristics of a dwelling at the relevant date. Examples that may support an argument of unsuitability include the absence of functioning sanitation, no usable water or electricity in circumstances making occupation unrealistic, severe structural failure, or conditions presenting such serious hazards that the building could not reasonably be used as a home. Even then, the evidence must be strong.

Fifth, apply the higher threshold now emphasised by Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Following that decision, an uninhabitable or not suitable for use argument should be approached cautiously. The courts are looking for more than inconvenience, poor condition, refurbishment needs or temporary lack of comfort. The condition must be sufficiently serious to take the property outside the concept of a dwelling for SDLT purposes.

That is why the document list mentioned by Nick is so important. The transfer, contract, SDLT certificate and completion statement establish the transaction details. The photos, works list and surveys help answer the real legal question: what was the building actually like on the purchase date, and did that condition cross the high legal threshold?

Outcome

A buyer may be able to reclaim SDLT if the property was genuinely not suitable for use as a dwelling at the effective date of purchase. But this is not easy to prove. The current legal position is restrictive, and the condition threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

In practical terms, a claim is more likely to succeed where there is clear contemporaneous evidence of very serious defects affecting the building’s basic use as a home. A claim is less likely to succeed where the property was simply run down, dated, vacant, difficult to mortgage, or in need of substantial renovation.

Practical Steps

If you are assessing whether an SDLT reclaim may be possible, the usual next steps are:

• obtain the transfer deed, sale contract, SDLT filing record and completion statement
• collect all photographs and videos showing the condition at purchase
• gather surveys, valuations, contractor reports and repair schedules
• identify what facilities were missing or unusable on the effective date
• separate pre-existing defects from works carried out after completion
• check the SDLT amendment or repayment time limits
• review the facts against the statutory test in section 116 of the Finance Act 2003 and the current case law

Where the evidence is borderline, it is important to analyse the facts carefully rather than assuming that expensive works automatically mean the property was non-residential.

Conclusion

You can sometimes reclaim SDLT where a property was not suitable for use as a dwelling when bought, but the test is strict and highly fact-specific. A poor or dilapidated condition is not enough on its own. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold for showing true unsuitability is relatively high, so strong contemporaneous evidence is essential.

Legal References Used

• Finance Act 2003, section 116
• 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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