Reclaiming SDLT on Uninhabitable Auction Properties After Mudan

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Can you reclaim SDLT if a property bought at auction was not suitable for use as a dwelling?
Introduction
Buyers sometimes ask whether Stamp Duty Land Tax (SDLT) was overpaid when they bought a run-down property at auction. The usual argument is that, at the effective date of the transaction, the building was not suitable for use as a dwelling, so it should not have been taxed as residential property in the normal way.
This issue matters because the SDLT treatment can change significantly depending on whether the property was a dwelling at the time of purchase. But the legal test is now stricter than many older online articles suggest. 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 Question
A buyer purchased a property at auction in 2021. The buyer says the property was in poor condition at completion, had been left empty, and then underwent refurbishment for more than a year. The buyer also has photographs from around the time of purchase and wants to know whether that could support an SDLT reclaim on the basis that the property was not habitable or not suitable for use as a dwelling.
Nick’s Explanation
Nick’s core point was that evidence of the property’s condition at the time of purchase is critical. In anonymised form, his request was essentially:
“Are you able to send any pictures of the property at purchase? Also, was the property publicly listed? If so, the listing photographs may help show the condition at the time.”
That is the right starting point. In these cases, the outcome usually turns on the actual state of the property on the effective date of the transaction, not on what works were carried out later or how long refurbishment took afterwards.
The fact that a property was bought at auction, was empty, or needed substantial renovation does not by itself prove that it was not suitable for use as a dwelling. The key question is whether, viewed realistically at completion, it had crossed the legal threshold from a dwelling in poor condition into a building that was not suitable for use as a dwelling at all.
The Law
The relevant starting point is the Finance Act 2003. SDLT on land transactions depends in part on whether the subject matter is residential property. A building counts as residential property if it is used or suitable for use as a dwelling, or is in the process of being constructed or adapted for such use.
For many years, taxpayers relied on arguments that a severely run-down property was not “suitable for use as a dwelling” and therefore should not be treated as residential property. One of the best-known authorities in this area is HMRC v PN Bewley Ltd, which considered the meaning of suitability in this context.
However, the legal position has developed, and the threshold is now understood to be relatively demanding. The Court of Appeal in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 confirmed that not every dilapidated, defective or refurbishment-heavy property falls outside the dwelling test. Serious disrepair is not enough on its own. The defects must be such that, at the relevant date, the property is truly not suitable for use as a dwelling.
That means the question is not simply whether the property was attractive to live in, mortgageable, modernised, or ready for immediate occupation without work. The question is whether it remained suitable for use as a dwelling in a real-world sense despite its condition.
Analysis
To assess a case like this, it helps to work through the issue in stages.
First, identify the relevant date. For SDLT purposes, the condition of the property is tested at the effective date of the transaction, usually completion. Evidence from before and after that date can help, but only insofar as it shows the true condition at that time.
Second, gather objective evidence. Useful evidence may include:
- auction particulars and legal pack material;
- sales photographs;
- survey reports or valuation reports;
- contractor reports;
- invoices for urgent remedial works;
- utility disconnection evidence;
- local authority notices, if any;
- dated photographs showing the state of kitchens, bathrooms, electrics, heating, water supply, windows, roof, floors and structural issues.
Third, separate major refurbishment from legal unsuitability. A property may need a new kitchen, bathroom, boiler, rewiring, replastering, damp treatment, decoration and general updating, yet still be suitable for use as a dwelling. Even a long refurbishment period after purchase does not prove the contrary. Buyers often choose to carry out extensive works for commercial or investment reasons.
Fourth, look for defects that go to basic residential use. A stronger case may exist where the property lacked essential facilities or had defects so severe that normal residential occupation was not realistic. Examples might include very serious structural instability, no functioning kitchen or bathroom combined with wider disrepair, no water or drainage, dangerous electrics together with other fundamental failures, or conditions making occupation unsafe in a substantial way. Even then, the threshold remains high after Mudan.
Fifth, be careful with evidence that cuts both ways. Marketing photographs can help, but they can also undermine the claim if they show a property that still appears broadly capable of residential use. The fact that an auction listing showed only the “nice parts” may be relevant, but HMRC and a tribunal would still look at the whole picture.
Sixth, consider whether the property was still recognisably a dwelling. If it was a house or flat with the basic character of a residence, and the defects were remediable renovation issues rather than a complete loss of residential functionality, HMRC may well argue that it remained residential property for SDLT purposes.
Finally, timing matters for any reclaim. SDLT amendment and overpayment relief routes are subject to statutory limits and procedural rules. Whether a claim can still be made depends on when the return was filed, what was originally claimed, and which procedural route is available.
Outcome
The practical answer is that a reclaim is possible only if the buyer can show that, at completion, the property was not suitable for use as a dwelling under the Finance Act 2003 test. Evidence such as photographs, auction particulars and reports may help, but the fact that the property was empty, bought at auction, or refurbished for more than a year is not enough by itself.
Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold in uninhabitable or not suitable for use cases is now relatively high. Many properties that are shabby, dated or in serious disrepair will still count as dwellings for SDLT purposes.
Practical Steps
If you are assessing a similar SDLT position, take these steps:
- Obtain the SDLT return, completion statement and purchase contract.
- Collect dated photographs from the time of purchase.
- Find the auction listing, particulars, and any archived marketing material.
- Check whether there was a survey, valuation, builder’s report or schedule of works prepared near completion.
- List the exact defects present on the completion date, not just works done later.
- Focus on whether the defects prevented the property from being suitable for residential use, rather than whether it needed renovation.
- Review the claim promptly because SDLT time limits and procedural routes matter.
- Compare the facts carefully with the current case law, especially HMRC v PN Bewley Ltd and Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
Conclusion
A property in poor condition does not automatically qualify for an SDLT reclaim. The legal question is whether it was actually not suitable for use as a dwelling at the relevant date. That is now a demanding test, and after Mudan the condition threshold is relatively high. The best starting point is strong contemporaneous evidence showing the property’s true state at completion.
Legal References Used
- Finance Act 2003
- HMRC v PN Bewley Ltd
- 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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