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

Introduction

Many buyers look into a Stamp Duty Land Tax (SDLT) reclaim after completing a purchase and hearing that a property may have been “not suitable for use” as a dwelling on the effective date of the transaction. This matters because, if a building is not suitable for use as a dwelling at the relevant time, the purchase may fall outside the normal residential SDLT rules.

However, this is a difficult area and the legal threshold is now relatively high. Recent case law has made it clear that disrepair, age, or the need for renovation will not usually be enough on their own.

The Question

A buyer wants to know whether they may be able to reclaim SDLT on the basis that a property they bought was in poor condition and may not have been suitable for use as a dwelling at completion.

The issue is whether the condition of the property was serious enough, at the effective date of the purchase, to take it outside the ordinary residential SDLT treatment.

Nick’s Explanation

Nick’s explanation can be summarised in this way: the question is not whether the property needed work, nor whether a lender, surveyor or buyer regarded it as unattractive or requiring refurbishment. The real question is whether, on the completion date, the building was objectively suitable for use as a dwelling.

In anonymised terms, his reasoning is that many claims in this area fail because the legal test is stricter than people expect. A property can be run-down, dated, damp, missing some fittings, or in need of substantial repair and still remain suitable for use as a dwelling for SDLT purposes.

Nick’s core point is that the condition must cross a fairly high threshold before HMRC or a tribunal will accept that the property was not suitable for use as a dwelling. That threshold is now even clearer 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 a transaction 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 Schedule 4ZA to the Finance Act 2003 and related SDLT provisions dealing with residential property. In broad terms, 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.

The phrase “suitable for use as a dwelling” has been considered in a number of cases. The test is an objective one. It focuses on the physical condition and character of the property at the effective date of the transaction, usually completion.

Case law has established that:

• the test is not about the buyer’s intentions;
• the test is not about whether the property is ideal, modern, or immediately comfortable;
• the test is not satisfied merely because major works are planned or later carried out;
• serious defects must be such that the building is not suitable to be lived in as a dwelling at that time.

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.

Analysis

The analysis usually starts with the condition of the property on the completion date.

First, identify the actual physical state of the building. Relevant evidence may include survey reports, photographs, mortgage valuation comments, contractor reports, insurance material, and completion documents.

Second, separate serious habitability issues from ordinary disrepair. A property may still be suitable for use as a dwelling even if it has:

• old or damaged kitchen or bathroom fittings;
• damp or mould issues;
• outdated wiring or heating needing replacement;
• cosmetic damage;
• a need for extensive refurbishment.

Third, ask whether the building could realistically function as a dwelling at all on that date. Problems that may be relevant include the absence of basic facilities or defects so severe that occupation as a home is not realistically possible. Even then, the courts have shown that the bar is high.

Fourth, ignore later works except as evidence of the earlier condition. Renovation after completion does not itself prove that the property was previously unsuitable for use as a dwelling.

Fifth, consider the effect of recent authority. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, arguments based on poor condition face a stricter environment. The courts have reinforced that “not suitable for use” is not the same as “in need of repair” or “not fit to modern standards”.

That means a reclaim is most likely to succeed only where the evidence shows truly fundamental defects affecting the property’s character as a dwelling at the effective date.

Outcome

The practical answer is that an SDLT reclaim on “not suitable for use as a dwelling” grounds is possible in principle, but only in a relatively limited range of cases.

If the property was merely dilapidated, outdated, or in need of substantial renovation, that will often not be enough. Since Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold is relatively high and many claims based on ordinary disrepair are unlikely to succeed.

Practical Steps

If you are assessing whether a reclaim may be available, the sensible next steps are:

1. Obtain all evidence showing the property’s condition at completion, especially dated photographs and survey material.
2. Check whether the property had functioning essentials expected of a dwelling, such as sanitation, water, and basic living facilities.
3. Review whether any mortgage lender comments, retention decisions, or insurance issues genuinely relate to suitability for use as a dwelling rather than general lending policy.
4. Compare the facts carefully with the case law rather than relying on informal descriptions such as “uninhabitable”.
5. Consider the SDLT filing date and whether any amendment or repayment claim is still within time.
6. Take advice based on the actual evidence from the transaction date, not just on what work was later done.

Conclusion

A property does not stop being a dwelling for SDLT purposes just because it is in poor condition or needs major refurbishment. The legal test is stricter than that. In uninhabitable or not suitable for use cases, the condition threshold is now relatively high, particularly after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Any reclaim needs strong evidence showing that, on completion, the building was objectively not suitable for use as a dwelling.

Legal References Used

• Finance Act 2003
• 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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