Can you reclaim SDLT on a property with damp, mould or serious disrepair?

Introduction

Many buyers ask whether they can reclaim Stamp Duty Land Tax (SDLT) after buying a property that turned out to be in very poor condition. This usually comes up where the buyer paid SDLT, sometimes including the 3% higher rates, and later learns that there may be special treatment for a dwelling that was not suitable for use as a home at the date of purchase.

The key question is not simply whether the property had defects. The legal test is stricter than that. Problems such as damp, mould, neglect or general disrepair do not automatically mean the property was not residential for SDLT purposes. In uninhabitable cases, the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer wants to know whether they may be able to reclaim SDLT where:

• the purchase took place within the last four years,
• the property was in England or Northern Ireland,
• the property had serious condition issues at the time of purchase, such as damp, mould or neglect, and
• the buyer paid SDLT, potentially including the 3% higher rates for additional dwellings.

The underlying issue is whether the condition of the property at completion was bad enough to affect its SDLT treatment.

Nick’s Explanation

Nick’s explanation can be summarised as follows: a refund is not available just because a property needed work. The real issue is whether, at the effective date of the transaction, the building was suitable for use as a dwelling under the SDLT rules.

In anonymised terms, his point is that buyers should first identify:

• whether the transaction is still within the time limit for amending or reclaiming,
• whether the property was genuinely unsuitable for use as a dwelling at completion, and
• whether the SDLT originally paid was calculated on the basis that the property was residential, including any higher residential rates.

That approach is important because many claims fail where the facts show a property was run down but still capable of being lived in, at least in basic terms. The courts have made clear that the test is not whether the property was attractive, modern, mortgageable or in need of substantial renovation. The question is whether it was suitable for use as a dwelling at the relevant date.

The Law

SDLT applies to land transactions in England and Northern Ireland under the Finance Act 2003. The amount payable depends in part on whether the subject matter is residential property, non-residential property, or mixed property.

For SDLT purposes, 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. The statutory definition appears in Schedule 4ZA to the Finance Act 2003 and related SDLT provisions.

Where a property is residential and the buyer owns or is treated as owning another dwelling, the higher rates for additional dwellings may apply. Those higher rates are commonly referred to as the additional 3%, although the precise surcharge structure depends on the date of the transaction and the rates then in force.

If a property was not suitable for use as a dwelling at the effective date of the transaction, it may fall outside the residential definition for that purpose. In some cases, that can affect whether residential rates or higher residential rates should have been charged.

Claims and amendments are also subject to time limits. In broad terms, SDLT returns can usually be amended within 12 months of the filing date. Repayment claims outside that route may depend on the statutory framework relied on and the facts of the case. Anyone considering a reclaim should check the exact procedural route and deadline that applies to their transaction.

Analysis

The analysis usually works in five stages.

First, identify the effective date of the transaction, usually completion. The condition of the property must be tested at that date, not after later stripping out, demolition or renovation.

Second, examine the actual physical state of the building at completion. Relevant evidence may include:

• survey reports,
• photographs and videos taken at the time,
• builder or contractor reports,
• environmental health material,
• insurance or lender correspondence, and
• completion statements and sale particulars.

Third, apply the legal test of suitability for use as a dwelling. This is where many buyers overestimate the strength of a claim. Serious damp, mould, outdated services, damaged plaster, missing kitchens or bathrooms, infestation, or long-term neglect may all be relevant. But they do not automatically prove the property was unsuitable for use as a dwelling.

Fourth, consider the case law. The courts have repeatedly treated the test as a practical one focused on whether the property could be used as a home at the relevant date. The threshold in uninhabitable cases is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That means a buyer usually needs more than evidence of poor condition or a need for substantial refurbishment. There must be a strong factual basis for saying the building was not suitable for residential use at all at completion.

Fifth, if the property was not suitable for use as a dwelling, consider the SDLT consequences. Depending on the facts, that may mean:

• the property should not have been treated as residential,
• the higher rates for additional dwellings should not have applied, or
• a different SDLT calculation was required.

However, if the property was still suitable for use as a dwelling, even in poor condition, then the original residential SDLT treatment may have been correct and no reclaim will be due.

Outcome

A buyer may be able to reclaim SDLT if the property was genuinely not suitable for use as a dwelling at the date of completion and the original SDLT was calculated on a residential basis that should not have applied.

But the presence of damp, mould, neglect or disrepair on its own is not enough. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold for showing that a property was not suitable for use as a dwelling is relatively high. Many rundown properties will still count as residential for SDLT purposes.

Practical Steps

If you are assessing your own position, the sensible next steps are:

• check the completion date to see whether any amendment or reclaim route may still be open,
• gather evidence showing the condition of the property at completion, not after works began,
• review the SDLT return and confirm whether residential rates and any higher rates were applied,
• compare the facts against the legal test of suitability for use as a dwelling, and
• take specialist SDLT advice before submitting a reclaim.

It is especially important to avoid making a claim based only on broad descriptions such as “uninhabitable”, “derelict” or “needed a full refurb”. Those labels are not enough by themselves. The evidence must show why, in legal terms, the property was not suitable for use as a dwelling at the effective date.

Conclusion

You may be able to reclaim SDLT on a defective property, but only where the facts show more than ordinary disrepair or serious renovation needs. The central question is whether the property was suitable for use as a dwelling at completion. Because the courts now apply a relatively high threshold, especially after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, each case turns on detailed evidence.

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.

See all questions and answers categorized in this sitemap. Or use Google site search below.