Can you reclaim the higher SDLT rate if a property had serious damp and hazards but no survey?

Introduction

Buyers often ask whether they can reclaim the 3% higher rate of Stamp Duty Land Tax (SDLT) where a property was in such poor condition at purchase that it should not have counted as a dwelling. A common difficulty is evidence. Many purchasers do not have a RICS survey or formal valuer’s report and instead only have photographs, videos, contractor notes and records of remedial works.

The key issue is whether the property was genuinely unsuitable for use as a dwelling on the effective date of the transaction. That is a strict test. It is not enough that the property needed repair, refurbishment or modernisation. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold is now relatively high in uninhabitable cases.

The Question

A purchaser bought a residential property that appeared to have significant defects at the time of purchase. The available evidence included pre-completion viewing photographs, a video walkthrough, contractor input, a schedule of works, later invoices and photographs taken after the works were completed. The apparent problems included serious damp, mould, electrical issues and possible structural risks. There was also a tenant issue, which meant some works were carried out over time rather than immediately.

The purchaser wanted to know whether, despite not having a survey or agent’s report, there was still a viable case that the property was not suitable for use as a dwelling at the date of purchase.

Nick’s Explanation

Nick’s view was that the available photographs from the second viewing showed conditions consistent with serious housing hazards. In anonymised terms, he identified the following as potentially relevant HHSRS hazards:

• excessive damp
• toxic mould
• dangerous electrical insulation
• risk of falling masonry affecting part of the roof structure

He also noted possible lower-level issues such as rubbish in the garden and poor decorative condition, although those points were less important.

His overall assessment was positive. In substance, he considered the matter comfortably above the threshold for a viable reclaim based on the evidence he had briefly reviewed.

The Law

SDLT on residential property is charged under the Finance Act 2003. Whether a building counts as a dwelling is important because the higher rates for additional dwellings only apply if the property acquired is a dwelling for SDLT purposes.

The starting point is Schedule 4ZA to the Finance Act 2003, which deals with the higher rates for additional dwellings. A building will generally be treated 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 that use.

In disputes of this kind, the argument is usually that the property was not suitable for use as a dwelling on the effective date of the transaction. The question is one of fact and degree. The tribunal and courts look at the actual physical condition of the property at completion, not simply at the buyer’s intentions or later renovation works.

Housing condition evidence is often analysed by reference to the Housing Health and Safety Rating System (HHSRS), which is used under the Housing Act 2004 to assess residential hazards. HHSRS is not itself the SDLT test, but it can be useful evidence when considering whether defects were so serious that the property was not suitable for use as a dwelling.

Recent case law shows that the threshold is demanding. A property can be in poor condition, require extensive work and still remain suitable for use as a dwelling. In particular, Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 makes clear that uninhabitable or unsuitable-for-use arguments now face a relatively high threshold.

Analysis

The analysis usually proceeds in five steps.

First, identify the condition of the property at the effective date of purchase. Evidence from later works is only useful if it helps prove what the condition was at that earlier date. Pre-completion photographs and videos are often especially important for that reason.

Second, separate serious safety or health defects from ordinary disrepair. Damp staining, dated décor, worn kitchens, old bathrooms and general neglect do not usually make a property unsuitable for use as a dwelling. By contrast, severe mould, dangerous electrics, major water ingress, structural instability or other serious hazards may support the argument.

Third, ask whether the defects prevented normal residential occupation, rather than merely making occupation unattractive or inconvenient. This is where many claims fail. A property can be unpleasant, unhealthy or in poor repair, but still legally and practically capable of being lived in.

Fourth, consider whether the evidence is objective and contemporaneous. A surveyor’s report is helpful but not essential. Photographs, videos, contractor quotations, invoices, possession records, correspondence and before-and-after comparisons can all assist. However, they must show the seriousness of the defects at the relevant date, not just that money was later spent.

Fifth, check whether the hazards reach the required level. In this scenario, the strongest points are the alleged excessive damp, mould, dangerous electrical conditions and risk of falling masonry. Those are the kinds of defects that can support an argument that a property was not suitable for use as a dwelling. If the evidence clearly shows category 1 HHSRS-type hazards existing at completion, that materially strengthens the case.

Even so, the modern authorities mean caution is needed. The court in Mudan indicates that the bar is relatively high. It is not enough to show that substantial remedial works were needed, or that the property was a poor rental investment at the time, or that a tenant complicated access and repairs. The decisive issue remains whether the physical condition of the property on completion meant it was not suitable for use as a dwelling.

On the facts described here, the absence of a survey is a weakness, but not necessarily fatal. If the photographs and video genuinely show severe damp and mould, exposed or unsafe electrics, and a real risk from defective masonry or roof elements, there may still be a strong evidential basis for a reclaim. The mention of HHSRS category 1 hazards is important because that points toward serious threats to health and safety rather than mere refurbishment items.

Outcome

A reclaim may be viable even without a formal survey if the contemporaneous visual evidence and works records show serious hazards existing at purchase. The strongest cases are those where the defects go beyond disrepair and amount to real health and safety risks.

However, readers should be aware that the legal threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Serious damp alone will not always be enough. The evidence must support the conclusion that the property was not suitable for use as a dwelling at completion.

Practical Steps

• Gather all pre-completion evidence, especially dated photographs and videos.
• Organise contractor quotations, schedules of work and invoices in date order.
• Identify which defects existed at completion and which arose later.
• Focus on safety and health issues such as severe mould, dangerous electrics, structural instability, lack of basic sanitation, or major water ingress.
• Do not rely only on the amount spent on renovations. Cost does not prove unsuitability.
• If possible, obtain a retrospective expert opinion from a suitably qualified surveyor who can comment on the likely condition at the purchase date.
• Compare the evidence against the stricter approach in the recent case law, especially Mudan.
• If making a reclaim, explain clearly why the property was not suitable for use as a dwelling on the effective date, with supporting documents cross-referenced to that date.

Conclusion

Yes, a case can still exist without a survey, but only if the evidence shows more than ordinary damp and disrepair. The issue is whether the property was truly unsuitable for use as a dwelling when bought. In light of Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, that is now a relatively demanding test, so the quality and timing of the evidence matter greatly.

Legal References Used

• Finance Act 2003
• Finance Act 2003, Schedule 4ZA
• Housing Act 2004
• Housing Health and Safety Rating System (HHSRS)
• 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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