If you have bought a property that was not fit to live in, you may be owed a Stamp Duty Land Tax (SDLT) refund. The rules around uninhabitable property SDLT are not always straightforward, but once you know how HMRC looks at these cases, you can spot savings that most buyers (and many solicitors) miss.

In this guide, we walk through SDLT refunds on uninhabitable homes, the mortgage side of buying one, and the well known PN Bewley vs HMRC case that opened the door to these claims in the first place.

We explain the difference between a derelict property and an uninhabitable one, look at the SDLT rates and reliefs that can apply, and set out who qualifies and how to apply for an SDLT refund.

We also cover the lending hurdles you are likely to face, plus a few practical ways around them, and share examples of refund claims that have actually paid out. By the end, you should have a clear picture of where you stand and what to do next.

Key Takeaways

• Knowing whether your property counts as derelict or simply uninhabitable is the first step to working out the right SDLT position.
• Non-residential SDLT rates, plus certain reliefs, can apply to properties that are not fit to live in.
• The PN Bewley vs HMRC ruling is still the leading authority and is regularly used to support claims today.

Understanding Uninhabitable Property and SDLT

Properties that need serious work can be a strong investment, but the SDLT treatment depends on the precise condition of the building on the day you complete.

A derelict property is one that has been abandoned, often for years, and is no longer in any meaningful use. An uninhabitable property is in a slightly different category: it might still be repairable, but on the day of purchase it lacks the basics of a home, such as a working kitchen, bathroom, heating system or safe electrics. The distinction matters because an uninhabitable building may fall outside the residential SDLT rules and instead attract non-residential rates, with no 5% additional property surcharge on top.

The leading case in this area is still PN Bewley vs HMRC. The First-tier Tribunal accepted that the bungalow in question was not “suitable for use as a dwelling” at the date of completion, so non-residential SDLT applied and the higher rates surcharge (3% at the time, now 5%) did not. The case made clear that you have to look at the actual state of the building on the day you bought it, not what it could be turned into after works.

Factors that Make a Property Uninhabitable

A home can be treated as unfit for habitation for a number of reasons, including:

• Structural damage that puts anyone inside at risk of harm
• The presence of asbestos in a way that prevents normal occupation
• Plumbing or electrical systems that are unsafe or non-functional
• Missing essentials such as a usable kitchen, bathroom or heating
• Severe pest or vermin infestation
• Inadequate ventilation, particularly in bedrooms
• Rooms that fall below minimum space standards
• The presence of harmful biological hazards

Local authorities and surveyors may also flag a property as uninhabitable on any of these grounds, which can be useful evidence in a refund claim.

Knowing why a property qualifies as uninhabitable is central to getting the SDLT position right. With a clear view of the issues, you can decide with more confidence whether to push for a refund or a non-residential rating from the start.

Derelict vs. Uninhabitable Properties

Derelict and uninhabitable are not the same thing, but for SDLT purposes they are usually treated in a similar way. A derelict building is one that has effectively been left to ruin. An uninhabitable property may still have plenty of fabric left, but it is not in a state where anyone could reasonably move in.

What HMRC really focuses on is whether the property was suitable for use as a dwelling at the moment of completion. If the answer is no, residential SDLT rates and the 5% additional property surcharge should not apply.

Drawing the line correctly between the two categories, and being able to evidence it, is often the difference between paying full residential SDLT and recovering thousands of pounds in overpaid tax.

SDLT Rates and Exemptions for Uninhabitable Properties

Buyers of uninhabitable property may pay SDLT at non-residential rates, depending on the building’s actual condition at completion and how it is used. Non-residential rates are usually lower than residential rates once the surcharges are taken into account, which is where the savings come in. Some specific reliefs may also be in play, particularly where the buyer is a developer planning a full rebuild.

Getting a clear view of the rates and reliefs that apply is the most direct way to reduce your SDLT bill on this kind of purchase, or to recover tax already paid.

Non-Residential SDLT Rates

Non-residential SDLT rates apply where a property is not “suitable for use as a dwelling” on the day of completion, which is the test that picks up many derelict and severely uninhabitable buildings. The current non-residential rates in England and Northern Ireland are 0% on the first £150,000, 2% on the next £100,000, and 5% on anything above £250,000. There is no 5% additional property surcharge and no 2% non-resident surcharge on top, because both of those only attach to residential transactions.

For a buyer who would otherwise have been hit with the higher residential rates plus the 5% surcharge, moving the transaction onto non-residential rates can produce a sizeable saving, often running into tens of thousands of pounds.

Exemptions and Reliefs

A handful of SDLT reliefs can apply on top of, or instead of, the non-residential treatment. The most relevant for derelict buildings tend to be the relief for property traders and house builders acquiring a dwelling as part of a chain or for demolition and rebuild, and (where it fits) charity relief or group relief for corporate buyers.

These reliefs are tightly drawn, so they will not apply to every refurbishment project. As a general rule, if you are an individual buying a single uninhabitable house to do up and either keep or sell on, your SDLT saving will come from the property being non-residential rather than from a named relief. Checking the position with an SDLT specialist before you complete, or before you make a refund claim, is the safest way to avoid leaving money on the table or claiming something HMRC will reject.

The PN Bewley vs HMRC Case: A Precedent for Uninhabitable Property SDLT Claims

The PN Bewley case is still the touchstone for SDLT claims on uninhabitable property. It involved a derelict bungalow that the Tribunal found was not suitable for use as a dwelling at the date of completion, so non-residential SDLT rates applied and the higher rates surcharge did not. The decision is regularly cited in current claims and forms the backbone of how HMRC and advisers approach this area today.

The wider lesson from Bewley is simple but important: SDLT is decided on the building’s condition on the day you buy it, not on what it could become with time and money spent. That principle is what makes refund claims possible, and understanding it puts you in a much stronger position when negotiating with HMRC.

The Case Details

The Bewley case concerned a bungalow in such poor condition that the local authority did not treat it as a dwelling for council tax purposes. The buyers argued that the property should fall outside residential SDLT, and they backed this up with photographic evidence showing no working heating, no boiler, and asbestos throughout the building. There were also significant structural concerns.

The Tribunal agreed that the bungalow could not be lived in as it stood and that the works needed went well beyond ordinary repair or modernisation. As a result, non-residential SDLT rates applied and the higher rates surcharge (3% at the time of the case) did not. This put the focus firmly on the state of the property at completion, which is now the central question in every claim of this kind.

Implications for Future SDLT Claims

The Bewley decision continues to drive how HMRC and tribunals look at uninhabitable property SDLT claims. A property that is not suitable for use as a dwelling on the day of completion is not a “dwelling” for SDLT, which can mean a substantial refund, especially given the 5% additional property surcharge that now applies (up from 3% on 31 October 2024).

Whenever you are weighing up a claim, the question to keep coming back to is the one Bewley settled: was the building actually fit to be lived in on the day of purchase? Where the answer is no, and you can evidence it, the case for a non-residential rating, and a refund of any overpaid SDLT, becomes much stronger.

Applying for a SDLT Refund on Uninhabitable Properties

If you bought an uninhabitable property and paid residential SDLT, you may be able to claim a refund. There are eligibility rules to satisfy and a clear process to follow, and HMRC expects proper evidence. Going in well prepared is the best way to give your claim a fair hearing.

The next two sections set out who can claim and how the process works in practice, so you can judge whether it is worth pursuing in your own case.

Eligibility Criteria

To claim an SDLT refund on the basis that a property was uninhabitable, you generally need to show that:

• You completed the purchase within the last four years (this is the long-stop limit for amending your SDLT position; in some cases the practical window is shorter).
• The property was not suitable for use as a dwelling on the day of completion.
• You can produce evidence of the condition, such as a survey, RICS report, structural engineer’s report, photographs, council tax records and quotes for the works needed.

An SDLT return can normally be amended within 12 months of the filing date, with overpayment relief available beyond that for up to four years from the effective date of the transaction. Knowing which time limit applies to your case is important, because waiting too long is one of the most common reasons claims fail.

Working through the criteria carefully helps you decide whether you have a realistic claim before you spend time and money on it. If your facts line up with the Bewley test, the potential saving can run well into five figures.

Application Process

The steps for an uninhabitable property SDLT refund claim usually look like this:

1. Speak to an SDLT specialist who has handled these claims before, so the position is reviewed properly before anything is filed.
2. Pull together the supporting evidence, which can include the original SDLT return, proof of payment, a building survey or RICS report, photos of the property at completion, contractor quotes for works needed, council tax correspondence and identification documents.
3. Submit the amended SDLT return or overpayment relief claim to HMRC, setting out clearly why the property was not a dwelling at the time of purchase and citing the relevant case law.

A claim that is well evidenced and properly argued has a much better chance of being accepted without a long back and forth with HMRC. If your file is thin, expect questions, delays and possibly a refusal that you then have to appeal.

Mortgages for Uninhabitable Properties

Funding the purchase of an uninhabitable home is often the harder part of the deal. Most high street lenders will not lend on a building without a working kitchen, bathroom or heating, which leaves buyers looking at specialist routes. Below we cover the main hurdles and the realistic options for getting around them.

Knowing the lending landscape in advance helps you plan the purchase properly, set the right budget and avoid finding yourself stuck after exchange.

Mortgage Challenges

Standard residential mortgages usually need the property to be habitable on completion. With a derelict or uninhabitable building, lenders will normally insist on a full survey, may down-value the property, may cap the loan at a low loan-to-value ratio, and will often quote higher rates and fees to reflect the risk. Some will simply decline to lend at all.

The lender’s concern is straightforward: if the borrower cannot complete the works, the bank is left with a property that is hard to sell at the valuation it relied on. That risk drives every part of the lending decision, from the survey requirements to the price.

Potential Solutions

Where a standard mortgage is not available, the most common options are bridging finance, refurbishment finance and specialist heavy-refurb lenders. Bridging loans are short-term, secured against the property, and bridge the gap between purchase and either a sale or a refinance onto a standard mortgage once the works are done. Refurbishment products work in a similar way but are designed around a clear scope of works and exit plan.

Lenders in this space will want to see a credible refurbishment plan, realistic costings, contractor details and a clear exit. Strong personal finances, experience with previous projects and a solid deposit all help with the rate you are offered and how quickly the loan is agreed. Going to the right lender first time, ideally through a specialist broker, saves a lot of wasted applications.

Case Studies: Successful SDLT Refunds for Uninhabitable Properties

Real claims that have been settled with HMRC show how the rules work in practice. They tend to share common features: solid evidence of the property’s condition at completion, a clear comparison with the Bewley facts, and a properly prepared amendment or overpayment relief claim.

Looking at how earlier claims have been argued is one of the best ways to judge whether your own purchase has a realistic chance of producing a refund. Where the facts line up, the savings are real and worth the effort of the claim.

Summary

We have looked at how SDLT works for uninhabitable and derelict property, the impact of the PN Bewley case, the rates and reliefs that can apply, and the practical steps for putting in a refund claim. We have also covered the lending side, which is often the part buyers underestimate.

Stamp duty on a property that was not fit to live in is rarely as simple as the calculator on the gov.uk site suggests. Looking at the position carefully, and getting proper advice where the numbers warrant it, is what turns a costly tax bill into a recoverable one.

Frequently Asked Questions

Do you pay stamp duty if a property is uninhabitable?

Yes, SDLT is still payable, but if the property is genuinely not suitable for use as a dwelling on the day of completion, it should be charged at non-residential rates rather than residential rates plus the 5% additional property surcharge.

What are the criteria for uninhabitable property?

HMRC will usually accept a property as not suitable for use as a dwelling where it lacks the basics of a home, such as a working kitchen, bathroom, running water and heating, and where the works needed go beyond ordinary repair or modernisation.

How do you prove a property is uninhabitable?

Proof tends to be a combination of a building survey or RICS report, structural reports where relevant, photographs taken at or near completion, contractor quotes for the works required, and council tax records showing the property was removed from the council tax list. The stronger the documentary picture, the better.

What is deemed as uninhabitable property?

A property is generally treated as uninhabitable where it lacks the basic essentials of a home (kitchen, bathroom, running water, heating) and has further issues such as serious structural problems, dangerous wiring, unsafe roofs, or asbestos that prevent normal occupation. Where the building can only be made habitable through major works rather than ordinary repair, it is likely to fall outside the residential SDLT rules.

What is the difference between a derelict and an uninhabitable property?

A derelict property has been abandoned and is no longer in use. An uninhabitable property may still be physically intact but is not fit to live in without significant work. For SDLT, both can fall outside the definition of a dwelling if the condition at completion is poor enough.