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, to give you 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 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.
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.
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.
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.
| Property Value Band | Non-Residential SDLT Rate |
|---|---|
| Up to £150,000 | 0% |
| £150,001 to £250,000 | 2% |
| Over £250,000 | 5% |
There is no 5% additional property surcharge and no 2% non-resident surcharge on top of these figures, because both of those only apply to residential transactions.
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 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.
The PN Bewley vs HMRC Case: A Precedent
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 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.
Applying for an 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.
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 (the long-stop limit for amending your SDLT position).
- 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.
Application Process
- Speak to an SDLT specialist who has handled these claims before, so the position is reviewed properly before anything is filed.
- 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, and council tax correspondence.
- 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.
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.
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.
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.
Summary
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.
What is deemed as uninhabitable property?
A property is generally treated as uninhabitable where it lacks the basic essentials of a home and has further issues such as serious structural problems, dangerous wiring, unsafe roofs, or asbestos that prevent normal occupation.
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.
