Guidance on Mixed Transactions for Land and Buildings Transaction Tax (LBTT)

LBTT mixed transactions and when a purchase is treated as non-residential

A property purchase is usually treated as a mixed transaction for LBTT if it includes both residential and genuine non-residential property at the effective date. In that case, non-residential LBTT rates normally apply to the whole deal, but the Additional Dwelling Supplement may still be due on the residential part if the conditions are met.

• A clear mixed-use example is a shop, pub or other business premises with a flat above it.
• For houses with extra land, the key question is whether the land is still part of the dwelling’s garden or grounds, or is genuinely in commercial use.
• Commercial use needs real evidence, such as business accounts, registrations, leases, rates treatment, subsidy records, or proof of regular and substantive trading activity.
• Use at the effective date is the main test, but regular historic use can still help show the true nature of the land or building.
• Normal home working will not usually create mixed use, but a separately adapted and divided business area may do so.
• Even where non-residential LBTT rates apply, ADS can still apply to an additional dwelling if the residential element is worth at least £40,000 on a just and reasonable apportionment.

Scroll down for the full analysis.

LBTT mixed transactions: when a purchase is treated as non-residential

This page explains how Land and Buildings Transaction Tax applies when a transaction includes both residential and non-residential property. This matters because a mixed transaction is generally taxed using non-residential LBTT rates and bands, but the Additional Dwelling Supplement may still apply to the residential part.

What this rule is about

LBTT divides property transactions into residential and non-residential transactions. Some purchases do not fit neatly into one category. A common example is a shop with a flat above it. Another is a house bought with land that may or may not be part of its garden and grounds.

The key issue is whether, at the effective date of the transaction, the property includes a genuine non-residential element. If it does, the transaction is treated as mixed, and the LBTT calculation follows the non-residential rate structure.

This is often straightforward where there is an obvious commercial unit. It is much less straightforward where the question is whether land attached to a dwelling is still part of the dwelling’s grounds, or has crossed the line into commercial land.

What the official source says

Revenue Scotland’s guidance says that a transaction containing both residential and non-residential interests is treated as a non-residential transaction. The example given is a shop with a flat above it.

The guidance also says that commercial use must be evidenced. Relevant evidence can include VAT registration, non-domestic rates status, membership of commercial bodies, licences or registrations, and business accounts. It also lists wider indicators such as formal registrations, agricultural or crofting payments, legal constraints on use, and whether activities are carried on as a genuine business with a reasonable prospect of profit.

A central point is timing. The use of the property at the effective date overrides past use and intended future use when deciding whether the property is residential. However, Revenue Scotland also says that habitual and regular use can still be relevant in understanding the true relationship of the land to the building at that date. So the analysis is not limited to a snapshot of one day.

For land forming part of the garden or grounds of a dwelling, the guidance says the residential rates apply. It refers to section 59(1)(b), under which residential property includes land forming part of the garden or grounds of a building suitable for use as a dwelling, including buildings or structures on that land. There is no statutory size limit. Whether land is garden or grounds is a question of fact.

Where there is doubt about whether land is garden or grounds, commercial use becomes important. Revenue Scotland says the land would be expected to have been actively and substantively exploited on a regular basis if it is to count as commercial. Genuine farmland is given as an example. By contrast, land used only for leisure, including grazing or equestrian activity that does not amount to commercial operations, is likely to remain part of the garden or grounds.

The guidance lists examples of land that may be non-residential if supported by evidence, including commercial woodland, commercial farming or horticulture, commercial stables or paddocks, commercial grazing land, other commercial areas, and a registered croft.

It also says that a lease to a third party for exclusive occupation may indicate non-residential use, but occasional permission for others to use the land is unlikely by itself to stop the land being garden or grounds. The true nature, start date and duration of any lease or licence must be established.

As to layout, Revenue Scotland says domestic outbuildings, leisure areas, orchards, and leisure stables and paddocks all point towards garden or grounds and therefore residential treatment. Proximity to the house is relevant but not decisive.

The guidance deals separately with certain buildings used for institutional or trading accommodation, such as hotels, inns, hospitals, student halls, care homes and prisons. If a building is in use for one of those purposes, its potential suitability as a dwelling is ignored and it is treated as non-residential.

It also addresses home offices. A room used for office work within an ordinary home will usually still be treated as part of the dwelling. But if part of the building has been divided off and adapted as separate business premises, such as a surgery, that may point towards mixed use.

Finally, the guidance says that in a mixed transaction the Additional Dwelling Supplement is attributable only to the residential part. The residential consideration must be identified using a just and reasonable apportionment. If the consideration attributable to an additional dwelling is at least £40,000, ADS applies at 8% and is added to the LBTT already calculated at non-residential rates and bands.

What this means in practice

The practical consequence is that one non-residential element can change the rate structure for the whole transaction. That can reduce LBTT compared with full residential treatment, but it does not necessarily remove ADS if an additional dwelling is included.

The main practical disputes tend to arise in four areas.

First, land bought with a house. Large plots, paddocks, woodland, grazing land and outbuildings are often described as non-residential. But that is not enough. The real question is whether the land is still part of the garden or grounds of the dwelling, or whether it is genuinely being used commercially.

Second, holiday and visitor accommodation. A bed and breakfast or guest house may be residential, mixed or non-residential depending on the facts. By contrast, Revenue Scotland says that a property used in a furnished holiday letting business will still be residential if it could in most cases be used as a single dwelling without planning permission, even if it is assessed to non-domestic rates.

Third, mixed buildings. A pub with a flat above is the obvious example. The transaction is mixed, so LBTT uses non-residential rates, but ADS may still be charged on the flat if the buyer is acquiring an additional dwelling and the apportioned consideration for that dwelling reaches the statutory threshold mentioned in the guidance.

Fourth, business use within a home. A normal home office does not usually create mixed use. There needs to be something more, such as a separate area adapted as business premises.

How to analyse it

A sensible way to analyse a possible mixed transaction is to work through the following questions.

• What exactly is being bought? Identify each building, area of land, structure and any separate rights or interests.
• What is the use at the effective date? This is the starting point.
• Is any part clearly non-residential in its current use? For example, a trading unit, a shop, a pub, a hotel, or land in genuine commercial agricultural use.
• If the issue is land attached to a dwelling, is it really part of the garden or grounds? Consider layout, function, relationship to the house, and whether the use is domestic or leisure rather than commercial.
• If commercial use is claimed, what evidence exists? Look for business accounts, registrations, rates treatment, subsidy or rural payment records, contracts, leases, and proof of regular commercial exploitation.
• Is there a lease or licence to a third party? If so, is it genuine, exclusive, current, and commercially meaningful?
• Is the commercial activity regular and substantive, or only occasional or incidental?
• For buildings with both living and business areas, is the business use simply part of normal home working, or has there been a physical and functional division into separate business premises?
• If the transaction is mixed, is any part of the residential element an additional dwelling for ADS purposes? If yes, what is the just and reasonable apportionment of consideration to that dwelling?

In short, labels matter less than evidence. Calling land agricultural, commercial or mixed use does not determine the tax treatment. The factual position at the effective date, viewed in context, is what matters.

Example

Suppose a buyer purchases a house with several acres of adjoining land. The seller says the land is non-residential because horses have grazed there and a neighbour sometimes uses one field. There is no agricultural registration, no business accounts, no rural payments, and no evidence of a commercial grazing agreement. The paddocks are laid out as part of the house setting and are used for private leisure riding.

On Revenue Scotland’s approach, that would tend to point towards the land remaining part of the garden or grounds of the dwelling, so the transaction would remain residential rather than mixed.

Now change the facts. Assume one section of the land is operated as genuine commercial horticultural land, with regular trading activity, business records, and clear evidence of substantive commercial exploitation in place at the effective date. That would be much more likely to support mixed treatment, with the transaction taxed at non-residential rates and bands.

Why this can be difficult in practice

The hardest cases are not the obvious shop-and-flat transactions. They are the cases around houses with extra land.

The legislation includes garden and grounds within residential property, but there is no statutory size limit. That means large areas can still be residential if they are truly part of the dwelling’s grounds. Equally, a relatively small area may be non-residential if it is genuinely in commercial use.

The guidance also shows a tension that often appears in practice. It says the use at the effective date overrides past and future use, but it also says historic habitual use can be considered to identify the true relationship of the land to the building. That means the analysis is factual and evaluative, not mechanical.

Rates treatment, VAT registration, or local authority classification can be relevant evidence, but they are not necessarily conclusive by themselves. The same is true of leases and licences. A document that looks commercial on paper may carry little weight if the actual use is informal, occasional or not genuinely business-like.

Holiday accommodation can also be counterintuitive. A property run as a furnished holiday letting business may still be residential for LBTT purposes if it could ordinarily be used as a single dwelling without permission. So business activity alone does not always create mixed or non-residential treatment.

Finally, ADS creates an extra layer. A mixed transaction is taxed at non-residential LBTT rates, but that does not automatically eliminate ADS. If there is a residential element that is an additional dwelling, the residential part must still be identified and tested separately on a just and reasonable apportionment.

Key takeaways

• A transaction that includes both residential and non-residential property is generally taxed at non-residential LBTT rates and bands.
• The main factual question is often whether land is genuinely commercial, or is still part of the garden or grounds of a dwelling.
• In a mixed transaction, ADS may still apply to the residential part if the statutory conditions are met and the residential consideration is apportioned on a just and reasonable basis.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Guidance on Mixed Transactions for Land and Buildings Transaction Tax (LBTT)

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