Land Transaction Tax: Rules on Construction Works as Consideration Explained

When building works count as chargeable consideration for LTT

For Land Transaction Tax in Wales, building, improvement or repair works can count as part of the price paid for land, not just any cash payment. The works are ignored only if they are carried out after the effective date, on the land being bought or other land held by the buyer or a connected person, and the seller is not required to carry them out. If any of those conditions are not met, the open market value of the works, including VAT, is added to the chargeable consideration.

• Works promised by the buyer may be taxable consideration if they form part of the bargain for the land.
• The exception applies only where all statutory conditions are met on timing, location of the works, and who must carry them out.
• Works done after the effective date on the acquired land may be ignored if the seller or a connected person is not contractually required to do them.
• If the buyer must build or improve something for the seller on the seller’s land, the value of that work will usually be added to the taxable consideration.
• Where the exception does not apply, the value used is the open market value of the works, and this includes VAT.
• The effective date can be earlier than completion if there is substantial performance, so contract timing and wording are important.

Scroll down for the full analysis.

When building works count as chargeable consideration for LTT

This page explains when construction, improvement or repair works form part of the consideration for a land transaction under Land Transaction Tax in Wales. The point matters because a buyer may be giving more than cash for the land. If the works count as consideration, their open market value is added to the amount on which LTT is charged.

What this rule is about

In some land deals, the buyer does not just pay money. The buyer may also agree to build something, improve land, or carry out repairs. The legal question is whether those works are part of the price for the land.

Schedule 4 paragraph 11 sets out when such works are ignored for LTT purposes, and when they must instead be treated as chargeable consideration. The rule is aimed at the practical reality of the bargain. If the buyer is effectively paying for the land by doing works, those works may increase the taxable consideration.

What the official source says

Works carried out by the buyer are not chargeable consideration if all of the following conditions are met:

• the works are carried out after the effective date of the transaction;
• the works are carried out on the land being acquired, or on other land held by the buyer or a person connected with the buyer; and
• it is not a condition of the transaction that the seller, or a person connected with the seller, carries out the works.

If those conditions are not all satisfied, the value of the works is chargeable consideration on an open market basis. For LTT, that open market value includes any VAT that would be payable on the amount of the works.

The source also deals with contracts that are notifiable both on substantial performance and again on completion. In that situation, if the requirement that the works are carried out after the effective date is satisfied by reference to the effective date at substantial performance, it is treated as satisfied again on completion, even if the works started or were completed between substantial performance and completion.

The source notes that special rules apply for arrangements involving public or educational bodies, but does not set those rules out in the material provided here.

What this means in practice

The starting point is to ask what the buyer has agreed to give in return for the land. If the buyer is required to carry out works as part of the deal, those works may be part of the taxable consideration even though no cash changes hands for them directly.

However, the legislation carves out an important exception. Works done by the buyer after the effective date are ignored if they are done on land the buyer is acquiring, or already holds, and the seller is not contractually required to carry them out.

That means post-completion development obligations do not automatically increase LTT. Much depends on where the works are done, when they are done, and who is obliged to do them.

A common contrast is:

• if the buyer must build something for the seller on the seller’s land, the value of that work is likely to be chargeable consideration;
• if the buyer must build something after completion on the land being bought, the value of that work may be ignored under this rule.

Where the works do count, the relevant figure is not simply the buyer’s internal cost. The source says the value is taken on an open market basis, and for LTT that includes VAT that would be payable on the works.

How to analyse it

A sensible way to analyse the issue is to work through these questions in order.

• What exactly has the buyer promised to do? Identify any obligation to construct, improve, repair, or otherwise enhance land.
• Is that obligation part of the consideration for the land transaction? Look at the contract and the commercial bargain as a whole.
• When are the works carried out? The exemption only applies if they are carried out after the effective date.
• What is the effective date? This may be completion, but it can be earlier if the contract is substantially performed.
• Where are the works carried out? The exemption only applies if they are on the acquired land, or on other land held by the buyer or a connected person.
• Who is required to carry out the works? If it is a condition of the transaction that the seller or a connected person carries them out, the exemption is not available.
• If the exemption fails, what is the open market value of the works, including VAT?

The substantial performance point is especially important. If the buyer enters the land early under a licence and that amounts to substantial performance, the effective date may move forward. Works started after that earlier effective date can still satisfy the timing condition.

Example

Suppose a developer agrees to buy land for £5 million from a local authority. As part of the deal, the developer must build a leisure centre after completion on part of the land being acquired. The seller is not required to carry out the works.

On the source material, the chargeable consideration remains £5 million. Although the buyer has a building obligation, the works are carried out after the effective date, on land acquired by the buyer, and they are not to be carried out by the seller.

By contrast, if the buyer agrees to buy land for £1 million and also to build a workshop for the seller on separate land still owned by the seller, the value of those works is added to the chargeable consideration. If the workshop has an open market value of £750,000, the total chargeable consideration is £1.75 million.

Why this can be difficult in practice

The rule looks simple, but several points can be fact-sensitive.

First, identifying the effective date is not always straightforward. If there is substantial performance before completion, the timing analysis changes. A buyer may think works began before completion and therefore fail the test, but if substantial performance happened earlier, the works may still be after the effective date.

Second, the location of the works matters. Works on the buyer’s land can be ignored if the other conditions are met. Works on the seller’s land cannot rely on that part of the rule.

Third, the contract wording is critical where the seller is involved in the works. If it is a condition of the transaction that the seller or a connected person carries out the works, the relieving condition is not met. The source’s fourth example shows how this affects not only the amount of tax but also whether early payment amounts to substantial performance, because the works are treated as part of the total consideration.

Fourth, valuation may be disputed. The source requires an open market value and says VAT must be included. That can differ from the parties’ own accounting cost or budget.

Finally, the source mentions special rules for public or educational bodies. Since those rules are not included in the material provided, it would be unsafe to assume the general rule always applies in the same way in those cases.

Key takeaways

• Buyer-funded works are not automatically ignored for LTT; they may be part of the chargeable consideration for the land.
• Works can be left out only if the statutory conditions are met, including timing, location, and the absence of a requirement for the seller to carry them out.
• If the conditions are not met, the open market value of the works, including VAT, is added to the taxable consideration.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Land Transaction Tax: Rules on Construction Works as Consideration Explained

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