What is the difference between an option agreement and a promotion agreement?

Under an option, the developer secures the right to buy the land itself, usually at a discount to market value once planning is granted. Under a promotion agreement, a promoter takes the land through planning and then sells it on the open market, taking a share of the proceeds rather than buying it.

Who pays for the planning application under these agreements?

In both structures the developer or promoter funds and carries the planning risk, paying for the consultants and the application. If permission is refused they generally lose that spend, while the landowner risks committed time rather than cash.

How is the landowner paid under a promotion agreement?

The land is sold on the open market once consented, and the landowner receives the sale proceeds less the promoter's fee and agreed costs. The fee is typically a percentage of the price achieved, so the promoter and landowner share an incentive to maximise value.

When should a developer use an option rather than a promotion agreement?

A developer that intends to build out the scheme usually prefers an option or a conditional purchase, because it secures a specific site and lets the developer capture the development profit. A promotion agreement suits a land promoter whose business is unlocking planning value and selling the land on, not construction.

Option agreements vs promotion agreements

Threshold Guides · 9 min read · England & Wales

Buying land outright is the slowest and most capital-hungry way to secure a site, and it puts the entire planning risk on your balance sheet from day one. Two agreements let developers and land promoters control land without owning it: the option agreement and the promotion agreement. They can look similar from the outside yet align the parties in opposite ways, so choosing the wrong one costs far more than the legal fees to draft it.

Why control land without buying it

Securing land under an agreement rather than a purchase does three things: it defers the bulk of the payment until planning is resolved, it ties up the site so a competitor cannot take it while you invest in an application, and it lets the party best able to carry planning risk carry it. The landowner keeps title, and often continues farming or otherwise using the land, until the deal completes. In return they accept a period of uncertainty and, usually, that someone else's decisions will shape what their land becomes.

How an option agreement works

Under an option agreement the landowner grants the developer the right, but not the obligation, to buy the land within an agreed option period, often several years and sometimes extendable while planning is pursued. The developer pays an option fee for that right, which may be modest or substantial and is frequently non-refundable. During the option period the developer promotes the site through planning at its own cost. If permission is granted and the developer chooses to proceed, it exercises the option and buys.

The purchase price is set by the agreement, commonly as a percentage of open market value with the benefit of the planning permission (a discount to market, typically in the region of 10-20% off, though it varies widely), or occasionally as a fixed figure. Because the developer buys at a discount to market value, its interest and the landowner's are partly opposed: the developer benefits from a lower agreed value, the landowner from a higher one.

How a promotion agreement works

A promotion agreement works the other way round. A land promoter agrees to take the site through planning at its own cost and risk, and then, once permission is secured, the land is sold on the open market, usually to a housebuilder. The promoter does not buy the land. Instead it is paid a promotion fee out of the sale proceeds, typically a percentage of the price achieved (commonly around 15-25%, often after the promoter's planning and marketing costs are deducted first).

The effect is that promoter and landowner want the same thing: the highest possible sale price, because both are paid out of it. The promoter's return rises and falls with the value it unlocks, which aligns its incentives with the landowner far more closely than an option's discount does.

Who bears the planning risk

In both structures the developer or promoter funds and carries the planning risk. They pay for the consultants, the technical work and the application, and if permission is refused they generally lose that spend. The landowner risks time and opportunity rather than cash: their land is committed for years and they may recover little if planning fails, but they have not funded the application. The real difference between the two agreements is not who takes planning risk, it is what happens after planning succeeds, and how the resulting value is split.

How the landowner gets paid

Under an option: an option fee up front, then a purchase price on exercise, set at a discount to the open market value of the consented land. The developer captures that discount as part of its development margin.
Under a promotion agreement: the bulk of the open-market sale proceeds, less the promoter's fee and agreed costs. The landowner is exposed to the actual price the market pays, upside and downside.

Illustrative comparison on a site with a notional consented value

Option at 90% of market value: the landowner receives 90% of the consented value; the developer keeps the 10% discount plus its profit on building the scheme out.

Promotion at a 20% fee: the promoter takes 20% of the sale proceeds (often after costs), the landowner keeps the remaining 80%, and the land goes to the highest bidder.

The figures are illustrative; real deals turn on the exact discount, fee, cost deductions and any minimum price.

Which suits a developer, which suits a promoter

The choice follows who you are and what you want from the site.

A developer that intends to build out the scheme usually wants an option, or a conditional purchase. It secures a specific site, fixes the acquisition terms, and lets the developer capture the development profit by building rather than selling the consented land on.
A land promoter, whose business is planning and not construction, uses a promotion agreement. It monetises the planning uplift through an open-market sale and takes a share, without ever needing to fund the build.
A landowner weighing offers should notice the incentive alignment: a promotion agreement pays a partner to push value up, whereas an option counterparty benefits from a lower agreed price. That does not make options bad, they offer certainty and a committed buyer, but it explains why the two are negotiated so differently.

Hybrid structures exist too, including options with overage, conditional contracts and combined promotion-and-option deals, and the right answer often blends them. Whichever route you take, the value evidence underneath it is the same: a defensible view of what the consented scheme is worth, built from local sold prices rather than hope. Read our guides to development viability and the residual land value calculation, see live per-square-foot values on the data pages, and use Threshold to appraise a site before you commit to a structure.

Frequently asked questions

What is the difference between an option agreement and a promotion agreement?: Under an option, the developer secures the right to buy the land itself, usually at a discount to market value once planning is granted. Under a promotion agreement, a promoter takes the land through planning and then sells it on the open market, taking a share of the proceeds rather than buying it.
Who pays for the planning application under these agreements?: In both structures the developer or promoter funds and carries the planning risk, paying for the consultants and the application. If permission is refused they generally lose that spend, while the landowner risks committed time rather than cash.
How is the landowner paid under a promotion agreement?: The land is sold on the open market once consented, and the landowner receives the sale proceeds less the promoter's fee and agreed costs. The fee is typically a percentage of the price achieved, so the promoter and landowner share an incentive to maximise value.
When should a developer use an option rather than a promotion agreement?: A developer that intends to build out the scheme usually prefers an option or a conditional purchase, because it secures a specific site and lets the developer capture the development profit. A promotion agreement suits a land promoter whose business is unlocking planning value and selling the land on, not construction.

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Data referenced in Threshold is displayed under the Open Government Licence (HM Land Registry Price Paid Data, EPC Register, ONS, UK HPI). All figures produced by Threshold are statistical estimates for site appraisal, not RICS valuations.