Property option agreements sit at the intersection of contract law and property law and can take many forms — a call option (the buyer has the right to purchase), a put option (the seller has the right to require the buyer to purchase), a pre-emption right (the seller cannot sell to a third party without first offering to the option holder), or a conditional contract (the transaction completes automatically on the occurrence of a specified condition, such as planning permission). Each structure has different legal and tax implications. For a landlord granting a developer option over surplus land, the key issues are: the option price; the trigger event (what planning permission must be obtained); the option period; overage rights if the developer subsequently sells on at a profit; the landowner's ability to participate in the planning process; and stamp duty land tax and capital gains tax on exercise of the option. A poorly drafted option can leave the landowner with no effective control over the planning process, no overage protection, and a binding contract at a price that no longer reflects the planning-enhanced value. Specialist property solicitor advice is essential.
Types of Property Option Agreement — Call Option, Put Option, and Conditional Contract
The principal types of option agreement used in property transactions are: (1) Call option: gives the option holder (typically the developer or buyer) the right to purchase the property by serving a written notice of exercise within the option period. The landowner is bound to sell if the option is exercised; the option holder is not obliged to buy (they can allow the option to lapse if planning is not obtained or the development is not viable). The call option is the most common structure for developer land acquisitions. The option holder typically pays an option fee (a non-refundable payment for the right to hold the option) — often 1%–5% of the expected purchase price, or a fixed sum. The option price may be: (a) a fixed price agreed at the outset; (b) a formula price tied to planning permission (e.g. 20% of the open market value with planning, subject to a floor); (c) determined by a RICS valuation at the time of exercise; (2) Put option: gives the landowner the right to require the buyer to purchase the property. Less common in development contexts — more often used in structured finance transactions or as a back-to-back arrangement alongside a call option (a put-and-call option agreement creates a bilateral obligation once the option is exercised); (3) Conditional contract: a contract for the sale of land that is unconditional except for the satisfaction of a specified condition (typically planning permission being granted on acceptable terms). Once the condition is satisfied, both parties are automatically bound to complete — unlike a call option where the buyer retains the right to walk away. A conditional contract gives the landowner greater certainty of sale but gives the developer less flexibility. In practice, the line between a conditional contract and a call option can be blurred; (4) Right of pre-emption: a right of first refusal — the landowner cannot sell to a third party without first offering to sell to the pre-emption holder on the same terms. A pre-emption right does not bind the landowner to sell (they can choose not to sell at all), but if they decide to sell, they must offer to the right-holder first.
- Call option: developer has the right to purchase; landowner is bound to sell if the option is exercised; developer is not obliged to buy; most common structure for development land deals
- Option fee: a non-refundable payment by the developer for the right to hold the option; commonly 1%–5% of the expected purchase price or a fixed sum; SDLT is payable on option fee payments above the SDLT threshold
- Formula price: the option price may be set by a formula (e.g. percentage of GDV less development costs; or a RICS valuation at exercise) rather than a fixed price; protects the landowner against inflation during a long option period
- Put option: gives the landowner the right to require the buyer to purchase; less common; often paired with a call option (put-and-call) to create a bilateral obligation
- Conditional contract: both parties are automatically bound to complete once the condition (e.g. planning permission) is satisfied; gives the landowner more certainty but less flexibility than a call option from the developer's perspective
Key Commercial Terms — Option Period, Trigger Event, and Overage
The commercial terms of a developer option agreement are critical for the landowner. Key issues to negotiate: (1) Option period: the length of time the developer has to exercise the option. Development options are typically for 2–5 years (allowing time to prepare and submit a planning application and receive a decision), with extension rights if the planning application is delayed or appealed. A longer option period ties up the land for an extended period — the landowner should insist on a longstop date after which the option automatically lapses if the trigger event has not occurred; (2) Trigger event (planning condition): the option can only be exercised after planning permission is obtained for the specified development. The trigger event should be carefully defined: what type of planning permission (full permission; outline permission; permission in principle); what minimum quantum of development (minimum number of units; minimum floor area); what conditions are acceptable (the developer should not be able to exercise on a planning permission with onerous conditions that make the development unviable — the landowner should include a 'satisfactory planning' definition); and whether the developer must actually implement the permission before the option lapses; (3) Planning obligation: should the developer be obliged to use reasonable endeavours (or best endeavours) to obtain planning permission? A pure option with no planning obligation allows the developer to sit on the option without pursuing planning — the landowner should insist on an obligation to prepare and submit an application within a specified period; (4) Overage: even if a fixed price option is agreed, the landowner can negotiate an overage clause providing for additional payments if the developer obtains a more valuable planning permission, implements more units than specified, or sells on at a profit within a specified period after exercise. Overage is a key way for landowners to participate in planning upside; (5) Landowner's planning participation: the option agreement should specify whether the landowner has the right to be consulted on or approve the planning application; some agreements give the landowner the right to make representations but not a right of approval.
- Option period: typically 2–5 years for development land; insist on a longstop date after which the option automatically lapses; extension rights for planning delays or appeal periods are commercially reasonable
- Trigger event: define precisely what planning permission triggers the right to exercise; include a 'satisfactory planning' definition excluding onerous conditions; specify the minimum development quantum
- Planning obligation: require the developer to use reasonable endeavours to prepare and submit a planning application within a specified period; a pure option with no planning obligation can leave land tied up with no progress
- Overage: negotiate an overage clause providing for additional payments if the developer obtains better planning, implements more than the minimum scheme, or sells on at a profit; overage is a critical landowner protection
- Landowner's participation: specify the landowner's right to be consulted on the planning application; consider whether the landowner can require the developer to appeal a planning refusal at the developer's cost
Registration, SDLT, and Capital Gains Tax on Property Options
Property option agreements have significant registration, stamp duty land tax, and capital gains tax implications that landlords and landowners must understand before entering into them. Registration: an option agreement is an interest in land and should be registered as a notice on the title of the landowner's property at the Land Registry (in England and Wales). Registration as a notice protects the option holder against a subsequent sale of the land to a third party — an unregistered option may not bind a later purchaser of the land. A call option gives the option holder an equitable interest in the land from the date of the agreement; registration perfects that interest against third parties. The landowner's solicitor must ensure that the form of the option agreement is consistent with registration (the Land Registry has specific requirements for the form and content of documents submitted for registration). SDLT: there are two SDLT events on a property option: (i) on grant of the option — SDLT is payable on the option fee (the consideration paid by the developer for the right to hold the option) if it exceeds the SDLT threshold for land transactions; (ii) on exercise of the option — SDLT is payable on the full purchase price for the land (the option fee is deducted from the chargeable consideration if it was subject to SDLT on grant). Capital gains tax: the grant of an option is a disposal of an asset for CGT purposes; CGT is payable by the landowner on any gain from the option fee received. On exercise of the option, the purchase price is included in the computation of the landowner's gain on the disposal of the land. Where a landowner grants a call option and the option lapses without exercise, no CGT disposal of the land occurs — but the option fee (if not returned) is treated as a capital receipt in the year it lapses. Scotland: options over Scottish land should be registered in the Sasine Register or Land Register of Scotland; LBTT applies to Scottish land transactions.
- Registration as notice: register the option agreement as a notice at the Land Registry; an unregistered option may not bind a subsequent purchaser of the land; the option holder has an equitable interest in the land from the date of the agreement
- SDLT on grant: SDLT is payable on the option fee (if above threshold) at the date of grant; the option fee SDLT is deducted from the SDLT payable on exercise (to avoid double counting)
- SDLT on exercise: SDLT is payable on the full purchase price of the land at the date of exercise; the option fee previously taxed is deducted from the chargeable consideration
- CGT on grant: the option fee is a capital receipt for the landowner; CGT is payable in the tax year the option is granted; the grant of an option is a disposal of a wasting asset (if the option period is under 50 years — most development options are)
- Scotland: Land Register of Scotland registration for Scottish options; Land and Buildings Transaction Tax (LBTT) applies at the date of grant and again on exercise
Key Protections for Landowners Granting Developer Options
A landowner who grants an option to a developer is in a potentially weak position if the agreement is not carefully drafted. Key protections to insist upon: (i) Longstop date: the option must lapse after a maximum period regardless of what the developer has done — prevents the land being tied up indefinitely; (ii) Planning obligation: the developer must be required to use reasonable (or best) endeavours to submit and pursue a planning application within a specified period — without this obligation, the developer can park the option and prevent the landowner selling elsewhere without making any planning progress; (iii) Satisfactory planning condition: the trigger event should define what counts as 'satisfactory' planning permission (acceptable s.106 obligations; no unacceptable noise/hours conditions; minimum viable quantum) — prevents the developer exercising on a permission that is commercially unattractive; (iv) Overage: as discussed above, overage protects the landowner against planning uplift that was not anticipated at the time the option was agreed; overage charges should continue for 5–10 years after exercise; (v) Development programme: require the developer to implement the development within a specified period after exercise — prevents the developer banking the site without development; (vi) Legal costs: the option fee should cover the landowner's reasonable legal costs of reviewing and negotiating the option agreement; (vii) RICS valuation: where the option price is set by a formula tied to market value, insist on a RICS Red Book valuation by an independent valuer at the time of exercise — rather than the developer's own valuation; (viii) Right to approve planning application: at minimum, require to be consulted on the planning application and to make representations; (ix) Restrictive covenant: consider whether the option agreement should include a restrictive covenant on the developer (e.g. not to subdivide the land; not to sell on without the landowner's consent); (x) Break right: include a landowner's right to terminate the option if the developer becomes insolvent or fails to meet key milestones.
- Longstop date: the single most important protection — the option must lapse automatically after a defined maximum period regardless of planning progress
- Planning obligation: require the developer to submit a planning application within a specified period and to use reasonable/best endeavours to obtain permission; without this, the developer can park the option indefinitely
- RICS valuation: for formula-priced options, require an independent RICS Red Book valuation at the time of exercise to protect against undervaluation by the developer
- Overage: negotiate a detailed overage provision lasting 5–10 years post-exercise; ensures the landowner participates in any planning uplift beyond the option price
- Legal costs: require the developer to pay the landowner's reasonable solicitor costs of negotiating the option; experienced property solicitor advice is essential — the developer's solicitors draft the agreement in the developer's interest
Frequently asked questions
What is a property option agreement?+
A property option agreement gives the holder the right (but not the obligation) to purchase land or property within a specified period at a specified or formula price. Call options are the most common type — the developer (option holder) can purchase the land if planning permission is obtained; the landowner must sell if the option is exercised. The landowner receives an option fee in return for granting the right.
Should a property option agreement be registered at the Land Registry?+
Yes — a call option agreement gives the holder an equitable interest in the land and should be registered as a notice on the title at the Land Registry. An unregistered option may not bind a subsequent purchaser of the land. Registration protects the developer's right against third parties and prevents the landowner selling the land to someone else during the option period.
Is SDLT payable on a property option agreement?+
Yes — SDLT is payable on both the option fee (on grant of the option, if above the SDLT threshold) and the full purchase price (on exercise). The option fee previously taxed is deducted from the chargeable consideration on exercise to avoid double counting. In Scotland, Land and Buildings Transaction Tax (LBTT) applies.
What is an overage clause in a property option?+
An overage clause in a property option agreement provides for additional payments to the landowner if the developer later realises more value from the land than was reflected in the option price — for example, if a more valuable planning permission is obtained, more units are built than the minimum, or the developer sells on at a profit within a specified period. Overage protects the landowner from selling too cheaply.
What is the difference between a call option and a conditional contract?+
A call option gives the buyer the right (but not the obligation) to purchase — they can allow the option to lapse if the development is not viable. A conditional contract automatically binds both parties to complete once the specified condition (e.g. planning permission) is satisfied — the buyer cannot walk away after the condition is met. A conditional contract gives the landowner greater certainty but gives the developer less flexibility.