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Selling land for residential development usually means choosing between an unconditional sale, a conditional contract, an option agreement or a promotion agreement. Each route balances certainty, control and value in a different way. The right one depends on the land, its planning position and what the landowner wants to achieve.
At Hattelle Homes we speak with landowners who have a field on the edge of a village, a former yard, a redundant building or a larger site identified in a local plan. The questions are usually the same. What is the land worth? How long will it take? Who carries the cost of planning? What happens if permission is refused? This guide explains the main routes and the questions worth asking before committing to any of them.
It is a general guide only. Every landowner should take independent legal, tax and valuation advice before agreeing terms.
Why does planning matter so much?
Land with planning permission for housing is usually worth many times more than the same land without it. Most of the value in a residential site is created by securing a suitable planning permission.
That creates the central question for a landowner. Do you sell now before planning and let the buyer take the planning risk and reward? Or do you wait, share in the planning uplift and accept that the process takes time and may not succeed?
A site's planning prospects depend on factors such as:
- Whether the land is allocated for housing in the adopted local plan
- Whether the land has been put forward in the council's call for sites
- Its location relative to existing settlements, services and transport
- Green Belt, flood risk, landscape, heritage and ecology constraints
- Access to the public highway
- The council's housing land supply position
What are the main routes to selling land for development?
Unconditional sale
The land is sold now, as it is, for an agreed price. The landowner receives the money on completion and has no further involvement.
- Advantages: certainty, speed and no exposure to planning risk
- Disadvantages: the price reflects the planning risk the buyer is taking, so it is usually lower than the value with planning
An unconditional sale is often combined with an overage agreement so the landowner shares in any future planning uplift.
Conditional contract
Contracts are exchanged now, but completion only happens once a condition is met. The condition is usually the grant of a satisfactory planning permission, sometimes with other conditions such as vacant possession or access rights.
- Advantages: the buyer is committed from exchange and usually funds the planning application
- Disadvantages: the landowner is tied in until the condition is met or a long stop date passes. The definition of a "satisfactory" permission matters a great deal
The price may be fixed at exchange or calculated by an agreed formula once planning is granted.
Option agreement
A developer pays the landowner an option fee for the exclusive right to buy the land within an agreed period. The developer promotes the land through planning at its own cost. If planning is secured, the developer can exercise the option and buy the land, usually at market value less an agreed discount and allowable costs.
- Advantages: the landowner receives a fee at the start, the developer carries the planning cost and the eventual price reflects planning value
- Disadvantages: the developer decides whether to buy. The option period can run for many years, during which the landowner cannot sell elsewhere
Promotion agreement
A land promoter funds and manages the planning process. Once planning is secured, the land is marketed and sold, usually to a housebuilder. The promoter recovers its costs and takes an agreed share of the net sale proceeds.
- Advantages: both parties want the highest price, the landowner carries no planning cost and the land is tested on the open market
- Disadvantages: the landowner shares the uplift with the promoter and the timescale can be long
Joint venture or partnership
On some sites a landowner may prefer to stay involved, contributing the land into a partnership with a developer in return for a share of the eventual value. This can suit landowners who want a say in the quality of what is built. It needs careful structuring and advice.
Comparing the routes
| Route | Planning cost carried by | Landowner certainty | Share of planning value |
|---|---|---|---|
| Unconditional sale | Buyer | High, immediate | Low, unless overage applies |
| Conditional contract | Usually buyer | Medium, tied in until condition met | Medium to high |
| Option agreement | Developer | Lower, developer chooses whether to buy | High, less agreed discount |
| Promotion agreement | Promoter | Lower, depends on planning and market | High, less promoter share |
Unconditional sale
- Planning cost carried by
- Buyer
- Landowner certainty
- High, immediate
- Share of planning value
- Low, unless overage applies
Conditional contract
- Planning cost carried by
- Usually buyer
- Landowner certainty
- Medium, tied in until condition met
- Share of planning value
- Medium to high
Option agreement
- Planning cost carried by
- Developer
- Landowner certainty
- Lower, developer chooses whether to buy
- Share of planning value
- High, less agreed discount
Promotion agreement
- Planning cost carried by
- Promoter
- Landowner certainty
- Lower, depends on planning and market
- Share of planning value
- High, less promoter share
What affects the value of development land?
Development land is usually valued on a residual basis. The value of the completed homes is estimated first. The costs of delivering them are then deducted:
- Construction costs, including any abnormal costs such as poor ground, contamination or demolition
- Affordable housing requirements
- Section 106 planning obligations
- The Community Infrastructure Levy, where the council charges it
- Biodiversity net gain and other environmental requirements
- Professional fees, finance costs and sales costs
- A reasonable profit for the developer
What remains is the land value. Two sites of the same size can have very different values because of access, ground conditions, planning obligations or the type of homes the location will support.
Key terms landowners should check
Whatever the route, the detail of the agreement matters as much as the headline price:
- Minimum price. A floor below which the land will not be sold
- Deductible costs. Exactly which costs can be deducted from the price and whether they are capped
- Planning obligations. Whether the buyer or promoter can agree obligations that reduce the land value without the landowner's consent
- Long stop date. When the agreement ends if planning or other conditions are not met
- Satisfactory planning permission. How the agreement defines an acceptable permission
- Overage. The trigger, calculation and period of any future payment
- Retained land. Rights of access and services over any land the landowner keeps
- Professional fees. Whether the buyer or promoter contributes to the landowner's legal and agent fees
Title issues such as unregistered land, restrictive covenants, tenancies and ransom strips should be identified early. They can affect both value and timescale.
How Hattelle Homes approaches land
Hattelle Homes focuses on residential and residential led development, from new housing and apartment schemes to regeneration and the conversion of existing buildings. We look for sites where thoughtful planning and design can create homes people are proud to live in, within places that improve with time.
We prefer to be open with landowners from the first conversation about planning prospects, likely constraints and the route that suits their circumstances.
Considering selling land with residential potential?
Hattelle Homes works in partnership with Matthews & Roberts on selected residential opportunities. From an initial conversation we can look at the planning potential, development viability and the practical route from opportunity to delivery.
We welcome introductions from landowners, property owners, agents, investors and development partners.
Frequently asked questions
What is the best way to sell land for residential development?
There is no single best route. An unconditional sale gives certainty now but usually at a lower price. A conditional contract, option agreement or promotion agreement can achieve a higher value once planning is secured but take longer and carry more uncertainty. The right choice depends on the landowner's timescale, appetite for risk, the planning position and the need for tax and legal advice.
What is the difference between an option agreement and a promotion agreement?
Under an option agreement a developer pays the landowner for the exclusive right to buy the land within a set period, usually once planning is secured, at a price or valuation formula agreed in advance. Under a promotion agreement a land promoter funds and manages the planning process, then the land is sold on the open market. The promoter recovers its costs and takes an agreed share of the net proceeds, so both parties benefit from achieving the best price.
What is a conditional contract for land?
A conditional contract is a contract to buy land that only completes once a condition is met, most often the grant of a satisfactory planning permission. Contracts are exchanged at the start with the price or a pricing mechanism agreed. If the condition is not met by a long stop date, either party can usually end the contract.
What is overage when selling land?
Overage is an agreement that the buyer will pay the seller an additional sum if a defined event happens after the sale, such as the grant of a planning permission or the land being sold on at a higher value. It lets a landowner share in future value while selling now. The trigger, calculation and period of the overage all need to be clearly defined.
How is the value of development land worked out?
Development land is usually valued on a residual basis. The value of the completed homes is estimated, then the costs of building them are deducted, including construction, planning obligations, the Community Infrastructure Levy, affordable housing, fees, finance and a reasonable profit for the developer. What remains is the value of the land. Planning requirements and abnormal costs can have a large effect on the result.
Have land or a building with residential potential?
