For UK Landowners
How Much Is Land Worth to a Developer?
UK developers typically pay 15–30% of the gross development value (GDV) for residential land. Without planning that's 15–20%; with planning it rises to 25–35%. Below: how that number is calculated, a worked example, and how landowners can earn 50–100% more by selling serviced plots instead.
The short answer
15–20% of GDV. The developer is carrying all the planning risk, so they discount accordingly.
25–35% of GDV. Outline or full planning de-risks the site and lifts the offer.
40–50%+ of GDV. Selling serviced plots directly to self-builders bypasses the developer's profit margin and typically delivers 50–100% more than a developer offer.
How developers calculate what to pay
Developers use a method called residual valuation. They start with the gross development value (the sale price of the finished houses) and subtract every cost they expect to incur — plus their target profit. Whatever is left is what they can afford to pay for the land.
The single largest line item is the developer's profit margin — typically 20–25% of GDV. That's value created by your land that the developer keeps for themselves.
A worked example: a 5-plot site
Imagine you own a paddock that could fit 5 detached homes, each selling for £600,000. The total GDV is £3,000,000.
Developer offer
- GDV£3,000,000
- Build (~40%)−£1,200,000
- Fees, finance, marketing (~15%)−£450,000
- Developer profit (~22%)−£660,000
- Land value to developer£690,000
~23% of GDV
Selling serviced plots
- 5 plots × £300,000£1,500,000
- Infrastructure (~£40k/plot)−£200,000
- Planning & design−£60,000
- Finance, legal, marketing−£90,000
- Net to landowner£1,150,000
~38% of GDV — +£460,000 vs. the developer offer
Figures are illustrative and vary by location, plot size, infrastructure cost, and planning status. Use the calculator below for figures specific to your site.
Try the numbers on your own site.
Our free land value calculator compares developer offers vs serviced plot sales for your specific region and site size.
Three reasons developers pay less than your land could be worth
1. The profit margin
A developer's 20–25% profit on GDV is value created by your land that doesn't reach you. On a £3m scheme that's roughly £660,000 staying with the developer.
2. Wholesale vs. retail
A developer buys land at wholesale and sells finished houses at retail. Selling serviced plots to self-builders cuts out the middleman entirely.
3. Risk pricing
Without planning, developers price in the risk of refusal. The discount can be £200k+ on a small site. Securing Permission in Principle first removes most of that discount.
The alternative: serviced plots for self-builders
Most landowners don't realise there is a third option between "accept the developer's offer" and "do nothing." Selling individual serviced plots to self-builders typically delivers 50–100% more than a developer offer on the same site. The reasons:
- Self-builders willingly pay 10–20% more per plot than equivalent developer-built homes.
- The developer's 20–25% profit margin no longer applies — that value stays with you.
- The Self-build and Custom Housebuilding Act 2015 creates a legal duty on councils to provide enough self-build plots — tipping the planning balance in favour of small self-build sites, especially on village or town edges.
LivedIn secures Permission in Principle for landowners on a no-win-no-fee basis — we fund the planning at our risk. If planning is refused, you pay nothing. If it succeeds, you can sell to a developer at the higher post-planning price, retain and design the site, or sell plots directly to self-builders for the maximum return.
Frequently Asked Questions
How much will a developer pay for my land?
UK property developers typically pay between 15% and 30% of the gross development value (GDV) of the homes that will be built on the land. Without planning permission, offers usually sit at the lower end (15–20% of GDV). With planning permission in place, offers can rise to 25–35% of GDV. Developers must discount the land price to cover construction costs, professional fees, finance, marketing, and a profit margin of typically 20–25%.
Why do developers pay so little for land?
Developers operate on a residual valuation basis: they start with the gross development value (the sale price of the finished homes), then subtract construction, fees, finance, marketing, contingency, and a developer profit margin of 20–25%. Whatever is left is what they can pay for the land. They are not trying to be unfair — their offer reflects the cost and risk of bringing the development to market themselves.
Can I get more than a developer's offer?
Yes. The biggest single uplift comes from creating serviced building plots and selling them directly to self-builders. Self-builders willingly pay 10–20% more per plot than developers do, and the developer's profit margin (20–25%) stays with you rather than the developer. End-to-end this typically delivers 50–100% more than a comparable developer offer.
What is GDV (gross development value)?
GDV is the total expected sale value of all the new homes built on the land — i.e. what the developer will eventually sell the finished houses for. A developer works back from this figure, subtracting all costs and their target profit margin, to calculate what they can afford to pay for the land. GDV is the single most important number in any residential land valuation.
Do I need planning permission before selling to a developer?
No, but it usually pays to have at least Permission in Principle in place. Land without planning is treated as a higher-risk asset and discounted accordingly — typical offers are 15–20% of GDV. Land with planning is more valuable and trades at 25–35% of GDV. The cost of securing planning is usually a fraction of the uplift it produces.
What's an option agreement and how does it affect land value?
An option agreement gives the developer the right to buy your land at a future date, usually after they have secured planning permission. You typically receive a small upfront option fee, and a pre-agreed price (or formula) when the option is exercised. Options are useful when planning is uncertain, but they tie up your land for years and the headline price is often discounted to compensate the developer for the planning risk they're carrying.
Related guides for landowners
- Land value calculator — compare routes for your specific site →
- Sell land for housing: serviced plots vs developer sale →
- Option vs promotion vs serviced plots — which deal structure pays best? →
- The four-stage landowner process — exit at any point →
- For landowners: free site assessment, no-win-no-fee planning →
Estimates only. Land values vary significantly by location, planning status, infrastructure cost, market conditions, and the specifics of each site. Always seek professional valuation advice before making decisions about your land.