How to Sell Land to a Developer: Steps, Offers and Pitfalls
To sell land to a developer, first find out what the land could be worth with planning permission, then decide how much of the planning risk you want to carry. That decision picks your route: an outright sale now, a sale conditional on planning, an option, a promotion agreement or a joint venture. Only then go to the market, with your title in order and a solicitor who does land deals.
Most owners do it in reverse. A developer knocks on the door with a number, and the owner negotiates around that number without knowing what it's based on. The developer knows exactly what your land is worth to them. You should too.
This guide walks through the process in the order we'd do it if it were our land.
Step 1: Get your paperwork straight
Developers price uncertainty. Every unanswered question about your land becomes a lower offer or a longer conditional period. Before anyone values it, gather:
- Title. The register and title plan from HM Land Registry. Check the boundaries on the plan match what's on the ground.
- Access. How the land reaches a public road, and whether every strip in between is yours. A gap owned by someone else is a ransom strip, and the owner of it can demand a share of the value.
- Rights and covenants. Rights of way, easements, and restrictive covenants (for example "no more than one dwelling"). Many can be released or insured, but a buyer will discount for them.
- Planning history. Past applications on your land and nearby, from the council's planning register.
- Occupation. Any leases, licences or tenancies, and when they end.
An afternoon with these documents saves weeks in negotiation.
Step 2: Work out what a developer will pay
Developers don't price land by the acre. They price it backwards from what they can build.
The method is called a residual valuation: the value of the finished scheme (gross development value, or GDV), minus build costs, fees, finance, the council's contributions and the developer's profit. What's left is what the land is worth to them. We explain each line in development appraisal, GDV and residual land value.
Two things follow from this:
- Your land's value depends on the scheme, not the plot. Ten flats is a different number from four houses on the same site. Different developers may see different schemes, which is why offers can vary widely.
- Planning is the biggest lever. Land with permission is worth what the consented scheme supports. Land without it is worth a fraction of that, because the buyer is pricing in the risk of refusal. That gap is what our land value uplift page is about.
You don't need a full appraisal to start. But you do need a credible view of what could be built before you accept anyone else's.
Step 3: Decide how much planning risk you'll carry
This is the decision that matters most, and owners often don't realise they're making it.
| Route | You get | You carry | Suits |
|---|---|---|---|
| Unconditional sale | A price now, completion in weeks | None after completion, but you sell at today's value | Owners who need certainty or speed |
| Conditional contract ("subject to planning") | A higher price, paid only if planning is granted | The wait, and the risk the deal falls away | Sites where planning looks likely |
| Option agreement | An option fee now, a price at market value less an agreed discount later | The wait; the buyer funds planning | Sites needing years of promotion |
| Promotion agreement | Most of the open-market price of the consented land | The wait; the promoter funds planning and takes a share | Owners who want the best price and to keep control of the sale |
| Joint venture | A share of the finished scheme's value | Development risk, alongside the developer | Owners who can wait and want the upside |
The three middle routes are explained side by side in option vs promotion agreement vs joint venture.
Here's the short version. The more risk you hand to someone else, the more of the uplift you hand over with it.
Step 4: Go to the market properly
There's no single right way, but there are wrong ones.
- One-to-one with a developer who approached you. Quick and private, but you only find out what one buyer thinks. Fine if you've done Step 2 and the offer stands up against it.
- Through a land agent. An agent markets the site to a list of developers and runs a bidding process. You pay a fee, and you get competition.
- Informal tender. Bidders submit offers by a deadline on a set basis (scheme assumptions, conditions, timescales), so you compare like with like.
Whichever you choose, ask every bidder for the same things in writing: the price, what it assumes (the scheme, the number of homes), every condition, the long-stop date, the deposit, and who pays your costs.
Step 5: Heads of terms, then lawyers
Once you pick a buyer, the main points go into heads of terms, which aren't binding but set the deal your solicitors will draft. Get these right now. Renegotiating after the lawyers start is expensive and usually goes the buyer's way.
Exchange of contracts is the point of commitment. Completion, and payment, follows on the date in the contract, or when the conditions are met.
The pitfalls that cost owners money
None of these is exotic. They're the ordinary ways a good site ends up sold for less than it should be.
- Selling unconsented when consent was within reach. If the uplift is large and the planning risk modest, selling first hands the uplift to the buyer.
- No minimum price. In an option or promotion agreement, a floor price protects you if the market falls or the valuation goes against you.
- Long-stop dates that are too long. A conditional deal with a five-year long-stop can tie your land up while the buyer waits for the market. Ask what happens at each milestone.
- Exclusivity without commitment. Giving one buyer months of exclusivity without a deposit or a deadline lets them shop your site to others.
- The late price "chip". A buyer agrees a headline price, then reduces it after surveys. Agree up front which findings can change the price, and how.
- No overage. If you sell without planning, an overage (or clawback) clause pays you a share if the buyer later gets a better permission. Agree the trigger, the share and how long it lasts.
- Ignoring tax until the end. Capital gains tax, VAT on commercial land and the timing of option payments all depend on how the deal is structured. Take advice before heads of terms, not after.
What a developer partner can do that a buyer can't
A buyer wants to pay as little as possible for your land. A partner shares the result.
At Craftex we can buy, take an option, fund the planning under a promotion agreement, or partner with you, depending on the site and the stage. Our Development Director, Rob Barton, previously delivered more than 4,000 homes and acquired over £225M of land as a housebuilding managing director, so landowners deal with someone who has sat on the buyer's side of the table.
Because we design and build as well, our appraisals use real construction costs from our own build team. That matters, because build cost is the line developers most often use to justify a lower land price.
We take development schemes from £3M to £150M GDV. See how we buy, promote or partner on land.
Before you sign anything, get the numbers.
