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Development Agreement Disputes UK: How to Resolve Them

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Part ofProperty Disputes

Written by Brad Askew Solicitor (non-practising)
Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice.
Updated June 2026 · England & Wales
When land or property is developed in the UK, the written agreement between the parties is usually what holds the whole project together. It sets out who does what, who pays for what, and who carries the risk when something goes wrong. And things do go wrong. Planning permissions get refused, ground conditions turn out to be worse than expected, costs spiral, and deadlines slip. When that happens, the parties often find themselves in disagreement about what the contract actually requires. This page looks at the most common types of development agreement disputes in England and Wales, how they tend to unfold, and the routes available for resolving them. If you are facing a live issue and want to talk it through with someone who understands how these arguments usually play out, you can book a call using the button on this page.

What this document is

A development agreement is the contract that governs a property or land development project between parties such as a landowner, a developer, a funder, or joint venture partners. It typically sets out the scope of works, the payment structure, timescales, planning obligations, overage or profit share arrangements, and how risks like cost overruns or planning refusals are allocated.

Because these contracts are often long, bespoke, and tied to real-world events that unfold over years, there is plenty of room for the parties to end up reading the same clause differently. A dispute arises when one side believes the other has not performed as the agreement requires, or when an unexpected event triggers a clause whose meaning is unclear.

Disputes can range from minor payment disagreements to full-scale claims for breach, misrepresentation, or specific performance. How they are resolved depends on what the agreement says about dispute resolution, the commercial relationship between the parties, and how much value is genuinely at stake.

How to use this document

  1. Read the agreement carefully before taking any action. Before raising a formal dispute, go back to the contract itself. Check the relevant clauses, any definitions, the notice provisions, and the dispute resolution mechanism. Many agreements require mediation or expert determination before court proceedings, and missing a contractual step can weaken your position later on.
  2. Gather the paper trail and establish the timeline. Collect the signed agreement, variations, board minutes, planning correspondence, payment records, programme updates, and any emails where the disputed point was discussed. A clear chronology showing what was agreed, what happened, and when each party raised concerns will shape how strong your position looks.
  3. Open a without prejudice conversation with the other party. Most development disputes settle without a courtroom. A structured commercial conversation, ideally recorded in writing and marked 'without prejudice', lets both sides explore compromise without those discussions being used against them later. This is often the quickest and cheapest way to unlock a stuck project.
  4. Follow the contractual dispute resolution route. If informal talks do not work, look at whether the contract points to mediation, adjudication, expert determination, or arbitration. Each has different timescales, costs, and levels of finality. For construction-related works, statutory adjudication under the Housing Grants, Construction and Regeneration Act 1996 may also be available.
  5. Consider court proceedings as a last resort. Where the sums are large or the other side refuses to engage, a claim in the Business and Property Courts may be the right step. Litigation is expensive and slow, so weigh the commercial value, the strength of your evidence, and the impact on the wider project before issuing a claim.

Common questions

If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Common questions

Q What counts as a development agreement in the UK?
A development agreement is any contract that governs how a property or land development project will be carried out between two or more parties. It usually covers scope, programme, payment, planning risk, and what happens on completion. Common examples include landowner and developer agreements, joint venture arrangements, forward funding contracts, and promotion agreements. The exact name matters less than what the contract actually says about each party's obligations.
Q What are the most common causes of disputes?
In practice, disagreements tend to cluster around a few recurring themes: unclear drafting about the scope of works, missed deadlines and what counts as a valid extension of time, cost overruns and who pays for them, planning refusals or delays, and disagreements over overage or profit share calculations at the end of a project. Poor record-keeping during the build phase often makes these problems harder to resolve.
Q Do I have to go to court to resolve a development dispute?
No, and usually it is better not to. Most development agreements include a dispute resolution clause requiring mediation, expert determination, or arbitration before any court claim. Even without such a clause, parties are expected to try alternative dispute resolution first, and the courts can penalise a party that unreasonably refuses to engage. Litigation tends to be the last step, not the first.
Q What is adjudication and when does it apply?
Adjudication is a fast-track dispute resolution process available for construction contracts under the Housing Grants, Construction and Regeneration Act 1996. A decision is typically produced within 28 days and is binding unless overturned in later proceedings. It is well suited to payment disputes and specific contractual arguments, but it is not available for every type of development agreement, so the contract and statutory definitions need checking.
Q Can I claim for delays on a development project?
Possibly, but it depends on what the contract says. Well-drafted agreements set out which events entitle a party to an extension of time, and which delays trigger liquidated damages or a right to terminate. You will usually need to show the cause of the delay, the financial impact, and that you followed any required notice procedure. Keeping contemporaneous records is essential for any delay claim.
Q How long do I have to bring a claim?
For most contract claims in England and Wales, the limitation period is six years from the date of breach, or twelve years for contracts executed as deeds. Different rules may apply for claims involving latent defects, misrepresentation, or negligence. Limitation is a technical area, so if your dispute relates to events from several years ago, it is worth checking the position before committing to any particular route.
Q What should I do before starting a formal dispute?
Read the contract, pull together your documents, map out the timeline, and think carefully about what outcome you actually want. Raising a formal dispute is a significant step that can harm commercial relationships and trigger cost risk. Often the best first move is a frank, without prejudice conversation with the other party, ideally after taking a view on how strong your position looks.
If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Sources

This guide is based on primary UK law and official guidance.

Brad Askew, Solicitor (non-practising)

Written & reviewed by

Brad Askew Solicitor (non-practising)

Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.

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Legal disclaimer
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.