What Happens After You Agree to Sell Land to a Developer?

Agreeing to sell land to a developer is a significant step, but it is rarely the end of the process. Once terms are agreed, there are still important stages to work through, including due diligence, legal checks, surveys, planning considerations, exchange, and completion.

Understanding what happens next can help landowners feel more confident and avoid unnecessary surprises.

Heads of Terms

Once the main commercial points have been agreed, the next stage is usually to prepare heads of terms.

This document sets out the key points of the proposed deal, including the parties involved, the land being sold, the price, the agreed structure, timing, conditions, and any important assumptions.

Heads of terms are not usually the final contract, but they provide a clear framework for solicitors and advisers to work from.

Instructing Solicitors

Both the landowner and developer will usually instruct solicitors.

Land sales can be more complex than standard residential sales, so it is sensible to use a solicitor who understands development land, conditional contracts, option agreements, overage, rights of way, title issues, and planning related matters.

Good legal advice at this stage is essential.

Due Diligence

The developer will normally carry out due diligence before committing fully.

This may include reviewing the legal title, checking access rights, understanding boundaries, considering planning history, arranging surveys, checking utilities, reviewing drainage, and assessing whether the site can be delivered as expected.

Due diligence is not just a formality. It helps confirm whether the opportunity matches what was agreed in principle.

Surveys and Technical Checks

Depending on the site, the developer may request technical investigations.

These could include topographical surveys, ecological assessments, tree surveys, drainage investigations, ground condition reports, contamination checks, highways advice, or utility searches.

Some of these checks may feel detailed, but they are often necessary before a developer can properly assess cost, risk, and deliverability.

Planning Conditions and Contract Structure

Not every land sale completes in the same way.

Some sales are unconditional, meaning the developer buys the land without needing planning permission first. Others are conditional on planning permission being granted or certain other requirements being met.

Where a sale is conditional, the contract should clearly explain what needs to happen, who is responsible, how long the process can take, and what happens if the condition is not satisfied.

Negotiating the Detail

Even after a price is agreed, there may be important details to settle.

These might include access arrangements, rights retained by the landowner, boundary treatment, services, timing of vacant possession, planning obligations, overage provisions, or responsibilities for costs.

This is why the initial agreement needs to be supported by clear professional advice.

Exchange of Contracts

Exchange of contracts is the point at which the agreement usually becomes legally binding.

For an unconditional sale, exchange often means both parties are committed to completing on an agreed date.

For a conditional sale, exchange may take place before planning permission is secured, with completion only taking place once the agreed conditions are met.

Completion

Completion is when ownership of the land transfers to the developer and the agreed purchase money is paid, subject to the terms of the contract.

In straightforward cases, this may happen soon after exchange. In more complex or conditional transactions, completion may follow months later once planning, legal, or technical matters have been resolved.

What Can Cause Delays?

Land transactions can take longer than standard house sales because there are more moving parts.

Common causes of delay include title issues, unclear boundaries, unresolved rights of way, planning uncertainty, survey findings, drainage questions, lender requirements, or disagreement over contract terms.

Not every delay is a problem, but communication is important so everyone understands what is happening and why.

Why Having the Right Advice Matters

Once you agree to sell land, it can be tempting to assume the hardest part is done. In reality, the period after agreeing terms is when many of the most important details are dealt with.

The right advice can help protect your position, keep the transaction moving, and make sure the agreement reflects what you actually intended.

The Bottom Line

Selling land to a developer is a process, not just a price. After terms are agreed, the transaction may involve heads of terms, solicitors, due diligence, surveys, planning conditions, exchange, and completion.

For Hemel Hempstead landowners, understanding these stages early can make the process feel far less daunting.

At David Doyle, our Land and New Homes team can help landowners understand developer interest, agree sensible terms, and navigate the process with clear, local guidance from start to finish.