Why So Many House Sales Fall Through – And How to Reduce the Risk

Buying or selling a home is often one of the biggest financial decisions people make. Yet many buyers and sellers are surprised to discover that an accepted offer does not guarantee a successful move.

Why House Sales Fall Through

Recent research by the Open Property Data Association suggests that the problem is becoming more common. Its analysis found that 58% of agreed property transactions failed to complete in 2024, up from 53% the previous year. The organisation estimates that a failed sale can cost buyers and sellers an average of around £2,800 in lost fees and expenses.

One reason is that the house-buying process in England and Wales is not legally binding until contracts are exchanged. This means that either party can withdraw from the transaction before that point, even after surveys have been completed and legal work has begun.

Property chains remain one of the most common causes of failed transactions. If one buyer or seller in a chain pulls out, the consequences can quickly spread through the entire chain, causing several linked transactions to collapse.

Mortgage issues can also arise after an offer has been accepted. Changes in a buyer’s circumstances, lending criteria or affordability assessments may mean that a mortgage offer is withdrawn or reduced, making it impossible for the purchase to proceed.

Survey results are another frequent source of difficulty. A survey may reveal structural problems, damp, roof defects or other issues that were not previously known. This can lead to lengthy negotiations over price reductions or repairs and, in some cases, the buyer may decide to walk away altogether.

Delays themselves can also become a problem. Industry figures suggest that property transactions are taking longer than they did a few years ago, increasing the risk that buyers or sellers may change their plans, find an alternative property or simply lose confidence in the transaction.

Steps Buyers And Sellers Can Take

Fortunately, there are steps that can help reduce the risk of a sale falling through.

For sellers, preparation is often key. Having title documents, planning permissions, guarantees and other paperwork ready at an early stage can help avoid delays later in the process. Being realistic about pricing can also reduce the likelihood of problems arising after surveys and valuations have been completed.

For buyers, obtaining a mortgage agreement in principle before making an offer can provide greater certainty. Arranging surveys promptly and responding quickly to requests from solicitors and lenders can also help keep matters moving.

Good communication is equally important. Keeping in regular contact with estate agents, solicitors and mortgage advisers can help identify potential issues before they become serious problems.

Improving The Chances Of A Successful Move

While no property transaction is entirely risk-free, early preparation, realistic expectations and prompt action can significantly improve the chances of a successful move.

For many buyers and sellers, taking professional advice at an early stage remains one of the most effective ways to reduce delays and avoid unexpected difficulties during the conveyancing process.

If you are buying or selling a home, obtaining legal advice at an early stage can help identify potential issues, keep your transaction on track and reduce the risk of unnecessary delays. Our Residential Conveyancing team advises clients on all aspects of the buying and selling process and can provide practical support throughout your move.

About the Author

Gurjit is an Associate in the Residential Conveyancing team at Machins. She advises clients on a wide range of residential property matters, including sales and purchases, remortgages, transfer of equity, new build properties and shared ownership transactions. Qualified as a Solicitor since 2004, Gurjit is known for providing a professional, efficient and friendly service.