A property chain is a sequence of linked transactions — your seller may be buying another property, whose seller may be buying somewhere else, and so on. Everyone in the chain typically needs to exchange and complete on the same day, because each sale is funding the next purchase.

In short: the longer the chain, the more people's timelines have to align — and the more room there is for one delay to affect everyone.

Why chains cause delays

Because every link depends on the others being ready at the same time, a single slow mortgage offer, a survey issue several links away, or one buyer getting cold feet can hold up completion for everyone else in the chain — even those with no direct connection to the problem.

Ways to reduce your exposure

  • Being a first-time buyer or cash buyer with no chain of your own
  • Choosing a seller who has already found somewhere to move to (or is renting after selling)
  • Getting your mortgage offer, survey and searches moving as early as possible so you're not the delay
  • Keeping regular contact with your solicitor and estate agent, who can often flag chain issues early

What happens if someone pulls out of the chain?

Before exchange, this can happen without legal consequence for that party, but it can delay or unravel the whole chain, sometimes forcing others to find new buyers or sellers. This is one of the reasons buyers and sellers are often reluctant to commit significant costs, like a full survey, too early.

Can I avoid a chain altogether?

Buying a new-build, buying from a seller with no onward purchase, or being a cash buyer purchasing from someone in a similar position are the main ways to minimise chain risk.

This guide is for general information only and does not constitute legal advice. Every chain is different — your solicitor can advise on the specific risks in your transaction.