An accepted offer feels like the finish line. It is closer to the starting gun. Between acceptance and completion sits a legal and financial process that can take weeks or months, and in England and Wales the deal is not binding until exchange of contracts. This guide explains each stage, why sales collapse, and what you can do to keep yours moving.
The stages between offer and completion
Most purchases follow the same path. Knowing the order helps you spot where yours is stuck.
| Stage | What happens | Who leads it |
| Offer accepted | Price agreed, memorandum of sale issued. Not yet legally binding. | Estate agent |
| Conveyancing begins | Solicitors instructed, contract pack sent, ID and funds checked. | Solicitors |
| Searches and enquiries | Local authority, water, environmental searches; questions raised on the property. | Buyer’s solicitor |
| Mortgage and survey | Lender values the property and issues a formal offer; buyer may commission a survey. | Lender and surveyor |
| Exchange of contracts | Both sides sign, deposit paid, completion date fixed. Now legally binding. | Solicitors |
| Completion | Balance transferred, keys released, ownership changes. | Solicitors |
Why sales fall through
A significant share of agreed sales never complete. The reasons are usually one of a handful.
- Chain collapse. A related sale higher or lower in the chain breaks, and yours falls with it.
- Mortgage or valuation problems. The lender values the home below the agreed price, or the buyer’s finances change.
- Survey findings. A survey uncovers issues like damp, structural movement or a short lease, and the buyer renegotiates or walks.
- Legal problems. Boundary disputes, missing building regulation certificates, or restrictive covenants surface in the searches.
- Gazumping or cold feet. Because nothing is binding before exchange, either side can change their mind or accept a higher offer.
What a chain is and why it matters
A chain is the linked sequence of transactions where each purchase depends on a sale. If you are buying with a property to sell, and your buyer is also selling, you are all connected. The chain moves at the speed of its slowest link. One delayed mortgage offer or slow solicitor holds up everyone. Chain-free buyers, such as first-time buyers or cash purchasers, are attractive precisely because they remove this risk.
A real scenario
A couple had their offer accepted and assumed a quick move. The seller above them was buying a new-build that slipped by two months. Their own mortgage offer, valid for six months, edged toward expiry while they waited. By staying in weekly contact with their solicitor and asking the agent to confirm the top of the chain was still committed, they spotted the delay early and asked their lender to extend the offer before it lapsed. The sale completed. Had they assumed everything was fine, an expired mortgage offer could have collapsed the whole chain.
Common mistakes and how to fix them
- Going quiet after acceptance. Silence lets delays hide. Fix: check in with your solicitor roughly weekly and log every update.
- Instructing a solicitor late. Weeks are lost before work even starts. Fix: line up your conveyancer before you offer, so they can begin the day it is accepted.
- Skipping a proper survey to save money. An unfound defect costs far more than a survey. Fix: match the survey level to the property’s age and condition.
- Ignoring the chain. Focusing only on your own link. Fix: ask the agent regularly about the whole chain’s progress, top and bottom.
- Booking removals before exchange. Nothing is certain until exchange. Fix: confirm firm bookings only once contracts are exchanged.
Action steps to protect your purchase
- Instruct a conveyancer immediately, ideally chosen in advance.
- Return ID, forms and the contract pack the moment they arrive.
- Apply for your mortgage promptly and note the offer’s expiry date.
- Commission a survey suited to the property’s age and condition.
- Ask the agent for regular updates on the full chain, not just your sale.
- Delay firm removal bookings until after exchange of contracts.
Conclusion and next step
The period after an accepted offer is where most deals are won or lost through delay and poor communication, not price. The buyers who complete are usually the ones who stay informed and respond fast. Your next step: choose and instruct a conveyancer now, and set a weekly reminder to ask your solicitor and agent one simple question, what is outstanding and who is it waiting on?
FAQ
How long does it take from offer accepted to completion?
It varies widely with the chain and the property, but many purchases in England and Wales take somewhere in the region of two to four months. Complex chains or legal issues can extend this considerably.
When does the sale become legally binding?
In England and Wales, at exchange of contracts, not when the offer is accepted. Before exchange, either party can withdraw without legal penalty. Scotland’s system differs and becomes binding earlier.
What is gazumping?
Gazumping is when a seller accepts a higher offer from another buyer after already accepting yours, before contracts are exchanged. It is possible because the earlier agreement is not yet binding.
Can I speed up the process?
You can control your own part: instruct a solicitor early, return paperwork quickly, apply for your mortgage promptly, and chase updates. You cannot force other links in the chain, but early problem-spotting prevents avoidable delays.
Do I need a survey if the lender values the property?
A lender’s valuation checks the property is worth the loan, not that it is sound for you. A separate survey assesses condition and defects, which the valuation does not cover in detail.
References
UK Government guidance on buying and selling a home (gov.uk); HM Land Registry, which records property ownership in England and Wales.