The average time from Sold STC to completion in the UK is usually around 3 to 4 months. In England and Wales, Sold STC means an offer has been accepted, but the sale is still subject to contract and is not legally binding until exchange of contracts. GOV.UK confirms that an offer is not legally binding in England and Wales until contracts are exchanged.
A straightforward cash purchase with no chain may complete in around 6 to 10 weeks, while a mortgaged purchase in a chain may take 12 to 20 weeks or more. After exchange, the completion date is often set around 2 to 4 weeks later, although exchange and completion can happen on the same day in some cases.
Summary Table: Sold STC to Completion Timeline:
| Stage | Typical Timing | What Happens | Key Point |
| Offer accepted / Sold STC | Day 1 | Seller accepts buyer’s offer | Not legally binding in England and Wales until exchange |
| Conveyancer instructed | Week 1 | Buyer and seller appoint solicitors or conveyancers | Delays often start if either side is slow to instruct |
| Mortgage, survey and searches | Weeks 2–8 | Buyer arranges mortgage, survey and local authority searches | Mortgage or survey issues can change the timeline |
| Enquiries and contract review | Weeks 4–12 | Conveyancers raise and answer legal questions | Leasehold and chain sales often take longer |
| Exchange of contracts | Often weeks 8–16 | Contract becomes legally binding | Completion date is agreed at exchange |
| Completion | Often 2–4 weeks after exchange | Money transfers, seller moves out and buyer gets keys | Buyer becomes the legal owner on completion |
| HM Land Registry update | After completion | Buyer’s ownership is registered | Registration is separate from completion |
GOV.UK explains that an offer is not legally binding until contracts are exchanged in England and Wales, which is why a Sold STC property can still fall through before exchange.
What Does Sold STC Mean?
Sold STC means Sold Subject to Contract. In practical terms, the seller has accepted an offer, but the legal contract has not yet been exchanged.
At this stage, the property is usually treated as under offer, the buyer starts the conveyancing process, and the seller’s solicitor prepares contract documents. However, in England and Wales, either party can usually withdraw before exchange without breaching the sale contract, although they may still lose money spent on surveys, searches, mortgage fees or legal work.
According to GOV.UK, an offer made subject to contract means the price may still be negotiated, for example if a survey finds a problem with the property.
Is Sold STC the Same as Completion?
No. Sold STC is near the beginning of the legal sale process, while completion is the end of the transaction.
Sold STC means the seller has accepted an offer. Completion means the money has been transferred, the seller has moved out as agreed, the buyer has received the keys, and ownership has passed to the buyer. The Law Society explains that completion takes place when the buyer’s solicitor transfers the purchase money to the seller’s solicitor and the buyer can usually collect the keys once the seller’s solicitor has received the funds.
Typical Sold STC to Completion Timeline
Week 1: Offer Accepted and Conveyancers Instructed
Once the property is marked Sold STC, both parties should instruct a conveyancer quickly. The seller’s conveyancer prepares the draft contract pack, while the buyer’s conveyancer starts identity checks, source-of-funds checks and initial legal work.
A common early delay happens when a buyer waits too long to instruct a solicitor, apply for a mortgage or pay for searches.
Weeks 2 to 6: Mortgage Application, Survey and Searches
The buyer usually applies for a mortgage, arranges a survey and pays for property searches. Searches may include local authority searches, drainage and water searches, environmental checks and other location-specific searches.
If the mortgage valuation is lower than expected, the survey reveals defects, or the lender requests more documents, the timeline can stretch. This is one reason Sold STC does not guarantee completion.
Weeks 4 to 12: Enquiries and Legal Checks
The buyer’s conveyancer reviews the contract pack, title documents, property forms, search results and mortgage conditions. They may raise enquiries with the seller’s conveyancer.
Common enquiries include questions about boundaries, planning permissions, building regulations, guarantees, service charges, ground rent, lease terms, access rights, restrictive covenants and missing certificates.
Leasehold properties often take longer because the buyer’s solicitor may need a management pack from the freeholder or managing agent.
Weeks 8 to 16: Exchange of Contracts
Exchange is the point at which the sale normally becomes legally binding in England and Wales. GOV.UK states that exchanging contracts is an official legal commitment and that withdrawing after exchange may mean losing the deposit and paying compensation to the seller for other losses.
At exchange, the buyer and seller agree a completion date. This is often around 2 to 4 weeks later, although it can be shorter or longer depending on the circumstances.
Completion Day: Money Transfers and Keys Released
On completion day, the buyer’s solicitor sends the purchase money to the seller’s solicitor. Once the money is received, the estate agent can usually release the keys. GOV.UK lists completion steps including the transfer of money, legal documents being sent, the seller moving out, the buyer receiving keys and ownership passing to the buyer.
What Can Delay Completion After Sold STC?
Several issues can delay the move from Sold STC to completion.
Property Chain Delays
A chain exists when the buyer or seller depends on another property sale or purchase. If one person in the chain has a mortgage delay, survey issue or legal problem, everyone else can be affected. GOV.UK notes that buying and selling can take longer when a person is part of a chain.
Mortgage Offer Delays
Completion cannot usually happen until the buyer has a formal mortgage offer, the lender’s conditions are satisfied, and funds are ready for release.
Survey Problems
If a survey finds damp, structural movement, roof problems, Japanese knotweed, electrical issues or other defects, the buyer may renegotiate, ask for repairs or withdraw.
Slow Search Results
Some local authority searches are returned quickly, while others take longer depending on the council, property location and transaction volume.
Leasehold Pack Delays
Leasehold flats and some leasehold houses often require additional documents from a freeholder, landlord or managing agent. Missing information about service charges, building insurance, major works, ground rent or lease terms can slow the process.
Title or Boundary Issues
Problems with title deeds, rights of way, restrictions, unregistered land, missing permissions or unclear boundaries can require extra legal work.
Buyer or Seller Readiness
Even when the legal work is nearly complete, delays can happen if a party has not signed documents, transferred deposit money, booked removals or agreed a completion date.
Practical Examples
Example 1: No-Chain Cash Buyer
A seller accepts an offer from a cash buyer who does not need a mortgage and is not selling another property. The property is freehold, the title is straightforward, and searches return quickly.
Possible timeline: 6 to 10 weeks from Sold STC to completion.
Example 2: First-Time Buyer With Mortgage
A first-time buyer has a mortgage agreement in principle and no property to sell. The seller is moving into an empty property. Searches and enquiries are straightforward.
Possible timeline: 10 to 14 weeks from Sold STC to completion.
Example 3: Leasehold Flat in a Chain
A buyer is purchasing a leasehold flat with a mortgage, while the seller is also buying another property. The management pack takes time to arrive, and the buyer’s solicitor raises enquiries about service charges and planned works.
Possible timeline: 16 to 24 weeks or more.
How Buyers Can Help the Process Move Faster?
Buyers can reduce avoidable delays by instructing a conveyancer early, preparing proof of funds, arranging a mortgage application promptly, booking a survey quickly and responding to solicitor questions without delay.
They should also check emails carefully, return signed documents quickly and avoid making large unexplained financial transfers during the mortgage process unless they have spoken to their lender or adviser.
This is general guidance only. Buyers should take regulated mortgage advice or legal advice where needed.
How Sellers Can Help the Process Move Faster?
Sellers can prepare before accepting an offer by choosing a solicitor early, completing property information forms accurately, locating planning permissions and guarantees, checking leasehold documents, and ordering a management pack quickly if the property is leasehold.
Sellers should also be honest about known issues. Trying to hide defects, disputes or missing documents can create delays later and may cause the buyer to lose confidence.
What Happens Between Exchange and Completion?
Between exchange and completion, the transaction is usually legally binding. The buyer and seller prepare for the agreed move date.
Buyers normally arrange buildings insurance, confirm removals, transfer completion funds and prepare utility changes. GOV.UK’s selling guidance says that between exchange and completion, sellers should inform their removal company of the move date and contact utility, water and broadband providers to close or move accounts.
Is Completion the Same as HM Land Registry Registration?
No. Completion is when the buyer becomes the owner and gets the keys. HM Land Registry registration is the administrative legal update that happens after completion.
HM Land Registry explains that first registrations can take significantly longer than ordinary completion timelines, with half completed in about 8 months and almost all in about 12 months. This does not usually stop the buyer from moving in after completion, but it can matter for later sales, remortgages or title updates.
Does the Timeline Differ Across the UK?
Yes. Property law and buying processes differ across the UK.
England and Wales
In England and Wales, an accepted offer is not legally binding until exchange of contracts. This is the main reason a property can be Sold STC but still not guaranteed to complete.
Scotland
Scotland uses a different process involving missives. mygov.scot explains that once the missives are accepted and both buyer and seller agree the terms, there is a binding contract.
Northern Ireland
In Northern Ireland, the exchange of contracts is also the point at which the sale becomes legally binding. nidirect explains that once contracts are signed, both buyer and seller must follow the contract terms or could face court action.
Final Takeaway
From Sold STC to completion, a UK property sale commonly takes around 3 to 4 months, with England and Wales official guidance showing that the wider buying and selling process averages about 5 months. The most important point is that Sold STC does not mean the transaction is legally complete.
For buyers and sellers, the best way to reduce delays is to prepare documents early, instruct conveyancers promptly, respond quickly, and understand that exchange of contracts is the key legal milestone before completion.
FAQs
Can Sold STC fall through?
Yes. A sale can fall through before exchange. The government’s 2026 home buying and selling reform roadmap states that around one in three transactions fall through.
Is Sold STC legally binding?
In England and Wales, no. GOV.UK confirms that an offer is not legally binding until exchange of contracts.
How long from exchange to completion?
The completion date is often around 2 to 4 weeks after exchange, although exchange and completion can happen on the same day.
What is the fastest possible time from Sold STC to completion?
A simple cash, no-chain, freehold purchase might complete in around 6 to 10 weeks, but this is not guaranteed.
Why is conveyancing taking so long after Sold STC?
Common reasons include slow searches, mortgage delays, survey issues, leasehold management packs, unanswered enquiries, chain problems and missing paperwork.
Can a seller accept another offer after Sold STC?
Before exchange in England and Wales, the sale is usually not legally binding. This means the risk of another offer still exists, although estate agents and sellers should act transparently and follow relevant rules and codes.
What should a buyer do after a property is Sold STC?
A buyer should instruct a conveyancer, submit the mortgage application, arrange a survey, pay for searches, provide identification and proof of funds, and respond quickly to solicitor requests.
What should a seller do after accepting an offer?
A seller should instruct a solicitor, complete property information forms, prepare documents, respond to enquiries and make sure any leasehold or management information is requested early.
Does Sold STC mean the property is off the market?
Usually, yes, but practices vary. A property may still appear online as Sold STC while the legal process continues.
Editorial Note: This article has been reviewed against official GOV.UK, HM Land Registry, Law Society, MoneyHelper, mygov.scot and nidirect guidance. Last reviewed: 6 July 2026.
Disclaimer: This article provides general information for UK readers and should not be treated as legal, mortgage, tax or financial advice. Property law and transaction steps vary across England, Wales, Scotland and Northern Ireland. Buyers and sellers should speak to a qualified conveyancer, solicitor, mortgage adviser or tax professional about their own circumstances.
