How Long Does it Take to Sell a House at Auction?

Most auction sales complete within 6 to 12 weeks of instructing the auctioneer, depending on the type of auction you choose. A classic on-the-day auction typically takes around 6 to 8 weeks from booking into auction until money in the bank. An extended auction typically takes 8 to 12 weeks. With both types of auction the sale becomes legally binding on the fall of the hammer.

Speed is only half of it. The real difference is certainty: at auction the dates are fixed before you start. Bidding ends on a set date, contracts exchange there and then, and completion follows a set number of days later. With an estate agent nothing is fixed, and neither side is committed until exchange, which is months away and may never come at all.

Last updated by Mark Grantham on 2 August 2026

The three routes compared

The bars below are drawn to the same scale, measured in weeks from the day you instruct an agent or an auctioneer. The green marker shows the moment the sale becomes legally binding.

Notice where the green marker sits. At auction it comes early, and everything after it is a fixed countdown to completion with a committed buyer. On an estate agency sale it appears right at the end, so almost the entire timeline is time when either side can still walk away.

On-the-day auction: about 6 to 8 weeks

This is the auction most people picture, the "homes under the hammer" format, held in a hotel ballroom or, increasingly, streamed online with bidding by phone and internet. Marketing is intensive and short, and bidding for each lot lasts only a few minutes.

Auction companies set an entry deadline roughly three to four weeks before auction day. That gives them time to prepare the particulars, publish the catalogue, list the property on Rightmove and Zoopla and run block viewings. Where possible it pays to book in early, because the extra marketing time can bring in pre-auction offers.

1. 6 Weeks before: book in, agree a reserve and instruct a solicitor ›
2. 4 Weeks before: entry deadline, legal pack prepared ›
3. 3 Weeks before: catalogue published, marketing begins ›
4. 2 Weeks before: block viewings, buyers download the legal pack ›
5. 1 Week before: final viewings, reserve price confirmed ›
6. 0 Auction day: bidding, contracts exchange, 10% deposit paid ›
7. +4 Weeks after: completion, and the balance is released to you ›

One point worth planning around with an on-the-day auction: you cannot pick any date you like. Each auction house runs a fixed calendar, typically six to ten sales a year, so your start date is really the next available catalogue deadline. Miss it by a few days and you may wait another month or more for the following sale. Our London auction dates table shows the forthcoming dates for the main auctioneers.

What happens on the day

A regional auction might offer 50 to 100 lots and a national auction 100 to 200, so the auctioneer moves through the catalogue at pace, calling one lot after another with barely a pause between them. Once bidding passes the reserve price the property will sell, but that does not stop the bidding: it carries on for as long as buyers keep outbidding one another, and the hammer only falls when nobody will go higher. At that point the winning bidder pays a deposit, usually 10%, and contracts are exchanged. The sale is legally binding. There is no cooling-off period and no survey clause to renegotiate against.

Extended auction: about 8 to 12 weeks

An extended auction works more like a rolling auction. Instead of a few minutes of bidding on one day, the auction runs online over the course of a month, and rolls into a second or third month if the property has not yet sold. Buyers can bid at any point during the period, and near the deadline the clock usually extends by 15 minutes each time a fresh bid arrives.

Most properties sell within one to two months. Despite the name, an extended auction can be quicker than an on-the-day auction. The auction can end early if competitive bidding takes off within the first few days. Sometimes sales happen within one week. At the end of the auction contracts exchange, then completion follows four weeks later, or six to eight weeks if that was agreed at the outset.

Each property runs in its own auction, so you are not waiting for the next catalogue deadline, you start when you are ready. That makes an extended auction much easier to time around something else, whether that is grant of probate coming through, a tenant's notice period running out, or the timing of an onward purchase.

Most people weighing up an extended auction are also considering an estate agency sale, or have already tried one and found it did not work out. An extended auction is much closer to an estate agency sale than the on-the-day format is: nothing is rushed, and the property gets proper time on the market, which is also why the reserve can usually be set higher, at around 10% below market value. The difference is what happens next. Contracts exchange as soon as the auction ends, so there is no drawn-out negotiation afterwards in which the price gets chipped or the sale falls apart. It feels a bit more like an estate agency sale, but it works to auction rules.

Conditional auction: the slowest auction route

Your estate agent might have suggested an approach known as the "modern method of auction", which is a conditional auction. It is not an approach we generally recommend, but we have included it here for context.

With a conditional auction, the winning bidder does not exchange contracts when the auction ends. Instead, they pay a reservation fee, which buys them an exclusivity period of 28 days (sometimes 56) to decide if they want to proceed with their purchase. Only after that do contracts exchange, with completion following later still. The sale is not legally binding until exchange, so a conditional auction is closer to accepting an offer through an estate agent than to a true auction.

So a conditional auction takes considerably longer than an unconditional one, and for most of that time you have no binding sale. If the buyer pulls out you're back to square one, and depending on the auctioneer's terms you may not even keep the reservation fee. At Auction Link we only recommend unconditional auctions, whether on-the-day or extended.

How long until I get the money?

You receive funds from the sale on completion day, which is typically 28 days after exchange. That is when your solicitor is paid the balance of the purchase price and the sale is finished.

The deposit (usually 10%) is paid on auction day, but it does not come straight to you. It is held by the auctioneer or the solicitor as stakeholder and is set against the purchase price at completion. If you have a mortgage, that gets redeemed from the proceeds on completion, and the remainder is transferred to you, usually the same day or the next working day.

So the realistic answer for an on-the-day auction is around six to eight weeks from booking in, and for an extended auction eight to twelve weeks. If you need funds by a particular date, work backwards from it and pick your auction accordingly. It is one of the few sale methods where doing that is actually reliable.

How long am I tied in for?

Much less time than a typical estate agency contract, which often runs to an 8 to 16 week sole agency tie-in plus a notice period.

With an on-the-day auction you are committed to that particular sale. If the property does not sell you are generally free to decide whether to re-enter it into the next auction or withdraw. That said, you should check whether the auctioneer's terms include a post-auction period during which they can still claim commission on an introduced buyer.

With an extended auction the usual arrangement is a two month term plus a one month notice period. If the property has not sold after two months you can serve notice and withdraw at the end of the third, or simply let it roll on month by month until it does sell. Terms vary between auctioneers, so read them before signing, and ask us if anything is unclear.

What if it doesn't sell?

Auctioneers typically aim for around an 80% success rate, so most lots do sell, but it is worth knowing what happens to your timescale if your property does not sell.

With an on-the-day auction, a property that fails to reach its reserve price is announced as "unsold" or "available". In practice a good number of these sell shortly afterwards, because interested underbidders often approach the auctioneer in the days following the sale. Failing that, the auctioneer will invite you to re-enter it into the next auction, which will usually be three to six weeks later depending on their calendar.

An extended auction handles this more gracefully. If bidding closes below the reserve the auctioneer will normally offer you a choice: accept the top bid and exchange, or roll the auction on for another month to attract new bidders. Nothing is announced as unsold and no momentum is lost, which is a meaningful advantage of the format.

A failure to sell at auction almost always comes down to the reserve price being set too high. Our page on what price your house will sell for at auction goes into how reserves are set.

Can I speed it up, or slow it down?

Both, within limits, and it is worth knowing which parts of the timescale are fixed and which are flexible.

To go faster, the completion period is the most obvious lever. The standard 28 days can be shortened by agreement if both sides are ready, particularly where the buyer is a cash purchaser with no lending to arrange. Getting your legal pack prepared early helps too, as a pack that is ready and complete on the day the catalogue goes live gives buyers the full marketing period to review it. The absolute fastest route is an extended auction with a keenly set reserve, which can exchange within a week, though that is the exception rather than the rule.

To allow more time, you can set a longer completion at the outset, commonly six or eight weeks instead of four. Sellers do this for all sorts of reasons: waiting on grant of probate, arranging an onward purchase, or giving a tenant proper notice. Some sellers deliberately choose a longer completion because it widens the pool of bidders, particularly buyers who need to arrange finance, and a bigger pool can mean a better price.

The one thing you cannot change is the completion date once the hammer has fallen. It is written into the contract that both parties are now bound by, so set it before the auction, not after.

Frequently asked questions

Next steps...

Looking to see if auction can meet your deadline? Request a free pre-auction appraisal or call us on 0800 862 0206. For the full picture of how a sale works from start to finish, see our comprehensive guide to selling at auction.