Buying a Property at Auction
Auction inverts the usual order: you commit first, at the fall of the hammer, and there is no going back. That one fact drives everything about how you must prepare.
The Short Version
- The hammer exchanges contracts: you are bound instantly, with no cooling-off
- Traditional auctions typically require completion within 28 days
- Have a solicitor review the legal pack before you bid, never after
- Finance must be ready; some auction lots are unmortgageable as they stand
- The modern method of auction gives longer but charges a non-refundable fee
- Do all due diligence before the auction: afterwards is too late
Why auction is different
Buying at auction inverts the usual order of a property purchase. In a normal sale you do your legal checks, then commit. At auction you commit first, the fall of the hammer forms a binding contract, and there is no going back. That single fact drives everything else about how you must prepare. Auctions can offer genuine value and speed, but they punish the unprepared severely.
The binding moment
At a traditional property auction in England and Wales, when the hammer falls you have exchanged contracts. You immediately pay a deposit, typically 10%, and you are legally committed to complete, usually within 28 days. There is no cooling-off period and no "subject to survey" or "subject to mortgage". If you cannot complete, you lose your deposit and can be pursued for further losses.
Scotland has its own auction (or "roup") practices, less common for residential property, but the same principle of immediate binding commitment applies. The Scottish concept of concluded missives means an auction purchase binds you just as firmly.
The legal pack: read it before you bid
For each auction lot the seller provides a legal pack: the title documents, searches, special conditions of sale, leases where relevant, and other key papers. This is the single most important document in an auction purchase, and you must have a solicitor review it before you bid, not after. The legal pack can contain nasty surprises:
- Onerous special conditions, including making the buyer pay the seller's costs
- Short leases, ground-rent problems or restrictive covenants
- Missing or defective title
- Tenants in place, sometimes with protected tenancies
- Obligations to pay arrears of service charge or ground rent
- Access, rights-of-way or boundary issues
Because you cannot renegotiate after the hammer, anything hidden in the pack becomes your problem the moment you win. Paying a solicitor to review it before bidding is essential, even though you might review several packs for properties you do not end up buying.
Finance must be ready
With completion typically due in 28 days, you cannot rely on a standard mortgage application timeline. Your options are:
- Cash: the simplest, and common at auction
- A mortgage arranged in advance: with a lender who can complete within the deadline, and ideally an agreement in principle before you bid
- Bridging finance: fast but expensive, sometimes used to hit the deadline and then refinanced onto a normal mortgage
Bear in mind that some auction properties (those in poor condition, or with the title issues that brought them to auction) are unmortgageable in their current state, which is precisely why they are being sold this way. Confirm your finance works for the specific property before you bid.
The modern method of auction
Alongside traditional auctions, a modern method of auction (also called conditional auction) has grown, often run online over a period of days. Here the winning bidder usually pays a non-refundable reservation fee and then has a longer period, commonly around 56 days, to exchange and complete, which allows time for a normal mortgage. This is more forgiving than the traditional method, but the reservation fee is at risk if you do not proceed, and the terms need just as careful reading. Do not assume a "modern" auction works like the traditional one.
Costs to factor in
- The deposit on the day (typically 10%)
- An auction or administration fee, sometimes substantial
- Solicitor's fees for reviewing legal packs, including for lots you do not win
- Property tax (SDLT, LBTT or LTT) as on any purchase
- The cost of finance, especially if bridging
- Repair and renovation costs: auction properties often need work
Is auction right for you?
Auction can suit cash buyers, investors, and anyone comfortable with risk and quick decisions, and it can deliver real value. It is a poor fit for anyone who needs a long mortgage timeline, wants the safety of surveying and negotiating before committing, or cannot absorb the loss of a deposit if something goes wrong. The golden rule is simple: do all your due diligence (legal pack, survey, finance and a firm maximum price) before the auction, because afterwards is too late.
Common Questions
Frequently Asked Questions
Is buying at auction legally binding?
Yes, and immediately. At a traditional property auction the fall of the hammer exchanges contracts: you pay a deposit, usually 10%, on the day and must complete, typically within 28 days. There is no cooling-off period and no subject-to-survey or subject-to-mortgage protection. If you cannot complete you lose your deposit and can be pursued for further losses. This is why all due diligence must be done before you bid.
What is an auction legal pack?
It is the bundle of documents the seller provides for each lot: title documents, searches, special conditions of sale, any leases and other key papers. It is the most important document in an auction purchase, and you must have a solicitor review it before you bid. Legal packs can hide onerous conditions, short leases, covenant problems, sitting tenants or obligations to pay arrears, all of which become your problem the moment you win.
Can I get a mortgage for an auction property?
Sometimes, but you must arrange it in advance with a lender who can complete within the roughly 28-day deadline, and ideally have an agreement in principle before bidding. Cash and bridging finance are also common. Be aware that some auction properties are unmortgageable in their current condition, which is often why they are at auction, so confirm your finance works for the specific property before you bid.
What is the modern method of auction?
It is a conditional auction, often run online over several days, where the winning bidder pays a non-refundable reservation fee and then has a longer period, commonly around 56 days, to exchange and complete. This allows time for a normal mortgage, making it more forgiving than the traditional method. But the reservation fee is at risk if you do not proceed, and the terms need equally careful reading, so do not assume it works like a traditional auction.
Keep Reading
Related Guides and Pages
Property Searches
What the searches in a legal pack reveal.
Indemnity Insurance
For the title defects auction lots often carry.
Do You Need a Survey?
Why surveying before an auction is essential.