Buying Property at Auction: The Legal Pack and the Fall of the Hammer

Auctions can be a great way to buy — but they are unforgiving. In a traditional auction you are legally committed the moment the hammer falls, with no cooling-off period. That's why the legal work has to happen before you bid, not after. Get that right and an auction purchase can be quick and clean.

Traditional vs Modern Method

There are two very different processes, and it matters which one you're in:

• Traditional (unconditional) auction. Contracts exchange immediately on the fall of the hammer. You pay a 10% deposit on the day and typically complete within 28 days. This suits cash buyers, because there's little time to arrange a mortgage.
• Modern method (conditional) auction. Winning the lot secures you an exclusive period via a non-refundable reservation fee. You then usually have 28 days to exchange and a further 28 days to complete — around 56 days in total, which is designed to work for buyers who need a mortgage.

The Reservation Fee (Modern Method)

Under the modern method, the reservation fee is typically a few per cent of the price plus VAT, often with a minimum of several thousand pounds. Two things catch buyers out: it's non-refundable if you pull out, and it's added to the purchase price for Stamp Duty, so your SDLT is calculated on a higher figure.

The Auction Legal Pack

The legal pack is the bundle the seller's solicitor prepares, usually released a few days before the auction. It typically contains the title register and plan, the EPC, searches, the property information form, and — crucially — the special conditions of sale.

This is where the risk sits. The pack forms part of the contract, so if it contains restrictive covenants, unusual special conditions (for example, that the buyer pays the seller's legal and search fees, or must complete in 14 days), you are treated as having accepted them on the fall of the hammer — whether or not you read them. There is no going back.

Why the Legal Review Must Come First

Because there's no cooling-off period, the legal pack needs reviewing before you bid — ideally a couple of weeks ahead, so there's time to raise enquiries. We check the title, flag onerous special conditions and hidden costs, confirm what searches have (and haven't) been done, and tell you plainly what you'd be committing to. That way, when the hammer falls, there are no surprises.

How Bonsai Law Can Help

We act on sales and purchases at auction, where turnarounds are very tight. We review the legal pack before you bid, raise the enquiries that matter, and then drive completion to the deadline once the hammer falls. If you're thinking of buying or selling at auction, get in touch early — the sooner we see the legal pack, the safer your bid.