Auction Conveyancing UK: Buyer & Seller Guide 2026

Overview

Auction conveyancing is the legal process for transferring ownership of a property that is bought or sold through an auction, whether in person, online, or via a modern method of auction. The core legal steps are the same as any sale (checking title, raising enquiries, handling searches, completing the transfer) but the order and timing are very different.

In a standard sale, you would typically review the legal paperwork after your offer is accepted. At auction, everything flips: the legal pack is published before the sale, and any bidder is expected to have read it, understood it, and accepted whatever it contains.

When the hammer falls, contracts are exchanged on the spot. A deposit (often 10%) is payable immediately, and completion usually follows within 20 or 28 days, depending on the auction terms. There is no cooling-off period, no subject-to-survey clause, and no room to renegotiate. Getting the legal review done before bidding is therefore not optional, it is the whole point.

Key steps

1. Review the legal pack before bidding. Every auction property comes with a legal pack prepared by the seller's solicitor. It typically contains the title documents, special conditions of sale, searches, replies to standard enquiries, and any leasehold information. Have an auction-experienced solicitor read through it and flag anything unusual, such as restrictive covenants, missing planning permissions, or buyer-borne fees.
2. Sort your funding in advance. Standard mortgage applications rarely complete inside a 28-day auction window, so most buyers use cash, bridging finance, or a pre-approved auction mortgage product. Speak to a broker early, confirm what is realistic for the property type, and make sure funds will be available to meet completion, not just the deposit on the day.
3. Bid and exchange at the fall of the hammer. When your bid wins, contracts exchange immediately. You will sign the memorandum of sale, pay the deposit (usually 10%, subject to a minimum), and may also owe auction fees or a buyer's premium. From this point the sale is legally binding and pulling out means losing your deposit and potentially facing further claims.
4. Complete within the auction deadline. The contract will specify the completion date, commonly 20 or 28 days after exchange. Your solicitor handles the transfer of funds, final title checks, stamp duty land tax (or LTT in Wales), and registration at HM Land Registry. Missing the deadline can trigger interest, penalties, or even forfeiture of the property and deposit.
5. Register ownership and settle outstanding obligations. After completion, your solicitor submits the SDLT or LTT return, pays any tax due, and applies to register you as the new owner at HM Land Registry. You should also deal with practical handovers: utilities, insurance from the exchange date onwards, and any management company notifications if the property is leasehold.

Common questions