Buying property at auction

Buying at auction can be a good way to secure a property quickly, sometimes below market value. But it works very differently from a standard purchase and the risks are real if you go in unprepared.

At a traditional auction, contracts exchange the moment your bid is accepted. There is no cooling-off period and no going back. If you pull out, you lose your deposit. The preparation you do before auction day matters as much as what happens on the day itself.

This guide covers how the process works, what to look for in the legal pack, what it costs and what can go wrong.

Not all auctions work the same way and the legal process differs between them. It is worth knowing which type you are dealing with before you do anything else.

Traditional auction

At a traditional (unconditional) auction, contracts exchange immediately when your bid is accepted. You pay a 10% deposit on the day and must complete within 28 days. All finance must be in place before you bid — there is no time to arrange a mortgage after winning.

Traditional auctions tend to attract experienced investors and cash buyers for this reason.

Modern method auction

The modern method (also called a conditional auction) gives buyers more time. You pay a reservation fee — typically around 5% — when your bid is accepted, then have 28 days to exchange contracts and a further 28 days to complete, 56 days in total.

This extra time makes it more accessible to buyers who need a mortgage, though you still need to be confident finance is achievable before you commit to the reservation fee. It is non-refundable if you pull out.

Online auction platforms tend to use the modern method. Check the auction particulars carefully — it will always be clear which type applies.

The work you do before the auction is what determines whether a purchase goes well. Turning up on the day without having done this is where things go wrong.

Get the legal pack reviewed

Every auction property comes with a legal pack — a set of documents prepared by the seller's solicitor that prospective buyers can review before bidding. Getting a conveyancing solicitor to review it is the single most useful thing you can do before you bid.

The pack typically contains:

• Title deeds and title register (confirming ownership and any restrictions on the property)
• Conveyancing searches (local authority, environmental, drainage)
• The Property Information Form (TA6)
• Special conditions of sale
• Leasehold documents if applicable, including service charge history and ground rent information

The special conditions are particularly worth scrutinising. They can contain obligations or liabilities that are not obvious from the property details — things like requirements to reimburse the seller's search costs, unusual access arrangements or title restrictions that affect what you can do with the property.

Your solicitor will read the pack in full, identify any issues and explain what they mean in practice. If documents are missing from the pack — which happens — they will request them from the seller's solicitor before auction day. Our auction conveyancing solicitors cover the full process from legal pack review through to completion.

Arrange a survey

For any property you are serious about, get a RICS survey done before auction day. At a traditional auction you will not have the option to pull out after winning without losing your deposit, so discovering a structural problem or serious defect after the fact leaves you with very limited options.

A survey costs a few hundred pounds. If it reveals something significant that leads you not to bid, it has done its job.

If you are buying with a mortgage, your lender will require a valuation at minimum and may require a more detailed report depending on the property type and age.

Sort your finances

For a traditional auction, all finance must be confirmed before you bid. You need at minimum a mortgage agreement in principle (AIP) in writing from your lender. Some lenders will not lend on auction properties at all, so speak to yours early and be clear about what you are planning to buy.

Cash buyers should make sure funds are readily accessible and that they have confirmation they can access them within the completion deadline.

For a modern method auction the timeline is more forgiving, but you still need to be confident finance is achievable before you commit to the reservation fee.

Research the property and the local market

Check what similar properties in the area have sold for using the UK House Price Index. Set a maximum bid before the auction and do not move it on the day — it is easy to get drawn into competitive bidding beyond what the property is worth.

Also check whether there is a buyer's premium or admin fee on the lot you are interested in. This is charged by the auctioneer on top of the purchase price and will be listed in the catalogue. Factor it into your maximum bid.

Once you have registered and the bidding starts, keep a clear head. Know your maximum bid, stick to it and do not let the atmosphere push you past it.

If your bid is successful at a traditional auction, you sign the contract and pay the 10% deposit immediately. At a modern method auction you pay the reservation fee and the exchange process follows over the next 28 days.

Either way, instruct your conveyancing solicitor immediately after winning so they can begin the post-auction completion work without delay.

The purchase price is only part of what you will pay. Budget for all of the following:

• Deposit or reservation fee: 10% of the purchase price at a traditional auction, paid on the day. A reservation fee of approximately 5% at a modern method auction, also paid on the day.
• Auctioneer's admin fee or buyer's premium: typically £200-£500 or a percentage of the purchase price, subject to VAT. Check the catalogue — it varies between auction houses and can be property-specific.
• Conveyancing fees: your solicitor's charges for the legal pack review before the auction and for completing the purchase after. Get a fixed fee quote so you know what you are committing to.
• Survey: a few hundred pounds for a RICS survey, more for a full structural survey on older or unusual properties.
• Stamp Duty Land Tax: payable on properties over £125,000 for residential purchases. Factor this into your budget before you bid, not after.
• Seller's search costs: the special conditions of sale may require you to reimburse the seller for the cost of obtaining conveyancing searches. Check the legal pack.
• Mortgage arrangement fees: if buying with a mortgage, your lender may charge arrangement or valuation fees on top of the purchase costs.

Buying at auction carries risks that a standard purchase does not. They are worth understanding clearly before you bid.

You are legally committed the moment you bid successfully

At a traditional auction there is no cooling-off period. Problems discovered after the sale — title issues, structural defects, missing documents — are yours to deal with. This is why reviewing the legal pack and getting a survey done beforehand is so important.

Properties are sold as-is

There are no seller's warranties or guarantees in the way there might be in a standard sale. What you see in the legal pack and the survey is what you get.

The legal pack may be incomplete

Not every legal pack is well-prepared. Missing searches, absent title documents or unresolved restrictions are all things a solicitor may find when reviewing the pack. If documents are missing, your solicitor can request them — but this needs to happen before auction day, not after.

Leasehold properties carry additional complexity

If the property is leasehold, the pack should include a leasehold information pack covering the lease length, ground rent, service charges and any planned major works. Short leases (below 80 years) and high or escalating ground rents can affect mortgageability and future saleability. These are things your solicitor will check.

Finance can fall through

If you are buying with a mortgage and your lender withdraws their offer or the property fails the valuation, you may be unable to complete. At a traditional auction, this means losing your deposit. Speak to your lender in detail before bidding on anything.

There is no legal requirement, but buying without one is a significant risk. The legal pack is not light reading — it requires someone who knows what they are looking at to identify problems, and the problems that matter most are often in the detail.

A specialist auction conveyancing solicitor will review the legal pack before you bid, flag anything that should affect your decision, and handle the completion after you win. Given the timescales involved, instructing someone who deals with auction transactions regularly makes a real difference.

Call us on if you need any advice or guidance.