Conveyancing

Auction Conveyancing Solicitors in Cardiff.

Bidding at a property auction in Cardiff or South Wales? At the fall of the hammer you're committed, so the legal checks have to happen first. We review the legal pack and get you ready to bid with confidence.

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Auction Purchases
About this service

Auction purchases from our Cardiff office

If you are buying at a property auction in Cardiff or the South Wales valleys, our conveyancing solicitors review the legal pack before you bid and handle the purchase through to completion. How buying at auction works, the binding hammer, the deposit, the tight completion deadline, is set out in full on our auction purchases page. Here we focus on what is local.

What should you check in a South Wales legal pack?

Because the fall of the hammer is a binding exchange, all the legal checking has to be done beforehand, and for a South Wales lot two things deserve particular attention. We look hard at the local authority search (from Cardiff Council, or the relevant valleys authority) and, very often, a coal-mining and ground-stability search, because much of the South Wales coalfield carries a mining legacy that can affect value and mortgageability. At auction you buy the property as it is, with no comeback against the seller, so anything in the pack becomes your problem once you have won.

When do you pay Welsh property tax?

On completion, usually within about 28 days of the auction, Land Transaction Tax is payable in Wales, rather than the stamp duty charged in England; our buying a property in Cardiff page explains how it works. Budget for it alongside your deposit, the auctioneer’s fee, and your legal and search costs, because the true cost of an auction purchase is usually more than the hammer price. MoneyHelper has a guide to buying a home at auction.

How our Cardiff team helps

We act for auction buyers across Cardiff and South Wales, reviewing legal packs before the auction, flagging anything that affects value or mortgageability, and handling the purchase against the clock once you have won. We will explain whether you are in a traditional or modern-method auction, as the deadlines differ. Because conveyancing is a regulated service, we set out our fees in full on our conveyancing pricing page. If the lot is a flat in a taller building, our high-rise conveyancing in Cardiff checks also apply.

At auction there's no going back once the hammer falls, so we do the homework on the legal pack before you raise your hand.

Our approach
How we work

Clear advice. Practical next steps.

Every auction purchases matter is different. We start by understanding your situation before we recommend an approach.

We won't push you toward a process that doesn't fit. We won't drag things out. And we'll always tell you what something will cost before we start it.

  • A dedicated specialist for your matter, backed by the wider Robertsons conveyancing team
  • Transparent pricing — clear written costs before any work begins
  • Plain-English advice — no jargon, no surprises
  • Offices across South Wales and the South West
What auction purchases clients say

Real stories from real clients

★★★★★
“Our conveyancing was handled very well by the Rhianne Mace team & Georgina Williams. They assisted as much as they could to arrange completion.”
Richard Hill Cardiff · Conveyancing
★★★★★
“Mr Robin Street was very helpful and understanding about a family matter, keeping both me and my sister informed at every step, and was also very easy to contact if we had anything we weren't sure about.”
Nigel Haynes Cardiff · Conveyancing
★★★★★
“I was first greeted at the practice by Natalie Wride. Natalie made the whole process of selling my property very easy indeed. There was a time constraint involved but this did not affect the high quality of work.”
Rosalind Kidd Barry · Selling a property
Your specialists

Who would be looking after you?

Some of your auction purchases team at Robertsons.

Common questions

Questions clients ask us about auction purchases

Properties sold at auction often have complications that make them unsuitable for the open market — which is not always obvious from the auction listing. Particular caution is warranted with: properties with very short leases or absent freeholders; properties subject to sitting tenants or occupiers with security of tenure; properties with structural problems, subsidence, or Japanese knotweed; properties with restrictive covenants that prevent development or change of use; properties on estates with management company issues or significant service charge arrears; and properties with planning enforcement notices. None of these issues prevents purchase — but they need to be identified, understood, and priced in before you bid, not discovered afterwards.

Obtaining a standard residential mortgage on an auction property is possible in principle, but the 28-day completion deadline makes it extremely difficult in practice. A formal mortgage offer requires a lender's valuation and underwriting process that typically takes longer than 28 days to arrange from scratch. Most auction buyers — particularly for properties needing work — use bridging finance to complete within the required timeframe and then refinance onto a standard mortgage once the property is in a mortgageable condition. If you intend to use a mortgage, speak to a broker before the auction to understand what is available and how quickly an offer could be issued. Relying on a mortgage you have not yet secured before bidding is a significant financial risk.

At a traditional auction, no — pulling out after the hammer falls means you are in breach of contract. The consequences are serious: you forfeit your full deposit, the seller can remarket the property, and if it sells for less than your bid, the seller can pursue you for the difference plus their costs. In practice, litigation over auction defaults does occur. Under the modern method of auction, you can withdraw after paying the reservation fee — but the reservation fee is non-refundable. The only scenario in which a buyer might successfully rescind an auction contract is if the seller has misrepresented the property or there is a fundamental defect in title that was not disclosed — but these are narrow grounds and require legal advice immediately.

Buying at auction is fundamentally different from a standard property purchase in one critical respect: exchange of contracts happens in the auction room the moment the hammer falls. There is no negotiation period, no cooling off, and no ability to withdraw without losing your deposit and facing further liability. All legal due diligence — reviewing the legal pack, checking title, raising any concerns — must be completed before you bid, not after. Completion typically follows within 28 days. The speed and commitment involved make auction purchases higher risk than standard purchases, but they can offer genuine value — particularly for properties that need work or have complications that deter mainstream buyers.

Traditional auctions typically require completion within 28 days of the auction date — this is set out in the special conditions of the contract in the legal pack and is not negotiable. Some contracts specify a shorter period. The modern method of auction usually allows a longer period — typically 56 days — but involves an initial reservation fee and exchange within 28 days, with a further period to complete. The fixed completion deadline is one of the most challenging aspects of auction purchases: arranging finance, carrying out any remaining checks, and completing the legal work all has to happen within that window. Missing the completion deadline has serious financial consequences.

At a traditional auction, you will be required to pay a deposit — typically 10% of the purchase price — on the day, immediately after the hammer falls. You must have this available in cleared funds; a personal cheque may not be accepted. The deposit is non-refundable if you fail to complete. Some auctions accept a lower deposit in certain circumstances, but 10% is the standard. For the modern method of auction, a reservation fee — usually a fixed amount or a percentage of the purchase price — is paid upfront to secure the property, followed by the contract deposit on exchange. Budget for the deposit as part of your total auction costs before you bid.

Beyond the purchase price and deposit, auction buyers should budget for: a buyer's premium or administration fee charged by the auctioneer — typically 1.5% to 2.5% plus VAT on top of the purchase price; stamp duty land tax or land transaction tax on the full purchase price; solicitor's fees for reviewing the legal pack and handling the purchase; search fees if searches are needed rather than search insurance; survey or structural inspection costs; and any remedial works if the property needs renovation. For properties purchased with bridging finance, arrangement fees and monthly interest must also be factored in. The true cost of an auction purchase is frequently higher than the hammer price — budgeting carefully before you bid is essential.

Yes — at a traditional property auction, the fall of the hammer constitutes exchange of contracts. You are immediately and legally bound to purchase the property on the terms of the contract in the legal pack, at the price you bid. There is no cooling-off period, no ability to withdraw, and no further negotiation. You must pay the deposit — usually 10% of the purchase price — on the day, and complete within the timeframe set out in the contract, typically 28 days. If you fail to complete, you forfeit your deposit and the seller can pursue you for any further losses. This is why all due diligence must happen before the auction, not after — there is no opportunity to change your mind once you have won the bid.

The modern method of auction (MMoA) — also called conditional auction — is an online auction format that differs from traditional auction in its legal structure and timeframes. Rather than exchanging contracts immediately on the fall of the hammer, the winning bidder pays a non-refundable reservation fee and enters a reservation agreement giving them an exclusivity period — typically 28 days — in which to exchange contracts, followed by a further period of around 28 days to complete. This longer timeline makes it possible to arrange a mortgage, but the reservation fee is lost if you do not proceed. The legal pack should still be reviewed before bidding. MMoA has become increasingly common with online auction platforms, and buyers should understand which format they are entering before bidding.

Have a question that isn't covered here? Speak to one of our auction purchases specialists directly.

Get started with our auction purchases team

Confidential, no pressure, and we'll explain what's involved before you commit to anything.