Auction Finance: What to Have in Place Before the Hammer Falls
At a traditional property auction the contract exchanges the instant the hammer falls. There is no subject to finance clause, no cooling off period, and no polite mechanism for asking the seller to wait. You pay 10 percent of the price that afternoon and you complete 28 days later. Miss that date and the deposit is gone, and the seller can pursue you for the difference if the property resells for less.
Every bidder in the room understands that intellectually. A meaningful number of them still raise a hand before the auction finance exists, on the reasoning that a lender will surely find a way. Lenders often do. They also sometimes do not, and the ones who do move fastest are the ones who saw the property before the sale rather than after.
The whole skill in buying at auction is front loading. Do the work on the lot, the legal pack and the funding first, and the auction itself becomes the easy part.
Can I get a bridging loan for an auction property?
Yes, and for most auction lots a bridging loan is the only realistic funding route.
An auction bridging loan is short-term borrowing secured by a legal charge over the property you have just bought, arranged to complete inside the auction timetable and repaid from a sale or a refinance afterwards. Bridging lenders write this every week and the process is well worn.
The reason a bridging loan fits and a mortgage generally does not is partly speed and partly stock. Auction property is disproportionately property that a mortgage lender will not accept: a house with no kitchen, a flat with a short lease, a commercial unit with no tenant, a plot with consent and nothing built, a repossession sold with limited information. Bridging lenders take security on all of it, because they are pricing an asset and an exit rather than an income stream.
What you cannot do is start the funding conversation after the sale. Bridging loans complete in 10 to 21 days when the case is prepared, and preparation is the part that takes time. Approach a lender on day 2 of 28 with no title, no valuation and no exit and the timetable is already tight.
Why do property auctions break mortgage timetables?
A mortgage is built to be careful and an auction is built to be fast, and the two cannot be made to fit.
A mainstream residential or commercial mortgage runs through an affordability assessment, an underwriting queue, a valuation instruction, local authority searches and a conveyancing process that assumes a negotiated exchange date. Eight to fourteen weeks is normal. The lender can also withdraw its offer at any point before completion, which is survivable in a normal purchase and catastrophic in an auction purchase where you are already contractually bound.
Property auctions offer none of that flexibility. Exchange happens on the fall of the hammer. The 10 percent deposit leaves your account the same day. Completion is fixed by the contract in the legal pack, and 28 days is the standard, though some lots run 14 days and some run 56.
So the funding has to be capable of completing inside the shortest realistic window, and that means bridging finance, cash, or a term facility that has already been fully underwritten with the valuation done. The third of those is rare enough at auctions to ignore.
What does the legal pack tell you before you bid?
Everything that decides whether the finance is arrangeable, which is why it should reach your solicitor and your broker before the auction rather than after.
The contract and the completion period. Confirm whether you have 28 days or something shorter. A 14 day completion changes which lenders can realistically fund the purchase.
Title. Freehold or leasehold, registered or unregistered, and any restrictions, covenants or rights of way. Unregistered title is the single most common cause of an auction purchase completing late, because first registration takes legal work nobody budgeted for.
Lease details, if leasehold. Unexpired term, ground rent, service charge arrears. A lease with under 70 years left narrows the lender panel sharply and a short lease can rule out a residential mortgage exit entirely.
Searches. Some auction packs include them and some do not. Where they are missing, your solicitor may need indemnity insurance to hit the deadline, and the lender has to accept that.
Special conditions. This is where the costs hide. Buyer’s premium, contribution to the seller’s legal fees, and sometimes a requirement to reimburse the search pack. On a £180,000 lot these can add several thousand pounds that no bidder factored in.
Tenancies. An occupied property changes the valuation basis and the exit. A regulated tenancy in particular reduces value materially and limits which lenders will take the security.
Read the pack, price the special conditions into your maximum bid, and send it to whoever is arranging the auction finance. A broker can tell you within an hour whether a lot is fundable, and that hour is worth more than any amount of bidding strategy.
How is an auction purchase actually funded?
In three stages, and the sequencing matters more than the total.
The deposit, on the day. 10 percent of the purchase price, payable at the auction house by card or bank transfer. This is your own money. No bridging lender advances a deposit, because at that point there is no property to take security over.
The completion funds, by day 28. This is where the auction bridging loan lands. The lender advances against the property, your solicitor completes, and the charge is registered.
Your equity, in the middle. The difference between the purchase price and what the loan advances. Because bridging loans size against value and deduct fees and retained interest from the advance, the cash you need is more than the simple gap between price and loan.
Work it through. A residential lot bought at £200,000, valued by the lender’s surveyor at £200,000, funded at 75 percent loan to value, gives a gross facility of £150,000. Interest retained for 9 months at 0.7 percent is roughly £9,450, and an arrangement fee at 1.5 percent is £2,250, so the net advance is about £138,300. Against a £200,000 purchase price you have already paid £20,000 as the deposit, which leaves roughly £41,700 to find on completion, plus stamp duty, plus your legal fees.
Bidders routinely calculate the 25 percent and forget the rest. The number to plan around is the net advance, not the headline loan.
Can you use a bridging loan for auction lots nobody will mortgage?
That is precisely the case bridging finance was built for, and it is most of the auction market.
A residential property with no working kitchen or bathroom is unmortgageable under standard criteria. A flat above a takeaway is declined by a large share of residential lenders. A building with structural movement, a fire damaged terrace, a former pub, a plot with lapsed consent, a block of garages: all of these appear in auction catalogues constantly and none of them will get a mortgage offer in 28 days.
Bridging lenders will lend on them because the underwriting question is different. They ask what the property is worth today, what it will be worth once the work is done, and what repays the loan. If the answers are credible the deal funds.
The standard structure is a bridge into refurbishment into refinance. The auction bridging loan buys the property. The work makes it habitable and mortgageable. A buy to let mortgage or a sale then repays the bridge. That sequence has a name in the trade, and it is the reason a substantial proportion of auction lots end up in the hands of investors rather than owner occupiers.
Where the work is heavy, structural, or needs planning consent, the funding shape changes. A day one advance against the current value plus a staged works facility drawn against a schedule is what fits, and that is closer to refurbishment finance than to a plain bridge. Get that structure agreed before bidding, because retro-fitting a works tranche onto a completed purchase is slower and dearer.
What does auction bridging cost in interest and fees?
Bridging is quoted monthly. Across our lender panel auction bridging loans run from 0.55 percent to 1.0 percent a month over terms of 1 to 18 months, with residential security at the cheaper end and unusual or commercial property at the dearer end.
The fees on an auction purchase come in two layers, and bidders usually count only one.
Lender side: an arrangement fee of 1 to 2 percent of the loan across our lender panel, a valuation fee, the lender’s legal fees, and sometimes an exit fee of around 1 percent. On a £150,000 facility those fees commonly total £4,000 to £7,000.
Auction side: the buyer’s premium or administration fee charged by the auction house, a contribution to the seller’s legal costs where the special conditions require it, the search pack fee, and your own legal fees. Several thousand pounds again, and unlike the lender fees these are not deductible from any advance. They are cash on the day or shortly after.
Then stamp duty land tax at the applicable rate, which on additional property carries a surcharge and is payable within 14 days of completion.
So the honest cost of an auction purchase at £200,000 funded on a 9 month bridge is roughly £11,700 of interest and lender fees, several thousand of auction and legal fees, plus the stamp duty. That is the number to test your margin against, not the hammer price. Every figure here is indicative and is never an offer of finance.
What kind of property sells at auction, and what will lenders fund?
Auction stock is not random. The same property categories come round every catalogue, and each one funds differently.
Unmodernised residential property. The largest category by volume. A tired house or flat that needs a kitchen, a bathroom and rewiring. Every bridging lender on our panel will fund this property type, usually at 75 percent loan to value, and the exit is a sale or a buy to let mortgage once the property is habitable.
Probate and executor sales. Property sold quickly by an estate, often occupied for decades and priced to move. Straightforward auction finance, though the title can be unregistered and the legal work slower.
Repossessions and receiver sales. The lender or receiver sells the property with limited warranties and limited information. Auction finance is available and lenders read these packs carefully, because the seller gives fewer assurances about the property than a private vendor would.
Tenanted residential property. An investment property with a sitting tenant. The valuation basis changes, and a regulated tenancy can cut the value of the property materially. Fewer lenders, lower loan to value, and the exit is nearly always a refinance rather than a sale.
Commercial and semi-commercial property. Shops with flats above, small industrial units, former pubs, offices. Auction finance funds these at 65 to 70 percent loan to value across our lender panel because commercial property has a thinner buyer pool. The exit is usually a commercial mortgage once the property is let.
Land and development plots. Property with consent, property with lapsed consent, and bare land with none. Auction finance can hold a site while consent is pursued, but leverage is lower and a lender will want to see what the property becomes.
Property nobody can categorise. Garage blocks, chapels, car parks, a strip of land behind a terrace. These fund only where a lender can see a resale market for the property, and the loan to value drops accordingly.
Knowing which box your property falls into before you bid tells you what auction finance is available, at what leverage, and therefore how much cash you personally need on completion day.
Who uses auction finance, and for what property strategies?
Three groups dominate the room, and their use of auction finance looks quite different.
Refurbishment investors. They buy an unmodernised property, spend 8 to 16 weeks on the work, then either sell or refinance onto a buy to let mortgage. Auction finance is the purchase tool and the mortgage is the exit. This is the most common auction strategy in the country and the one bridging loans serve best.
Traders and flippers. They buy a property below market value, do light work, and sell inside 6 months. Here the exit on the auction finance is a sale, so the lender tests the resale price hard and applies its own discount to your view of the property.
Portfolio landlords and developers. They buy property at auction opportunistically to add to a holding, often several lots a year. For them auction finance is working capital: bridging loans buy the property fast, then a portfolio refinance moves several assets onto term debt at once.
There is a fourth group, smaller and more exposed, made up of first time buyers hoping to find a home cheaply. For an owner occupier the picture changes, because a bridging loan on a property you will live in is a regulated contract. Construction Capital is not authorised by the FCA, so where a case is a regulated activity we arrange it through lenders who hold the relevant FCA permissions. Anyone bidding on a property they intend to occupy should establish that before the sale rather than after.
Across all four, the discipline is the same. Decide what the property is for, decide what repays the loan, and only then decide what you will bid.
What are the downsides of a bridging loan?
Three, and anyone selling you auction finance without naming them is not being straight with you.
Cost. Bridging is expensive money measured against a mortgage. Held for 12 months at 0.85 percent, a bridging loan costs over 10 percent of the balance in interest before fees. It is priced for a job of defined length, and the moment the job takes longer the economics move against you.
The exit risk. Bridging loans are repaid by an event. If the sale does not happen or the refinance is declined, the options are an extension at a higher rate, a default rate that steps up sharply, or possession. On an auction property that risk concentrates, because you have bought something that may be harder to sell than you assumed.
Your equity is committed early. The 10 percent deposit is gone on the day, before any lender has confirmed anything in writing. Bidding without arranged finance puts that money at risk in a way no other property purchase does.
Set against those, the alternative for most auction lots is not a cheaper loan. It is not owning the property. That is the comparison that matters, and it is why bridging finance and property auctions grew up together.
Are bridging loans and auction finance the same product?
Nearly, and the distinction is worth ten minutes because it changes who you ring.
Auction finance is a use case rather than a separate product. The underlying facility is a bridging loan: short-term borrowing secured by a legal charge over property and repaid from a defined exit. What the auction label signals is that the bridging loan has been set up to complete inside an auction timetable, which changes how the lender behaves rather than what the loan is.
Three practical differences follow. Lenders offering auction finance will issue an indicative decision on a property before the sale, so you can bid knowing where you stand. They will instruct a valuation immediately rather than after a full underwrite. And their solicitors are used to running title work in parallel with the auction purchase rather than in sequence.
Bridging loans arranged outside an auction do not need any of that. A chain break bridge or a refinance can take six weeks without anyone minding. So while all auction finance is bridging finance, plenty of bridging loans have nothing to do with property auctions at all.
The reason this matters when you are choosing a lender is that not every bridging lender is set up for auctions. Some are excellent on complex property and slow on process, which is fine on a negotiated purchase and useless on day 28. When we place an auction purchase across our panel of over 100 lenders we are filtering for delivery speed first and rate second, which is the opposite of how we would approach the same property on a longer timetable.
One more distinction is worth naming. Some brokers and lenders use auction finance to mean a pre-approved facility agreed before you attend, sized against your budget rather than against a specific lot, so you can bid at several property auctions in the same month. That arrangement is genuinely useful for anyone buying regularly, and it converts to a normal bridging loan against whichever property you actually win. Ask whether an indicative offer is lot specific or facility level, because the two behave very differently on the day.
How much can you borrow against an auction property?
Loan to value against the lender’s own valuation, and the second half of that sentence catches people out.
We arrange bridging loans up to 75 percent loan to value on residential security and 65 to 70 percent on commercial. But the percentage applies to the surveyor’s figure, not the hammer price, and at auction those can diverge in both directions.
Buy a lot at £160,000 that the surveyor values at £200,000 and most lenders will still lend against the lower of price and value, so you are borrowing 75 percent of £160,000. Buying below market value does not usually let you borrow more on day one, though some lenders will lend against open market value after a short ownership period, which matters for a quick refinance.
Buy at £240,000 a lot the surveyor values at £200,000 and the loan drops to 75 percent of £200,000. You have paid £40,000 over the funding basis and every pound of it comes from your own pocket. This is the auction risk nobody discusses, and it is the reason to form your own view of value before the sale rather than trusting the guide price.
Guide prices are marketing. The reserve is the number that matters and it is not published. Where a lot is being sold by a receiver or a lender, expect a reserve set close to a professional valuation rather than an optimistic one.
What happens if the finance is not ready on day 28?
Nothing good, and the sequence is worth knowing before you are in it.
You are in breach of contract. The seller can serve a notice to complete, typically giving 10 working days, and interest accrues on the outstanding balance at the contract rate throughout. If you still cannot complete, the seller rescinds, keeps your 10 percent deposit, resells the property and can pursue you for any shortfall plus costs.
The practical options when a completion is slipping are limited but real. Ask the auction house early, because sellers occasionally agree a short extension for a fee where the delay is documented and the funds are clearly coming. Move to a faster lender, which a broker with a panel can do inside a week where the case is clean. Or bring in short-term private capital at a higher rate to complete on time and refinance onto sensible bridging afterwards, which is expensive and still cheaper than losing the deposit.
All three are damage control. The reliable answer is to have an indicative offer before you bid, the solicitor instructed before the auction, and the valuation instructed the day after.
How do you prepare before a property auction?
Work backwards from completion day and the list is short.
Read the catalogue and shortlist properly, then get the legal pack for every lot you might bid on. Send those packs to your solicitor and your broker at the same time. Form your own view of value, ideally from a visit, and price the work with a contingency you would defend to a lender.
Get an indicative funding offer in writing against the specific lot, including the loan amount, the rate, the fees and the net advance. Confirm the completion period and tell the lender what it is. Confirm your solicitor has done bridging work recently and can act on that timetable.
Set a maximum bid that includes the auction fees, the special conditions, the stamp duty and the finance costs, and write it down. Then do not exceed it, because the arithmetic that made the lot work does not survive an extra £15,000 of enthusiasm.
Finally, have identification, proof of funds and the source of your deposit ready to send the same day. Anti money laundering checks are the quiet cause of a great many late completions and they are entirely avoidable.
What does the modern method of auction change?
More than people expect, and it is worth checking which format a lot is being sold under.
Under the modern method, sometimes called conditional auction, the winning bidder pays a non-refundable reservation fee rather than a 10 percent deposit and does not exchange contracts on the day. Exchange typically follows within 28 days and completion within a further 28, so the total window is around 56 days.
That extra time changes the funding options. A mortgage becomes possible on a standard property, though still tight, and bridging finance becomes considerably more comfortable. It does not make the purchase risk free: the reservation fee is usually non-refundable and can run to several percent of the price, so walking away still costs real money.
The trap is assuming every lot in a catalogue uses the same method. Traditional and modern lots appear in the same sales, and the difference between exchanging on the hammer and exchanging in 28 days is the difference between needing finance arranged and needing finance available. Check the particulars for each lot rather than the sale as a whole.
If you have a catalogue in front of you and a lot in mind, we arrange auction finance before you bid across a panel of over 100 lenders, and we will read the legal pack with you rather than after the event. Where the work after completion is the main event, refurbishment finance is the better structure. Where the lot is tenanted commercial property you intend to hold, the exit is commercial mortgages.
Construction Capital is a trading name of Lenzie Consulting Ltd, registered in England and Wales, company number 08174104. We are a commercial finance broker and introducer, not a lender, and we are not authorised by the FCA. Where a case is a regulated activity we arrange it through lenders who hold the relevant FCA permissions. Rates, fees and terms are indicative, vary by lender and deal, and are never an offer of finance. Written by Matt Lenzie.
Across the Construction Capital network
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