Buying commercial property at auction

Buying commercial property at auction is the purchase of a unit, estate or yard through a public bidding process where the fall of the hammer creates a binding, exchanged contract. It is a fast and transparent route to ownership, and a steady share of industrial stock, vacant units, short-let investments, receivership sales and buildings that need work, reaches the market this way through houses such as Acuitus, Allsop and Savills. The speed that makes auctions efficient is also what catches people out: there is no cooling-off period, no renegotiation and no time to put diligence right once the hammer falls.

This guide covers how a commercial auction works, the legal pack and the diligence that has to precede a bid, the fees and the 10 percent deposit, how to fund a purchase against the auction clock, the pitfalls that catch first-time bidders, and the modern reality that most lots now sell online rather than in a room. It sits below our pillar guide on how to buy an industrial unit, which covers the wider purchase process. We arrange the finance behind auction purchases as a broker and introducer; we are not a lender, an auctioneer or a solicitor, and nothing here is financial, legal or tax advice.

How does buying commercial property at auction work?

A commercial auction works to a fixed timetable that protects the seller and disciplines the buyer. The lot is catalogued and given a guide price, the legal pack is published online, and viewings are arranged in blocks before the sale. On the day, bidding runs up from the auctioneer's opening figure until it passes the seller's confidential reserve and reaches the highest bidder. On the fall of the hammer the successful bidder is contractually committed: contracts exchange immediately, the deposit is payable straight away, and completion follows on the date set in the conditions, conventionally 20 working days, though some lots run shorter or longer.

The guide price and the reserve are different numbers and it pays to understand both. The guide is a marketing figure indicating roughly where the auctioneer expects bidding to start, and it can be moved as interest builds. The reserve is the confidential minimum the seller will accept, set no more than around ten percent above a single-figure guide under the conduct rules most reputable houses follow. A lot will not sell below its reserve, which is why some lots pass in unsold and can then be bought by private treaty afterwards.

1. Catalogue and legal pack published

   The lot appears with a guide price and a downloadable legal pack of title, searches, leases and special conditions. Read the pack the day it lands.

2. View and investigate

   Inspect the unit, commission any survey, and have your solicitor raise and resolve every query on the pack. All diligence happens before the sale.

3. Arrange finance in principle

   Confirm how the purchase will be funded and get terms agreed before you bid, because the timetable will not wait for a fresh application.

4. Register and bid

   Register with identification and proof of funds, then bid in the room, online, by phone or by proxy up to your ceiling.

5. Exchange on the hammer

   If you win, contracts exchange instantly. You sign the memorandum of sale and pay the deposit there and then.

6. Complete on the set date

   Pay the balance and complete, usually within 20 working days. Miss it and you risk losing the deposit and more.

The structure rewards preparation and punishes improvisation, which is the opposite of a private treaty sale where diligence and negotiation run after an offer is accepted. Treat the bidding as the last and shortest step of the process, not the first.

What is in the legal pack and why does it matter?

The legal pack is the bundle of documents the seller's solicitor assembles for the lot, and at auction it carries decisive weight because the buyer takes the property as it stands. A typical pack contains the title register and plan, the searches, any leases and tenancy schedule, replies to standard commercial property enquiries, planning documents and the special conditions of sale. On industrial lots it should also reveal the use class position, any restrictive covenants or access rights over the yard, and environmental information, because industrial land carries genuine contamination history that a buyer inherits.

The special conditions are the part that most often costs money. Sellers routinely use them to pass their own costs to the buyer: the auctioneer's fee, the seller's legal fees, search costs, apportioned ground rent or service charge, and sometimes an obligation to pay the seller's outstanding arrears. A lot with a tempting guide can carry several thousand pounds of additional buyer obligations buried in the special conditions, so they must be read line by line and priced into your ceiling.

Send the legal pack to a commercial property solicitor who works on industrial transactions before you commit a penny to diligence, let alone to a bid. The fee for reviewing a pack on a lot you do not buy is the cheapest insurance in the whole process, and the buyers who skip it are the ones who supply the cautionary tales.

What are the fees and deposit for a commercial property auction?

The hammer price is never the whole cost. On the day, the buyer pays a deposit, conventionally 10 percent of the purchase price subject to a stated minimum, and a buyer's administration or fee that most houses now charge on top. Around the deal sit the usual purchase costs that apply whether you buy at auction or not: stamp duty land tax, legal fees, search fees, survey costs and any lender fees. The special conditions can then add seller costs passed across, as the previous section described.

What a commercial auction purchase costs beyond the hammer price (illustrative)

Cost	When it falls due	Typical scale
Deposit	On the fall of the hammer	10 percent of the price, subject to a minimum
Buyer's administration fee	On exchange, set by the auction house	A fixed sum or small percentage stated in the conditions
Stamp duty land tax	On completion	UK non-residential bands: 0 percent to £150k, 2 percent £150k to £250k, 5 percent above
Legal and search fees	Through the transaction	Buyer's own solicitor plus any seller costs in the special conditions
Survey	Before the sale	Commissioned at the buyer's risk on a lot they may not win

Stamp duty follows the standard UK non-residential bands, nothing on the first £150,000, 2 percent on the slice to £250,000 and 5 percent above that, so a £400,000 unit carries £9,500 of stamp duty regardless of the auction context. Scotland uses Land and Buildings Transaction Tax and Wales uses Land Transaction Tax, both with different bands, so check the regime for the property's location. Our commercial stamp duty calculator runs the figures for any price, and our deposit and loan to value calculator shows how much cash you need behind a given bid.

How do you finance a property bought at auction?

The auction timetable is the financing problem in one line. A standard commercial mortgage takes the lender through valuation, underwriting and legal work, which rarely fits inside the 20 working days between exchange and completion. So while a buyer can in principle complete on a term loan if it is fully agreed and the valuation already done, in practice most auction purchases complete on bridging finance, which lends quickly against the asset and is repaid by a refinance or sale once the unit is secured.

The sequence we arrange most often is buy on a bridge, then refinance. The bridge completes the purchase to the auction deadline at indicative rates from around 0.75 percent per month, the buyer takes possession and deals with any refurbishment or letting, and a commercial mortgage then replaces the bridge at a lower rate once the unit qualifies for term debt. Where the lot is bought to occupy and is in lettable condition, a faster owner-occupier term facility can sometimes be lined up to complete directly, but only if the work starts well before the sale.

The cardinal rule is that finance is arranged before the hammer, never after. Bidding without confirmed funding is how buyers lose deposits, because a binding contract does not pause while a loan is sorted out. We see this pattern often enough that our first question to an auction buyer is always which lot, what is your ceiling, and how is it funded.

What are the pitfalls of buying a property at auction?

The pitfalls are well known and almost all avoidable. The biggest is bidding on an unread legal pack and inheriting a problem the pack disclosed: a short or defective lease, an onerous covenant, a planning condition that bars the intended use, a service charge arrears liability or a missing EPC. Because diligence cannot be unwound after the hammer, the discovery comes too late. The second is budgeting only for the hammer price and being surprised by the deposit, the buyer's fee, stamp duty and the seller costs in the special conditions.

The third pitfall is funding. Buyers who assume a high street commercial mortgage can complete in three weeks, or who bid hoping to arrange finance afterwards, risk missing completion and forfeiting the deposit. The fourth is getting carried away in the bidding and paying above the rental evidence that a valuer, and therefore a lender, will support, which then shrinks the loan and leaves the buyer funding the gap in cash. The fifth, particular to industrial stock, is underrating the condition of an older portal-frame shed: roof and floor slab problems are expensive and the survey has to happen before the sale.

At auction the diligence comes before the bid, because after the hammer there is no diligence left to do, only the consequences of whatever you missed.

None of this argues against the auction route, which suits prepared, funded buyers very well and regularly produces good value on stock that struggles to sell by private treaty. It argues for doing the work in the right order: read the pack, view the unit, survey it, price every cost, fix the funding, set a disciplined ceiling, and then bid. The pillar guide on how to buy an industrial unit sets out the wider diligence checklist, and our companion article on commercial property due diligence details what to investigate before you commit.

Is the 10 minute rule and an in-room auction still how it works?

The popular picture of a packed room and a fast-talking auctioneer is now only part of the story. Most commercial auction houses run their sales online or in a hybrid format, with bidding by internet, phone and proxy alongside any room bidding. Online sales also stretch the timetable in a way the traditional ballroom did not: many lots run over a window of hours or days, and an online lot will often have a soft close that extends by a short period, sometimes informally called a ten minute rule, each time a late bid lands, so the lot only closes once bidding genuinely stops.

The shift online changes the practicalities more than the principles. Registration is done in advance with identification and proof of funds verified before bidding opens, the binding exchange still happens when bidding closes rather than continuing afterwards, and the deposit is taken electronically. Buyers can no longer read the room, but they gain time to bid carefully and the same legal certainty applies. What has not changed at all is the substance: the legal pack still governs the deal, the contract is still binding, and the diligence still has to be complete before the buyer commits.

Whether the sale is in a room or on a screen, the prepared buyer with finance agreed in principle has the advantage, because they can bid to a real ceiling and complete on time. That preparation is the part we help with: terms in principle before the sale, and a clear funding path from the bridge to the eventual term loan.