Bidding on Several Lots at Once: The Funding Squeeze
Why investors end up chasing more than one lot
Our data currently flags 488 "Best Buy" lots — houses under £300k where our model estimates a value at least 1.5x the guide, with a median modelled upside of 143%. Browse one catalogue and it's common to shortlist three or four lots that all clear that bar, often clustered in the same busy postcode areas (the Sheffield (S) area currently has 32 flagged lots, the North East (NE) 16, South West (SW) 15). The temptation is obvious: if one lot at £105,360 average guide looks good, why not bid on three?
The problem isn't finding the deals. It's that an auction contract is unconditional the moment the gavel falls. If you win two or three lots in the same room, you don't get to pick which one you'd rather complete on — you owe deposits on all of them, that day, and full completion on all of them within the timetable in the legal pack, usually 28 days.
The deposit maths nobody does in advance
Most auction houses require, per lot, on the fall of the hammer:
- A deposit of 10% of the hammer price (sometimes a minimum of £5,000–£10,000 if 10% is lower)
- A buyer's administration fee, typically £1,800–£3,000 including VAT
- Payment the same day, usually by card up to a limit and the balance by bank transfer
£10,000 limits are becoming more common and most have overnight lead times — so if your three lots push past a single card limit, you need to have arranged that before the sale, not after.
Worked example: three lots, one sale
Say you shortlist three Best Buy lots in one catalogue:
| Lot | Guide | Hammer | Deposit (10%) | Buyer's fee | Due that day |
|---|---|---|---|---|---|
| A | £75,000 | £92,000 | £9,200 | £2,400 | £11,600 |
| B | £110,000 | £128,000 | £12,800 | £2,400 | £15,200 |
| C | £95,000 | £101,000 | £10,100 | £2,400 | £12,500 |
| Total | £39,300 |
That's £39,300 you need cleared and ready to move the moment the auctioneer says "sold" — on all three, because you don't know in advance which bids you'll actually win. Then the real pressure starts: the outstanding balances — £82,800, £115,200 and £90,900, totalling £288,900 — are each due within 28 days, on three separate completions, with three separate solicitors, potentially three separate lenders.
The 28-day squeeze when you win more than one
A single auction completion is already tight. Three at once multiplies every point of failure:
- Conveyancing bandwidth. Your solicitor is running three completions in parallel, each with its own searches, enquiries and mortgage offer conditions. If one lot has a defective title query buried in the legal pack, it can eat days you don't have to spare on the others.
- Lender capacity. Most buy-to-let lenders won't turn around three separate mortgage offers in under three weeks. If you're relying on term finance rather than cash or bridging, model the realistic offer-to-completion time per lender before the sale — see our guide to auction finance for typical timelines.
- Cash sequencing. If you're using a bridging facility against one property to help complete another, the first drawdown has to land before the second completion is due. Build a day-by-day cash calendar, not just a total.
Funding each lot without overlap
Before you register a paddle for more than one lot in the same sale:
- Ring-fence deposit cash per lot. Don't treat your deposit pot as one number — earmark it lot-by-lot so a win on Lot A doesn't leave you short for Lot C.
- Get finance in principle for every lot you intend to bid on, not just your favourite. An AIP costs nothing and tells you honestly whether a lender will actually fund the purchase in time.
- Line up a second solicitor if you're serious about three-plus lots. One firm running three auction completions simultaneously is a bottleneck; splitting the workload across two firms you trust reduces the risk that a delay on one stalls the others.
- Set a hard ceiling before the sale, in writing, on how many lots you can genuinely fund to completion — not how many you'd like to win.
A simple pre-sale checklist
- Deposit + buyer's fee calculated and funded for every lot you'll bid on, not just the one you expect to win
- Card limit or bank transfer arrangement confirmed with the auction house in advance
- Legal pack reviewed and solicitor briefed on all shortlisted lots, not just the front-runner
- Finance in principle in hand for each lot, with a realistic offer-to-completion timeline
- A cash calendar mapping deposit day and each 28-day completion date against funds actually available
The bottom line
Multiple good lots in one catalogue is a sign the hunting ground is good — not a signal to bid on all of them. Work out, lot by lot, what winning actually costs you on the day and what it costs you in 28 days, before you raise a paddle. Browse this week's flagged lots on Below Hammer and check the funding timeline against your own capacity before the sale, not after the hammer falls.