What investors need to know before they bid under the modern method — and what changes in the legal pack.
The modern method of auction (MMA) is not a traditional auction. The contractual structure, the deposit mechanics, and the risk profile are materially different. Before you bid, understand what the reservation fee commits you to, whether your lender will work within the timeline, and what a Bidq review covers that changes under MMA.
How modern method differs from traditional auction.
In a traditional property auction, the fall of the hammer creates a binding contract. The buyer pays a 10% deposit on the day and has typically 28 days to complete. Walking away after the hammer falls means losing the deposit.
Under the modern method, winning the bid results in a reservation contract, not an exchange. The buyer pays a non-refundable reservation fee and then has 56 days from the end of the auction to reach formal exchange of contracts and complete. Until exchange, the contractual position is less certain than under traditional auction — the seller retains the right to withdraw in most reservation contracts, and the buyer's only committed loss is the reservation fee if the deal falls apart.
The 56-day completion window was designed to make the MMA process more accessible to mortgage buyers. In practice, it creates its own pressures: searches need to be commissioned immediately, the mortgage offer must be confirmed within weeks, and solicitors on both sides need to work quickly. The window is tighter than it sounds.
What the reservation fee is — and when it is at risk.
The MMA reservation fee is payable immediately on winning the bid. It is typically set at 4.5% + VAT of the agreed price or £6,000 + VAT, whichever is greater, though platforms set their own terms and fees vary.
The reservation fee is non-refundable in virtually all circumstances. This includes scenarios where the buyer's mortgage application is declined, where a post-reservation structural survey reveals material defects, or where title issues emerge during the 56-day window. The platforms' reservation contracts are explicit on this — there is typically no force-majeure carve-out for lender refusal.
This means the decision to bid under MMA is effectively a decision to commit the reservation fee. A buyer who does not have a mortgage in principle confirmed, who has not carried out pre-auction due diligence, or who is uncertain about the property's condition is carrying meaningful capital exposure before formal exchange has taken place.
The Bidq review covers the reservation contract terms in full, identifies the conditions under which the fee is non-refundable, and flags any unusual or onerous provisions that depart from standard MMA practice.
Whether high-street lenders will lend on MMA lots.
Many mainstream lenders will lend on modern-method lots, but a number impose additional conditions or are unwilling to work within the 56-day window. The key practical requirements are:
First, a Decision in Principle must be confirmed before bidding, not post-reservation. Attempting to arrange mortgage finance after paying the reservation fee is high-risk given the non-refundability of that fee.
Second, the 56-day window is not 56 days of breathing room. Searches typically take two to four weeks. A formal mortgage offer from most lenders follows a surveyor visit, which adds further time. Exchange of contracts needs to happen before the deadline, not completion — but the solicitor work required to reach exchange is substantial and cannot be deferred to the last week.
Third, some lenders have a specific policy on MMA lots — either declining them as a category or requiring confirmations about the reservation contract structure before proceeding. Where the Bidq review surfaces any feature of the lot or reservation contract that is known to affect lender appetite, the report flags it and recommends confirming with your lender before exchange.
Cash buyers face fewer timeline constraints but should still confirm the title and documentation position before paying the reservation fee.
What changes in an MMA legal pack review.
The standard Bidq review framework applies to MMA lots in full. In addition, these issues are specific to the MMA structure and require particular attention.
Reservation contract terms
The reservation contract is the governing document in MMA and is often not read carefully before bidding. Key terms to confirm: non-refundability scope, any permitted withdrawal carve-outs, the timeline for exchange, and what happens if either party misses the 56-day deadline.
MMA-specific special conditions
MMA special conditions may differ materially from traditional auction conditions. Additional buyer costs, non-standard completion mechanics, and estate-agent facilitation fees can all appear as special conditions. Every clause is read in full in a Bidq review.
Search absence at pack stage
MMA packs are often released without current searches. Searches need to be commissioned by the buyer's solicitor immediately on reservation and returned within the 56-day window. Where searches are absent, the Bidq report flags this and recommends ordering immediately post-reservation.
Property condition and survey absence
MMA lots are frequently offered without a pre-auction structural survey or RICS valuation. The buyer takes the title and condition risk. The Bidq review covers the title and documentation risk comprehensively, but recommends a physical survey is also obtained within the first week post-reservation where condition is a material concern.
The same framework. Calibrated for the MMA risk profile.
Every Bidq review of an MMA lot covers the standard title, planning, search, lease, and contract analysis that applies to any property acquisition. In addition, the review covers the reservation contract in full, identifies the non-refundability terms and any conditions that affect the buyer's position, assesses mortgageability risk from the documentation available, and flags any timeline issues that could threaten the 56-day window. The report gives a single R/A/G posture for the lot and includes specific recommended actions calibrated for the MMA completion mechanics.
Bidding under the modern method? Start with the right house.
Bidq has dedicated review pages for each of the major MMA operators, with house-specific content on pack format, common issues, and FAQs.
Modern method — common questions.
Answers on reservation fees, mortgageability, completion timing, and Bidq's MMA review.