A good auction deal is not a fixed discount from an asking price. It is a property whose conservative value still exceeds the bid, all verified costs and a contingency large enough for the remaining uncertainty.
The most useful calculation is not “How cheap is this?” but “What is the highest price I can pay without depending on an optimistic assumption?”
Use the correct formula
Start with:
Maximum bid = conservative value in the verified legal and physical state − additional organiser charges − professional and registration costs − essential repairs − access and possession costs − financing costs − contingency
The calculation must use the exact sale procedure. In a bailiff's judicial auction, the 10% bidder's fee is credited towards the winner's price and should not be added again as a buyer's commission. Another organiser may impose a genuine additional charge shown in its terms.
Step 1: Define the exact asset
Before valuing anything, confirm whether the auction sells the entire property, a share, a leasehold interest or another right. Match the notice to a current Real Property Register extract and cadastral plan.
Check registered purpose, area, completion, ancillary premises, land, easements and rights of use. A listing photograph of an apartment does not prove that the whole apartment is being sold.
If identity remains unclear, there is no defensible valuation.
Step 2: Build a conservative market value
Use recent comparable evidence for properties with similar location, purpose, size, completion and condition. Asking prices are not completed transactions, so adjust them cautiously.
For each comparable, record:
- source and date;
- exact location and property type;
- area and registered purpose;
- condition and occupancy;
- material differences;
- adjustment and reason.
Use REGIA, official spatial data and register information to confirm location attributes. If a lender's valuation is available, understand its assumptions rather than treating the headline figure as certain.
Choose the lower end of a reasonable range when access, occupancy or condition is uncertain.
Step 3: Estimate property work from evidence
Separate repairs into:
- immediate safety and security;
- essential work before lawful use;
- deferred maintenance;
- optional improvements.
Use written quotes where possible. For an uninspected asset, add an access limitation rather than pretending the visible defects are complete.
Unregistered construction or a mismatch between actual and cadastral data requires more than a repair allowance. Ask whether legalisation is possible and whether the lender will accept the property.
Step 4: Price access and possession
Confirm who occupies the property, whether a lease or right of use is disclosed and whether keys or vacant possession are promised. Ownership registration does not guarantee immediate physical control.
Include lawful legal assistance, storage, clearance, security and delay where credible. If possession uncertainty could destroy the intended use or cash flow, resolve it before bidding rather than hiding it inside a small contingency.
Step 5: Include every transaction and finance cost
Use the official notice and current quotes for:
- genuinely additional organiser charges;
- register documents, legal review and surveys;
- valuation and lender charges;
- ownership and security registration;
- insurance;
- translation or representation where needed;
- interest and short-term financing;
- property-specific tax advice.
The extra-cost checklist helps avoid omissions and double-counting.
Step 6: Set the contingency from evidence quality
Do not apply one standard 10% or 20% buffer to every property. Build the contingency from unresolved items.
| Evidence quality | Typical treatment |
|---|---|
| Current primary document and inspection | Use a costed estimate with modest variance |
| Old or partial evidence | Widen the range and reduce the bid |
| No inspection or unclear occupancy | Add a substantial risk allowance |
| Unclear title, use or finance eligibility | Resolve before bidding or reject |
A contingency is appropriate for a manageable repair uncertainty. It is not a substitute for knowing what legal asset is sold.
Step 7: Run an adverse case
Change three assumptions:
- reduce market value;
- increase essential repairs and possession cost;
- reduce the mortgage because the lender's accepted value is lower.
If the purchase no longer works under a plausible adverse case, lower the ceiling. If settlement becomes impossible, do not bid with mortgage-dependent funds.
Step 8: Compare the auction with a real alternative
Find a property you could actually buy through a negotiated sale. Include condition, finance flexibility, inspection rights, possession and transaction costs on both sides.
The auction is a good deal only if the risk-adjusted result is better for your purpose. A lower price can be inferior when the negotiated alternative includes vacant possession, complete documents and time to arrange finance.
Keep the ceiling during live bidding
Write the maximum amount before the auction opens. The electronic judicial-auction system may extend bidding in five-minute periods while new bids arrive. A small next increment does not make the new total rational.
Stop at the ceiling even if you have already spent time or money on due diligence. Those are sunk costs, not a reason to overpay.
Red flags that are not “discount opportunities”
Reject or obtain specialist confirmation before bidding when:
- the exact share is uncertain;
- the physical property conflicts with register data;
- lawful access is not established;
- a major right or occupancy issue is unexplained;
- the intended use may not be permitted;
- the lender has not accepted essential collateral features;
- settlement depends on a deadline extension not in the notice.
Use the document checklist and seized-property risk guide before entering numbers.
This article is general information. A maximum bid is only as reliable as the current evidence and professional advice behind it.