What is a legal pack at auction?
A legal pack is a collection of legal documents that the auctioneer makes available to prospective buyers before a UK property auction. It contains everything you need — in theory — to make an informed decision about the lot before raising your hand. In practice, legal packs can run to 300 pages or more, and the clauses that matter most are rarely on page one.
The legal pack is prepared by the seller's solicitor. Their job is to protect the seller, not inform the buyer. Buyers who treat the pack as a formality rather than a genuine due diligence document regularly discover problems they were legally bound to accept the moment they bid.
When the auctioneer's hammer falls, contracts are exchanged immediately and the sale is legally binding. There is no cooling-off period, no right to renegotiate, and no recourse if you discover a problem afterwards. The legal pack is your only protection — if you haven't read it, you're buying blind.
What documents are in a legal pack at auction
A typical UK auction legal pack contains the following, though not all will be present in every lot:
| Document | What it contains | Status |
|---|---|---|
| Title Register | Confirms ownership, tenure (freehold/leasehold), charges, and restrictions on the title | Always required |
| Title Plan | OS map showing the property's registered boundaries | Always required |
| Special Conditions of Sale | Bespoke clauses overriding standard auction terms — where hidden costs and obligations are buried | Always required |
| Common Auction Conditions | Standard terms applying to all lots unless overridden by Special Conditions | Always required |
| Local Authority Search | Planning history, road adoption, enforcement notices, nearby schemes | Often included |
| Drainage Search | Public sewer locations, adoption status, responsibility for drainage | Often included |
| Environmental Search | Contaminated land, flood risk, ground stability | Often included |
| Lease (leasehold) | Full lease terms: length, ground rent, service charge, covenants | If leasehold |
| EPC | Energy Performance Certificate | Sometimes |
| Property Information Form (TA6) | Seller disclosures: disputes, alterations, services | Sometimes |
A document being absent from the pack doesn't mean it doesn't exist — it may mean the seller can't or won't provide it. Missing building regs, a missing lease, or absent searches all carry specific risks that the buyer inherits on completion.
Why auction conveyancing is completely different
The fundamental difference between buying at auction and buying through an estate agent comes down to when contracts are exchanged.
In a private treaty sale, you negotiate, make an offer, have surveys done, instruct solicitors, go through a conveyancing process that takes 8–12 weeks, and only exchange contracts at the end — at which point you are legally bound. Until exchange, either party can withdraw without penalty (subject to any lock-in agreements).
At auction, exchange happens the moment the hammer falls. There is no period between "making an offer" and "being legally bound" — they are the same event. The second the auctioneer says "Sold", you owe a 10% deposit and are committed to completing within the timescale in the legal pack — typically 20–28 working days.
The implications of immediate exchange
- No cooling-off period — you cannot change your mind after bidding
- No right to renegotiate — even if you discover a serious problem
- No mortgage contingency — if your lender declines, you still must complete or forfeit your deposit
- No recourse for late discoveries — problems found after the hammer are your problem, not the seller's
- Compressed completion timeline — 20–28 working days vs 8–12 weeks in private treaty
At auction, due diligence is not something you do after winning — it is something you must complete before bidding. The legal pack is the only information available to you. Read it, understand it, and if necessary pay a solicitor or use LegalPack AI to screen it before you enter the room.
What to look for in an auction legal pack
Special Conditions of Sale — read these first
The Special Conditions are the most important and most overlooked part of any auction legal pack. They are bespoke clauses added by the seller's solicitor that override the standard Common Auction Conditions. Common things buried in Special Conditions:
- Buyer pays seller's legal fees — often £1,500–£10,000, mandatory on completion. Not flagged in the lot description.
- Shortened completion period — 10 or 14 working days instead of the standard 20–28. Fatal for buyers using mortgages.
- No title guarantee — you take the property with no legal protection if title turns out to be defective.
- VAT applicable — can add 20% to the purchase price. Rarely flagged upfront.
- Overage clauses — the seller takes a percentage of future planning uplift, potentially worth tens of thousands.
Title register — tenure and restrictions
Confirm whether the property is freehold or leasehold. If leasehold, check the unexpired term in the title register. Under 80 years makes a property difficult to mortgage; under 70 years typically means cash buyers only. The Charges Register shows restrictive covenants and other burdens — obligations that bind the property and every future owner.
Searches — check the dates
Most mortgage lenders only accept searches less than six months old at completion. If the local authority search is dated eight months ago, your lender may refuse to draw down. Check the date of every search before bidding — especially if a lot has been deferred or re-entered from a previous auction.
Leasehold documents — the lease and management pack
For leasehold properties, the lease itself is the most important document. Check the unexpired term, ground rent, service charge, any major works currently scheduled, and the covenants. A flat with a 65-year lease, escalating ground rent, and £20,000 of scheduled cladding remediation can look cheap at first glance and be catastrophically expensive in practice.
Conveyancing costs at auction
Understanding the full cost of buying at auction is essential for setting a realistic maximum bid. Beyond the hammer price:
- Pre-bid solicitor review: £350–£550+VAT (freehold), £400–£600+VAT (leasehold). Average £429+VAT per Property Solvers research.
- Buyer's premium: £1,000–£2,500+VAT, payable on the day
- Full conveyancing after winning: £800–£1,500+VAT
- SDLT: on the full purchase price at residential or additional dwelling rates
- Seller's legal fees: £0–£10,000+VAT if present in the Special Conditions
See our full auction legal pack cost guide for a detailed breakdown of every fee.
Using LegalPack AI before you instruct a solicitor
LegalPack AI is designed for one specific job: giving you the information you need to decide whether a lot is worth bidding on, before you spend money on solicitor review fees or the auction room.
Upload the legal pack — in any format — and receive a structured risk report in 3–4 minutes. The report flags:
- Every hidden cost and mandatory buyer fee in the Special Conditions
- Title defects, restrictions, and mortgageability issues
- Lease length and ground rent (with warning if under 80 years)
- Search expiry and any missing documents
- Chancel repair liability and other title-specific risks
If the report reveals deal-killers, you walk away before spending £350–£550+VAT on a solicitor review of a property you were going to reject anyway. If the pack is clean, you proceed to a full solicitor review (or bid directly for straightforward lots) with confidence.
| Plan | Price | Best for |
|---|---|---|
| Pay As You Go | £9.99 per pack | Occasional auction buyers screening individual lots |
| Standard | £69.99/month | Active investors reviewing up to 30 packs per month |
| Pro | £149.99/month | High-volume investors reviewing up to 100 packs per month |
Know what's in the pack before you bid
LegalPack AI reads every document in your auction legal pack in minutes — flagging the risks, hidden costs, and deal-killers that catch unprepared buyers out. From £9.99 per pack.
Analyse Your Legal Pack →Frequently asked questions
What is in a legal pack at auction?
A UK property auction legal pack typically contains the title register and title plan (confirming ownership and tenure), Special Conditions of Sale (bespoke clauses overriding standard auction terms), Common Auction Conditions, local authority search, drainage search, environmental search, and — for leasehold properties — the full lease. EPC, Property Information Form (TA6), and building regulations certificates may also be included.
Why is auction conveyancing different?
At auction, contracts are exchanged the moment the auctioneer's hammer falls. The sale is immediately and legally binding — there is no cooling-off period, no right to renegotiate, and no recourse if you discover a problem afterwards. Completion is typically required within 20–28 working days. In private treaty, exchange and completion are separate events weeks apart, and either party can withdraw before exchange without penalty.
Do I need a solicitor to review a legal pack before bidding?
Not necessarily. Solicitors charge £350–£550+VAT for a pre-bid legal pack review, payable whether you bid or not. LegalPack AI reads every document in a legal pack in 3–4 minutes and flags the specific risks for £9.99 — acting as a first-pass screen before you decide whether a full solicitor review is warranted. For active buyers reviewing multiple packs before each auction, LegalPack AI saves hundreds in wasted solicitor review fees.
What are Special Conditions of Sale at auction?
Special Conditions are bespoke clauses added by the seller's solicitor that override the standard Common Auction Conditions. They are the most important part of any legal pack. Common items include buyer pays seller's legal fees (often £1,500–£10,000), shortened completion periods, no title guarantee, VAT applicable to the purchase price, and overage clauses requiring the buyer to share future planning gains with the seller.