What to check in a preliminary contract before completing the final deed
The preliminary contract sets the terms. The final deed gives them legal effect. When those two documents do not match, the error is already inside the deed before anyone signs it.
Checking the preliminary against the draft deed is not a formality. It is the stage where most errors are caught — and where most errors are made when the check is skipped.
Why preliminary contracts and final deeds diverge more often than you would expect
By the time a matter reaches completion, weeks or months may have passed since the preliminary contract was signed. During that time, parties negotiate adjustments, property details are updated, a representative changes, or someone spots an error in the preliminary that was to be fixed in the final.
Those informal corrections — agreed by email, by phone, or in a meeting — are the most common source of mismatches. If they are not recorded formally and carried through into the draft deed, the deed reflects the outdated version.
What to check, point by point
Identity of the parties
The name, ID number or reference, and capacity of each party must match exactly between the preliminary contract and the draft deed.
If a party is a company, verify that the registered name is identical — no abbreviated forms — and that whoever signs on the company behalf has the same authority they had when the preliminary was signed. Authorities and appointments have expiry dates; a board resolution or power of attorney that was valid at exchange may have lapsed by completion.
Description of the property or subject matter
For conveyancing matters, compare the property description in the preliminary contract with the one in the draft deed. Check:
- Title number or land registry reference
- Area or floor plan measurements
- Boundaries or neighbouring parcels
- Any rights, easements or restrictions noted
A change to the floor area that was corrected after the preliminary without formal documentation is a discrepancy the fee earner needs to resolve before completion day, not on it.
Purchase price and payment terms
The total price, payments already made and how they have been applied, the balance due at completion, and the method of payment all need to appear consistently in the final deed.
If a part-payment was made between the preliminary contract and completion that was not in the original agreement, check that it is recorded as a deposit or interim payment and that the balance the deed declares is correct.
Encumbrances, charges, and conditions precedent
The preliminary contract may require that the property be delivered free of charges, or that certain encumbrances be discharged before completion. Check that the draft deed reflects that those conditions were met, and that the file holds the documents to prove it.
If the preliminary included a condition precedent — planning consent, mortgage approval, or a similar requirement — verify that the condition was satisfied and that the relevant document is in the file before the deed is prepared for signing.
Completion date and possession
The date for handover or transfer of possession is usually agreed in the preliminary contract. Check that the deed reflects it consistently, particularly if there were any agreed extensions or adjustments since the original contract was signed.
The mismatch that costs most is the one nobody catches
Most mismatches between a preliminary contract and a draft deed are caught during the review and resolved with a correction to the draft. That is not a problem — it is the process working as it should.
The problem is the mismatch nobody checks, which surfaces after the deed has been executed. At that point, correcting it may require a rectification deed, the co-operation of both parties, and in some cases a formal application to the land registry.
A structured check of the preliminary against the draft deed — before the file reaches the fee earner on completion day — keeps that risk to a minimum.
How to record the check in the matter file
The comparison between the preliminary contract and the draft deed does not need to rely on memory or an unguided read-through. A structured verification record covering the points above, completed before completion day, shows what was checked, when, and by whom.
If the review turns up a mismatch, that same record documents the issue and how it was resolved — which protects the practice if the discrepancy is raised after the deed has been signed.
If you would like support with document review and verification in your practice, VerifyAct has tools built for that.