Property purchase due diligence: post-completion review checklist for construction contracts, consultant appointments, collateral warranties, third-party rights, reports and guarantees (England and Wales)

Published by a LexisNexis Construction expert

Checklists

This Checklist outlines the principal contractual points within a bundle of construction documents that a construction lawyer should review and report on for a prospective buyer of a property or development. It should be read alongside: Construction due diligence for property purchase-initial review of construction package-checklist. After reviewing the documents and raising enquiries, the purchaser’s construction lawyer will also need to produce a report on the construction documents, see Precedent: Report on construction documentation.

The issues below proceed on the basis that construction at the relevant property has been completed. Accordingly, there is no need to scrutinise terms governing the running of the contract during the build, such as payment provisions; these are only relevant where a buyer is acquiring while works are ongoing and step-in rights are being offered.

Building contracts

Identity of contractor – Confirm the contractor continues to exist and carry out a financial check (for example via Dun & Bradstreet) to ensure it is financially sound.
Date of contract – Verify the contract date...

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Web page updated on 26/05/2026

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