This Practice Note looks at some of the key issues in relation to professional consultant’s certificates (also sometimes referred to as architect’s certificates) which may be encountered in residential property transactions. It is aimed primarily at practitioners dealing with the sale and purchase of newly built or recently converted properties, self-build homes, and smaller residential developments where the developer has not enrolled with a recognised structural warranty provider.This Practice Note provides comprehensive practical guidance on the nature, purpose and limitations of professional consultant’s certificates, the form in which they should be presented, the obligations on practitioners acting for both buyers and lenders, the steps that must be taken in relation to assignment, the advice that should be given to clients, and the alternative protections available where a certificate is inadequate, unacceptable to the lender, or has expired.IntroductionProfessional consultant’s certificates arise most commonly in transactions involving newly built or recently converted properties, self-build homes, and smaller residential developments where the developer has not enrolled with a recognised structural warranty provider. Despite