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Section 26H: Certificate of lawfulness of proposed works

Planning (Listed Buildings and Conservation Areas) Act 1990 · 1990 c. 9View on legislation.gov.uk

Part I: Listed Buildings — Chapter II: Authorisation of works affecting listed buildings

A person who wishes to ascertain whether proposed works for the alteration or extension of a listed building ... would be lawful may make an application to the local planning authority specifying the building and describing the works.

For the purposes of this section works would be lawful if they would not affect the character of the listed building as a building of special architectural or historic interest.

If on an application under this section the local planning authority are provided with information satisfying them that the works described in the application would be lawful at the time of the application, they must issue a certificate to that effect; and in any other case they must refuse the application.

A certificate under this section must—

specify the building to which it relates;
describe the works concerned;
give the reasons for determining that the works would be lawful; and
specify the date of issue of the certificate.

Works for which a certificate is issued under this section are to be conclusively presumed to be lawful, provided that—

they are carried out within 10 years beginning with the date of issue of the certificate, and
the certificate is not revoked under section 26I.

About this text

This legislation text comes from legislation.gov.uk. Contains public sector information licensed under the Open Government Licence v3.0. These source and reuse terms cover the legislation text, not Remedy's commentary.

Reuse reviewed 21 August 2026 under Open Government Licence v3.0.