Architecture Public knowledge base

Reviewed 25.10.2026England focus

Jasmine Gokmen
In forceStructure & Site

Approved Document 7: Materials and workmanship

Adequate materials, testing and evidence

Requires adequate materials and workmanship, with evidence such as test certificates, CE/UKCA marking and manufacturer instructions.

Also known as: AD 7, Approved Document 7, materials

Jurisdiction
England
Document type
Statutory guidance
Edition
2018 edition
Source updated
29 November 2018
Applies from
—
Topic
Structure & Site

Key requirements

  • Materials must be of a suitable nature and quality for their purpose.
  • Workmanship must be adequate for the intended use.
  • Evidence can include test results, certificates and product marking.
  • Building control may ask for evidence of conformity and traceability.
  • This is a materials and workmanship requirement, not a product approval scheme.

Performance at a glance

Focus
Materials + workmanship
Evidence
Test certificates / marking

Applies to

All building work in England covered by the Building Regulations.

Official source

GOV.UK — Approved Document 7

Open official source

Related records

Part A · StructurePart C · Site preparation and resistance to contaminants and moisturePart D · Toxic substances

Reviewed 25 October 2026. This summary is an editorial reference, not legal advice. Check the current official text and confirm the approach with building control before relying on it. Browse all 35 records.