Non-conformance report
A non-conformance report (NCR sometimes referred to as a non-conformity report) is a formal document used to identify, record, and address instances where work, materials, or processes do not meet the specified requirements or standards. It serves as a crucial tool for maintaining quality control and ensuring that construction projects comply with contractual, regulatory, and industry standards.
The primary purpose of an NCR is to document any deviation from the agreed standards, specifications, or contractual requirements. It ensures that non-conforming work is identified, assessed, and corrected to prevent recurrence and to maintain the overall quality of the project.
For example, NCRs might be required:
- When materials delivered to the site do not meet the required specifications or are damaged.
- If the work carried out does not meet the quality standards set out in the project specifications.
- If there are deviations from approved construction methods or procedures.
- Breaches of health and safety regulations or practices.
An NCR might include:
- A detailed explanation of the issue, including what was found to be non-compliant.
- The standards, specifications, or drawings that the work should have conformed to.
- Information about where and when the non-conformance was identified.
- The party responsible for the non-conformance.
- Suggested actions to correct the non-conformance.
- Review and approval by relevant parties, such as the project manager, quality control officer, or site engineer.
The NCR is reviewed by the appropriate authority to determine the severity and impact, and actions are proposed and implemented to rectify the non-conformance. The corrective actions are then reviewed to ensure they have been effective in resolving the issue, and the NCR is then formally closed.
NCRs are vital for maintaining high standards of quality on construction projects. They help to manage and mitigate risks associated with non-compliance and provide a record of issues that can be analysed to improve processes and prevent future non-conformances. They ensure that there is a clear record of issues and corrective actions, promoting accountability within the project team and, helping ensure the successful and compliant delivery of construction projects.
[edit] Related articles on Designing Buildings
- Backlog.
- Burn down chart.
- Commissioning.
- De minimis.
- Defects.
- Defects liability period.
- Defects list.
- Defective Premises - Liability and Measure of Damages.
- Defective Premises Act.
- Final certificate.
- Practical completion.
- Punch list.
- Schedule of defects.
- Site inspection.
- Snagging.
- Work-to-complete list.
Featured articles and news
The Home Energy Model and its wrappers
From SAP to HEM, EPC for MEES and FHS assessment wrappers.
Future Homes Standard Essentials launched
Future Homes Hub launches new campaign to help the homebuilding sector prepare for the implementation of new building standards.
Building Safety recap February, 2026
Our regular run-down of key building safety related events of the month.
Planning reform: draft NPPF and industry responses.
Last chance to comment on proposed changes to the NPPF.
A Regency palace of colour and sensation. Book review.
Delayed, derailed and devalued
How the UK’s planning crisis is undermining British manufacturing.
How much does it cost to build a house?
A brief run down of key considerations from a London based practice.
The need for a National construction careers campaign
Highlighted by CIOB to cut unemployment, reduce skills gap and deliver on housing and infrastructure ambitions.
AI-Driven automation; reducing time, enhancing compliance
Sustainability; not just compliance but rethinking design, material selection, and the supply chains to support them.
Climate Resilience and Adaptation In the Built Environment
New CIOB Technical Information Sheet by Colin Booth, Professor of Smart and Sustainable Infrastructure.
Turning Enquiries into Profitable Construction Projects
Founder of Develop Coaching and author of Building Your Future; Greg Wilkes shares his insights.
IHBC Signpost: Poetry from concrete
Scotland’s fascinating historic concrete and brutalist architecture with the Engine Shed.
Demonstrating that apprenticeships work for business, people and Scotland’s economy.
Scottish parents prioritise construction and apprenticeships
CIOB data released for Scottish Apprenticeship Week shows construction as top potential career path.
From a Green to a White Paper and the proposal of a General Safety Requirement for construction products.
Creativity, conservation and craft at Barley Studio. Book review.
The challenge as PFI agreements come to an end
How construction deals with inherited assets built under long-term contracts.
Skills plan for engineering and building services
Comprehensive industry report highlights persistent skills challenges across the sector.
Choosing the right design team for a D&B Contract
An architect explains the nature and needs of working within this common procurement route.
Statement from the Interim Chief Construction Advisor
Thouria Istephan; Architect and inquiry panel member outlines ongoing work, priorities and next steps.


























