Non-compliant tender
This article describes in detail the tender process for a typical commercial construction contract.
For a wider description of the range of tender processes that might be adopted on different types of project, see Tender processes.
For more information about different contractual procurement routes, see Procurement route.
An invitation to tender will generally include very specific requirements for the information and format of the tender that prospective suppliers must submit. This ensures that necessary information is included and that it is in a format that the client is able to analyse and compare with other tenders.
If a prospective contractor or supplier submits a tender that does not comply with the client's requirements then that bidder is said to have submitted a non-compliant bid. This can result in the tender being rejected. Full compliance requires that all material conditions of the invitation to tender must be complied with.
A tender may be non-compliant by:
- Not answering all the question(s).
- Exceeding the required word length.
- Submitting in the wrong format e.g PDF when Excel or Word were required.
- Making a late submission.
- Not breaking down information in the correct way.
- Submitting proposals that do not comply with the client's requirements.
However, a non-compliant proposal, sometimes referred to as a variant bid, may be submitted intentionally if the tenderer believes that an alternative could offer better value for money that the requirements set out in the invitation to tender. However, non-compliant proposals should only be submitted if they have been requested or are explicitly permitted by the client, and they may need to be accompanied by a compliant bid to allow direct comparison with other tenders.
See also: Qualified bid.
[edit] Related articles on Designing Buildings Wiki
- Best value.
- Bid writer.
- Competitive tender.
- Contract award.
- Contract conditions.
- Contract documents.
- Due diligence when selecting contractors or subcontractors.
- Invitation to tender.
- Letter of award.
- Mid-tender interview.
- Most Economically Advantageous Tender (MEAT).
- Pre-tender interview.
- Procurement route.
- Qualified bid.
- Selection criteria.
- Tender documentation.
- Tender evaluation.
- Tender processes.
Featured articles and news
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.
























