On-demand bonds in construction
Bonds are a means of protection against the non-performance of the contractor. They are an undertaking by a bondsman or surety to make a payment to the client in the event of non-performance of the contractor. The cost of the bond is usually borne by the contractor, albeit, this is likely to be reflected in the contractor's tender price.
Bonds can be 'on demand' or 'conditional', with conditional bonds requiring that the client provides evidence that the contractor has not performed their obligations under the contract and that they have suffered a loss as a consequence.
With on-demand bonds, the bondsman pays an amount of money set out in the bond immediately on demand in writing without needing to satisfy any preconditions whatsoever (including establishing the contractor’s liability) unless the demand is fraudulent. On-demand bonds tend to be common in international projects but are less normal in the UK were they are generally resisted because of their draconian nature.
Types of bonds that are may be on-demand bonds include:
- Advance payment bonds.
- Off-site materials bonds.
- Bid bonds (or tender bonds).
- Defects liability bonds.
It is important to bear in mind that the name of the document can be misleading and does not necessarily accurately describe the nature of document. It is the content of the document that is key.
In the case of Wuhan Guoyu Logistics Group Co Ltd & Anr v Emporiki Bank of Greece SA (2013), the buyer agreed to provide a payment guarantee from its bank, Emporiki Bank, to Wuhan (the seller), which guaranteed certain of the buyer’s payment obligations under a shipbuilding contract. An earlier court judgment found that the payment guarantee was actually an on-demand bond. The seller demanded payment of an unpaid instalment from the buyer who refused to pay believing the instalment was not due. Consequently, the seller made a demand, in good faith, under the bond from the defendant for the unpaid instalment of the contract price. The defendant paid the money but a subsequent arbitration found that the instalment was not in fact due so the defendant argued that because of the mistake, the monies paid under the bond should be held on trust for it.
The Court of Appeal rejected the defendant’s submissions finding that the bond was an autonomous contract, independent of the contract between the buyer and seller, so that when the seller made a call under the bond, monies were immediately payable as an enforceable cause of action had accrued against the defendant pursuant to the terms of the bond.
If it is at all possible to avoid giving such bonds, they should be resisted where alternative security is available.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
The Association of Consultant Architects recap
A reintroduction and recap of ACA President; Patrick Inglis' Autumn update.
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 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.


























