JBCC Building Contracts: Understanding Payment and Delay Disputes

Anyone who has commissioned or carried out a substantial building project in South Africa has probably encountered a JBCC contract. The suite of agreements published by the Joint Building Contracts Committee is the most widely used set of standard-form building contracts in the local private sector, governing everything from house builds and renovations to large commercial developments. The same provisions that are designed to keep a project running smoothly — payment certificates, completion certificates, penalties and strict time bars — are, however, also the source of most of the building disputes we see in practice. Understanding how the JBCC machinery works is the first step to protecting your position, whether you are the employer paying for the works or the contractor building them.

What Is a JBCC Contract?

The Joint Building Contracts Committee is a body representing employers, built-environment professionals and contractors. It publishes a suite of matching contract documents, the best known of which is the Principal Building Agreement. The suite also includes a subcontract agreement for nominated and selected subcontractors and a simplified Minor Works Agreement for smaller projects. The current edition of the Principal Building Agreement is Edition 6.2, published in May 2018, although earlier editions remain in use on many projects — which is why the first question in any JBCC dispute is always: which edition applies, and what does the contract data say?

A defining feature of the JBCC structure is the principal agent — usually the architect, quantity surveyor or project manager appointed by the employer. The principal agent administers the contract: issuing instructions, valuing the works, certifying payment and completion, and assessing claims. Although appointed and paid by the employer, the principal agent is required to act fairly and independently when certifying. Many disputes trace back to a principal agent who failed to do so.

How Payment Certificates Work

Payment under a JBCC agreement is driven by certificates, not invoices. The principal agent values the works at regular intervals — ordinarily monthly — and issues an interim payment certificate reflecting a fair estimate of the work executed and the materials and goods on site. Under Edition 6.2 the employer must pay the certified amount within seven calendar days of the date for issue of the certificate, unless the parties have agreed a different period in the contract data. At the end of the project, a final payment certificate reconciles the full amount due under the contract.

An employer who believes an amount has been incorrectly certified cannot simply withhold payment. The JBCC requires the employer to raise the objection within tight time limits and with reasons, after which the disagreement follows the contract's dispute resolution procedures. Unilateral deductions made outside this framework are one of the most common — and most avoidable — causes of building litigation.

Why an Unpaid Certificate Is So Powerful

South African courts take payment certificates seriously. A certificate issued by the principal agent is treated as an acknowledgement, made on the employer's behalf, that the certified amount is owed. Our courts have repeatedly granted expedited relief such as summary judgment and provisional sentence on unpaid certificates, and they are unsympathetic to employers who raise vague or contrived defences. In Joob Joob Investments (Pty) Ltd v Stocks Mavundla Zek Joint Venture [2009] ZASCA 23; 2009 (5) SA 1 (SCA), the Supreme Court of Appeal upheld summary judgment in favour of a contractor on unpaid certificates issued under a JBCC agreement, confirming the robust approach our courts take where an employer tries to avoid paying certified amounts without a genuine, bona fide defence.

For contractors, this means an unpaid payment certificate is often the quickest route to judgment. Late payment also attracts default interest under the contract, and persistent non-payment entitles the contractor, after giving the required notices, to suspend the works or ultimately to terminate the agreement. Where a payment guarantee was provided, an unpaid certified amount may also trigger a demand under the guarantee.

Delay Disputes and Extensions of Time

The second great battleground under JBCC contracts is time. The agreement fixes a date for practical completion, and if the contractor fails to achieve it the employer is ordinarily entitled to a penalty at the daily rate stated in the contract data. The contractor's protection lies in the extension-of-time machinery: where the delay is caused by events beyond the contractor's control, or by the employer and its agents, the contractor may claim a revision of the date for practical completion — in some circumstances together with compensation for time-related costs.

In our experience, delay disputes tend to flare up around a handful of recurring flashpoints:

• Late instructions, drawings or information from the principal agent;
• Contract instructions that materially increase the scope of the works without a corresponding revision of the completion date;
• Disagreements over whether an event — such as abnormal weather or a supply failure — qualifies for an extension at all;
• Claims submitted late, or without proper substantiation, and then rejected on that basis alone.

That last point deserves emphasis. The JBCC imposes strict notice periods and time bars on claims for extensions of time and for expense and loss. A contractor who sits on a claim, hoping to sort it out at final account stage, will often find that the claim has been forfeited — regardless of its underlying merit.

Resolving JBCC Disputes

The JBCC provides its own dispute resolution ladder. Depending on the edition and the choices made in the contract data, disagreements are typically referred first to adjudication — a fast, documents-driven process whose determination binds the parties in the interim — with arbitration or court proceedings available thereafter. Certified amounts, as noted above, can often be enforced directly through court proceedings. Choosing the right forum, and moving within the applicable time limits, is a strategic decision best taken with advice early on.

Practical Guidance for Employers and Contractors

• Employers: read the contract data before signing — the penalty rate, security options and payment periods are all choices, not fixed terms. Pay certified amounts on time and challenge certificates through the contractual channels, not by unilateral deduction.
• Employers: insist on a principal agent who certifies independently and keeps proper records. A defective certification process undermines your position in any later dispute.
• Contractors: diarise every notice period. Submit extension-of-time and expense claims in writing, in time and with substantiation.
• Contractors: keep daily site records, photographs and correspondence. Delay disputes are won and lost on contemporaneous evidence.
• Both parties: take advice before suspending works, terminating or deducting penalties. A wrong step at that moment can convert a strong position into a repudiation claim against you.

Our firm has a particular focus on building disputes, including JBCC payment and delay claims for both employers and contractors. If a certificate has gone unpaid, a penalty has been deducted or a claim has been rejected on your project, contact us for advice on your options.