When a Giga-Project Timeline Slips: What Delay Does to a Contract Margin

An illustrative calculation showing how an eight-month delay erodes a contractor's margin through overheads, escalation and retention, and what a claim can recover.

Giga-project timelines have been revised publicly, and packages within them are often extended or resequenced. For a contractor or supplier, the damage from a delay rarely comes from the direct work, which still costs roughly the same. It comes from time-related overheads, price escalation and money held back for longer. The illustrative example below puts numbers on each effect.

The situation

A specialist contractor holds a SAR 12,000,000 package on a giga-project, planned over 18 months. Eight months into the work, the programme is extended by eight months because of delays in preceding packages.

Assumptions (illustrative)

• Assumed contract value: SAR 12,000,000, with direct costs of 70%, or SAR 8,400,000.
• Assumed time-related site overheads: SAR 100,000 per month.
• Assumed planned duration: 18 months, extended by 8 months.
• Assumed share of direct costs still to be spent when the delay starts: 50%, with 4% price escalation during the delay.
• Assumed retention: 10% of contract value held until completion, with a financing cost of 6% per year.
• Assumed recovery through a successful claim: 75% of extended overheads.

Step 1: Planned profit

18 months multiplied by SAR 100,000 equals SAR 1,800,000 overheads; SAR 12,000,000 minus SAR 8,400,000 minus SAR 1,800,000 equals SAR 1,800,000, or 15%.

This is the margin priced at tender.

Step 2: Extended overheads

8 months multiplied by SAR 100,000 equals SAR 800,000; SAR 1,800,000 minus SAR 800,000 equals SAR 1,000,000, or about 8.3%.

Time alone takes almost half the margin, because site teams, equipment and facilities stay in place.

Step 3: Escalation on remaining work

50% of SAR 8,400,000 equals SAR 4,200,000; multiplied by 0.04 equals SAR 168,000; SAR 1,000,000 minus SAR 168,000 equals SAR 832,000, or about 6.9%.

Materials and labour bought later cost more if the contract has no price adjustment.

Step 4: Longer retention

10% of SAR 12,000,000 equals SAR 1,200,000; multiplied by 0.06 and by 8 divided by 12 equals SAR 48,000; SAR 832,000 minus SAR 48,000 equals SAR 784,000, or about 6.5%.

Retention held for longer has a financing cost that is easy to overlook.

Step 5: Recovery through a claim

75% of SAR 800,000 equals SAR 600,000; SAR 784,000 plus SAR 600,000 equals SAR 1,384,000, or about 11.5%.

A well-documented claim restores much of the margin, but only if notices and records were kept.

What changes the answer

• A delay of 12 months instead of 8 raises extended overheads to SAR 1,200,000, which on its own cuts profit to SAR 600,000, or 5%, before escalation and retention are counted.
• A price adjustment clause covering escalation would remove the SAR 168,000 loss.
• Demobilising part of the site team during the delay, if allowed, would cut the monthly overhead.
• Failing to give notice within the contractual period could reduce claim recovery to nothing.

What the numbers tell you

• Time-related overheads are the main cost of delay, so price and track them separately.
• Price adjustment clauses matter more on long giga-project programmes than on short city jobs.
• The value of a claim depends on records kept from the first day of the delay.
• Plan around revised timelines by building flexibility into site staffing and procurement.

Limits of this example

Every figure above is an illustrative assumption used to show the method, not a quote, valuation or market rate. Costs, rates, fees and regulations change and must be confirmed with the relevant authority, lender or supplier before you commit.

If a Vision 2030 programme or market trend is shaping your investment case, Domira can test it against real land, construction costs and local demand in the city you are considering before you commit capital.