Quantum & Cost Advisory

Clarity on cost. Confidence in your commercial position.

Independent quantity surveying, construction cost and quantum advice for live projects, payment matters, final accounts, claims and disputes across Singapore and Asia-Pacific.

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Overview

Know what the work is worth, and why.

Construction cost issues rarely arise in isolation. Variations, changed working conditions, programme slippage, incomplete records and disputed valuations can all affect the financial position. We bring commercial judgment and evidence-led analysis to the measurement, valuation and assessment of construction costs and claims.

John Leong, Executive Advisor – Contractual, Quantum & Dispute Resolution, leads our quantity surveying, cost and quantum advisory support. This includes variation valuations, payment assessments, final accounts, prolongation costs, loss and expense, and independent quantum reviews. His contractual experience helps connect each valuation to the relevant scope, contract provisions and supporting evidence.

Where additional cost is said to arise from delay or disruption, quantum assessment can be coordinated with Sam Nason's programming, extension-of-time and forensic delay analysis. We distinguish entitlement, causation and valuation so that conclusions are transparent and can be tested.

Support may be commissioned for a single valuation or dispute, throughout project delivery, at close-out or across a wider project portfolio. We also assist legal advisers with independent quantum analysis and supporting reports, subject to the agreed scope, conflicts and independence requirements.

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Scope of support

Focused analysis across the issues that matter.

Quantity surveying, measurement and construction cost assessment

Variation, change-order and additional-work valuations

Progress payment assessments, payment claims and payment-response support

Final-account preparation, review, negotiation and reconciliation

Prolongation costs, site overheads, preliminaries and loss-and-expense assessments

Disruption-related cost and productivity-loss quantification, coordinated with delay analysis where appropriate

Review of deductions, contra charges, set-offs and disputed amounts

Contemporaneous cost-record, invoice, resource and substantiation reviews

Independent quantum assessments and reports for negotiation, adjudication, mediation or arbitration

Ongoing commercial and cost advice for an individual project or portfolio

Typical engagements

Flexible support across individual projects or portfolios.

Independent valuation of a disputed variation or payment item

Final-account review and close-out support

Prolongation cost or loss-and-expense assessment

Quantum review for a SOPA payment dispute, alongside legal counsel as appropriate

Commercial and expert support for negotiation or formal proceedings

Ongoing project cost advisory or multi-project portfolio retainer

Deliverables

Clear outputs designed for their intended audience.

Independent valuation or quantum assessment, with assumptions and supporting calculations

Variation and change-order valuation schedule with referenced evidence

Payment claim or payment response commercial assessment

Final-account statement, reconciliation and disputed-item register

Prolongation and loss-and-expense cost analysis linked to the relevant records

Quantum evidence-gap review and prioritised document request list

Commercial options paper or negotiation briefing identifying key cost exposures

Expert-support quantum schedules, exhibits and technical reports where instructed

How the work is approached

A structured and auditable process.

Define the valuation question, contract basis and decision required

Review measurement, cost records and supporting evidence

Test entitlement interfaces, assumptions and competing valuations

Present a transparent assessment and practical next steps

Frequently asked questions

Practical answers before the engagement begins.

When should we engage a quantum or cost adviser?

As early as possible when a variation, payment issue, cost overrun or final-account disagreement becomes material. Early involvement helps establish the records, valuation basis and contractual context before positions harden. We can also assess existing claims and disputes.

Can you review a variation, payment claim or final account?

Yes. We can independently measure, value and review disputed work or costs, prepare supporting valuation schedules, and identify missing substantiation or material differences between the parties' assessments. The precise work depends on the contract and records available.

Do you assess prolongation costs and loss and expense?

Yes. We can examine site overheads, preliminaries, labour, plant, subcontract costs and other relevant financial records. Where the claim depends on delay or disruption, the cost assessment is coordinated with a separate analysis of time impact and causation, as required.

Can you assist with Singapore SOPA adjudication?

We can provide commercial and quantum assessments, supporting calculations, document reviews and technical assistance for payment claims or adjudication preparation. We do not replace legal counsel; statutory compliance, procedural deadlines and legal representation should be addressed with appropriately qualified lawyers.

What is the difference between Quantum & Cost Advisory and Contractual Claims Advisory?

Quantum & Cost Advisory focuses on measurement, valuation, financial substantiation and cost exposure. Contractual Claims Advisory focuses on entitlement, notices, contract administration and claim strategy. Many matters require both, and we can coordinate the disciplines under a single agreed scope.

Can you provide cost support across a portfolio rather than one project?

Yes. A portfolio arrangement can provide continuity across variations, payment assessments, final accounts and emerging cost risks on multiple projects. It can be more efficient than commissioning separate reviews once disputes have developed.

Discuss a matter

Clear advice starts with understanding the issue.

From ongoing contract administration and quantity surveying to delay analysis, quantum claims and dispute support, our specialists can help you assess the next step.

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