Construction projects involve numerous commercial transactions, design decisions, measurements, valuations and contractual obligations. When project information, expectations or interpretations differ between parties, cost-related issues may arise and develop into disputes.
Quantity surveyors can play an important role in assessing the financial and measurement aspects of such matters by reviewing project records, quantities, rates, valuations and relevant contractual documentation.
What Is a Construction Cost Dispute?
A construction cost dispute is a disagreement involving the financial or measurement consequences of a construction matter. It may concern the value of work carried out, changes to the scope, entitlement to additional payment or the amount payable under a contract.
The nature of a dispute depends on the project circumstances, contractual arrangements and records available. A proper assessment should therefore consider the specific facts and applicable contract provisions rather than relying on general assumptions.
Common Causes of Cost Disputes
While every project is different, several recurring areas can give rise to disagreements concerning construction cost.
Changes to the Contract Scope
Variations may arise when the scope, specification, quantity or design changes during a project. Disagreements can occur over whether an instruction constitutes a variation, the valuation of the change or the applicable rates and supporting records.
Differences in Quantity Assessment
Differences in measured quantities can lead to disagreements between parties. The basis of measurement, drawings, specifications, site records and measurement rules may all affect the assessment.
Differences in Rates or Value
A dispute may arise where parties have different views on the appropriate rate, valuation methodology or value of work executed. The contract conditions and supporting cost information are important considerations when assessing such matters.
Differences Between Intended and Executed Scope
Changes in design, specifications or project requirements may affect quantities and cost. Where changes are not clearly documented or communicated, disagreements may subsequently arise regarding responsibility and valuation.
Disagreements Over Amounts Payable
Payment-related disputes may involve valuation of work, deductions, retention, variations, certification or other contractual matters. Clear supporting documentation is important when reviewing the basis of the amounts claimed or certified.
Assessment of Additional Cost
Claims may involve additional costs arising from project events, changes or other circumstances. Quantity surveyors may assist in assessing the quantum component of a claim, including quantities, rates, valuation and supporting cost records.
Unresolved Commercial Items at Completion
Final account disagreements may involve outstanding variations, measured works, provisional items, claims, omissions or other adjustments. A structured review of contract records and supporting documentation can help establish the basis of the outstanding items.
The Importance of Project Documentation
Documentation is an important part of construction cost assessment. Depending on the issue, relevant records may include contracts, drawings, specifications, instructions, variation records, payment documents, measurement sheets, site records and correspondence.
The availability, consistency and timing of these records can affect the ability of the parties and their advisers to establish the circumstances and commercial consequences of a disputed matter.
The Role of a Quantity Surveyor in Dispute Assessment
Where a dispute involves quantity or cost matters, a quantity surveyor may provide an independent assessment of the relevant commercial issues.
Depending on the scope of appointment, this may include reviewing quantities, rates, valuations, variations, claims, payment records and final account items.
The assessment should clearly identify the information relied upon, assumptions made, methodology applied and areas where further information may be required.
Quantum Assessment vs. Contractual Entitlement
It is important to distinguish between the financial value of a claim and whether the claimant is contractually entitled to that amount.
A quantity surveyor's assessment may focus on the measurement, valuation and quantum aspects of a matter. Contractual entitlement may also require consideration of the relevant contract provisions, notices, instructions and other legal or contractual issues.
How to Reduce Commercial Disagreements
Clear Scope
Clearly defined drawings, specifications, scope and responsibilities provide an important basis for commercial administration.
Timely Records
Instructions, variations, measurements and other commercial events should be properly recorded.
Consistent Valuation
Applying the relevant contract provisions and measurement principles consistently can support clearer commercial assessments.
Regular Reconciliation
Regular review of variations, payments and outstanding commercial items can help identify unresolved matters during the project.
Construction cost disputes often involve interconnected issues of scope, measurement, valuation, documentation and contractual requirements. A structured commercial assessment can help establish the cost and quantum aspects of the matter.