Interior specification samples of wood, stone, carpet and cabinet hardware

AI-generated illustrative concept; not a completed CBD Projects project, approved drawing or compliance detail.

A single contingency percentage can make a budget look complete while leaving its most important assumptions unexplained. For a Dubai fit-out, the useful question is not just how much is reserved. It is which uncertainties the reserve covers, who controls it and what evidence will reduce it.

Quick answer

Start with a defined base scope, record project-specific uncertainties, estimate their possible cost effects with the relevant team, and review the allowance as information improves. Keep approved changes and known exclusions visible so they are not hidden inside the same reserve.

Separate the budget into understandable parts

Show the priced base work, clearly identified provisional items, client-side costs, risk allowances and any applicable tax treatment as separate headings. State what is included in the contractor's price and what the client must arrange separately. Have the commercial team check the treatment under the actual agreement.

A known requirement is not an unforeseen risk merely because it has been omitted from a quotation. If furniture is required but excluded, add an explicit budget line. Use the BOQ guide to define the work before discussing a reserve.

Build a risk register around the actual premises

Identify uncertainty by location and cause. Examples include unverified condition behind existing finishes, incomplete records for retained equipment, unresolved landlord working restrictions, or a product lead time that has not been confirmed. Name the owner of each investigation and the latest date a decision can be made without affecting the programme.

Describe the consequence rather than listing vague risks such as “MEP issue”. A useful entry explains what may be discovered, which work it could affect, what information is missing and what action could reduce uncertainty. The estimate should be updated when that information becomes available.

Use a worked example without treating it as a market rate

Consider a purely illustrative AED 1,000,000 base construction estimate. The team identifies an unverified retained-services interface and provisionally records an AED 30,000 to AED 70,000 exposure pending investigation. Those figures are example assumptions, not Dubai rates or a recommended contingency percentage.

If a survey establishes a defined AED 42,000 modification that is approved into the base scope, remove the corresponding risk allowance rather than counting both amounts. Review any residual uncertainty separately. This simple reconciliation is more useful than leaving every original allowance untouched until the end.

Avoid false precision and double counting

A range can be more honest than a single exact-looking figure when the design is incomplete. Ask who prepared each estimate, which quantities or quotations support it and how confident the team is. Where several risks share one cause, consider their relationship rather than adding every worst case mechanically.

Distinguish contractor pricing allowances from a client's separately controlled reserve. Their commercial treatment depends on the agreed terms. RICS professional guidance emphasises the relationship between a clear brief, project risk and budgeting; it does not supply a universal percentage for every Dubai interior project.

Control use of the allowance

Agree who can approve expenditure, the evidence required and how a forecast is updated. Record the reason, proposed scope, price basis and programme effect before authorising a change wherever practicable. A reserve should not become an informal upgrade fund simply because money appears available.

At each cost review, show the current base forecast, approved changes, unresolved risks and remaining reserve. Keep a decision log so the client can see why an allowance was increased, reduced or transferred into a defined scope item. Do not silently release it while the underlying uncertainty remains.

Reduce uncertainty before awarding the work

Target surveys and design decisions at the largest exposures. Confirm the landlord's fit-out rules, retained-equipment information, critical selections and responsibility boundaries. Early investigation has value when it changes a decision; repeated generic site visits without a defined question may not.

When comparing a fit-out contractor in Dubai, ask each bidder to explain assumptions and unresolved items consistently. Our quotation comparison guide covers the wider comparison. A transparent allowance can help protect a budget, but it cannot guarantee the final cost or eliminate the need for project-specific commercial advice.

Dubai project note: Building management rules, landlord requirements and authority pathways vary by location and project scope. Confirm the applicable approvals before finalising drawings, programme or cost.

Frequently asked questions

What contingency percentage should I use?

There is no single figure suitable for every project. Base it on scope maturity, investigations, existing conditions and identified risks with the project team.

Is contingency the same as a provisional sum?

They serve different purposes in budget management, and their contractual treatment depends on the wording used. Define both clearly with the commercial team rather than assuming they are interchangeable.

References and scope

References checked on 16 October 2026. Confirm current requirements and product instructions for the actual project; these links do not constitute project approval.

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