Change is an inherent feature of fit-out projects. As information develops and decisions are refined, scope will evolve. From a commercial perspective, the issue is rarely the existence of change, but when it occurs and how it is managed.
Late change carries a materially different risk profile to change identified and resolved during briefing and design. Understanding that distinction is fundamental to achieving cost certainty and maintaining programme control.
What is meant by “late change”
For the purposes of commercial control, late change can be defined as scope alteration introduced after a point at which the project has reasonably committed to a delivery strategy. This may be following completion of a design stage, commencement of procurement, or contract award.
At this point, design flexibility reduces, contractual mechanisms are engaged, and the ability to mitigate cost and programme impact is significantly constrained.
How late change is typically created
Late change is often perceived as an issue arising during construction. In practice, it is frequently the downstream consequence of earlier decisions.
Common contributing factors include:
- Incomplete or evolving briefs carried forward without resolution
- Assumptions embedded within cost plans that are not revisited
- Design development progressing without structured cost validation
- Programmes that compress design stages and limit review opportunities
When these conditions exist, scope risk is not removed; it is deferred.
The cost consequences of timing
From a commercial perspective, the cost of change increases as the project progresses.
During design, change can often be absorbed through re-planning, specification adjustment or scope rebalancing. Once procurement has commenced or works are underway, the same change introduces additional cost components, including:
- Disruption to sequencing and productivity
- Abortive design or procurement effort
- Extended preliminaries or overhead recovery
- Risk premiums applied by the supply chain
As a result, identical scope changes can produce materially different commercial outcomes depending on timing.
Programme interaction and secondary effects
Late change rarely affects cost in isolation. Programme impact is often a secondary, and sometimes primary, consequence.
Changes introduced during construction may affect critical path activities or trade interfaces, leading to delay or the need for acceleration. In such circumstances, clients may incur additional cost both for the change itself and for measures introduced to recover programme.
These impacts are frequently underestimated at the point decisions are taken.
Commercial management implications
Late change also alters the nature of commercial discussions. Where change is identified early, it can usually be assessed collaboratively, with options and trade-offs considered in a relatively neutral context.
As timing pressure increases, commercial positions tend to harden. Valuations become more contentious, risk allocation is challenged, and trust between parties can erode. This is a predictable outcome of reduced optionality rather than poor behaviour.
Reducing exposure to late change
Managing late change is not solely a contractual exercise. While change control procedures are important, they are reactive by nature.
Effective mitigation relies on disciplined commercial management earlier in the project lifecycle, including:
- Clear definition and active management of the brief
- Structured cost reporting throughout design
- Mid-stage cost checks to test emerging scope
- End-of-stage cost plans prepared once design information is complete
- Allowance within programmes to respond where alignment is not achieved
These measures do not eliminate change, but they materially reduce the likelihood of change occurring at a point where its impact is disproportionate.
A final observation
From a commercial perspective, late change is expensive not because it is unreasonable, but because it occurs when the ability to influence outcomes is limited.
Projects that identify, test and resolve change earlier tend to achieve greater cost certainty, improved programme performance and more stable commercial relationships. Those that defer decisions often pay for that deferral later, when options are fewer and consequences greater.
References
The principles outlined in this article align with established industry guidance, including:
- RICS – New Rules of Measurement (NRM 1): Order of Cost Estimating and Cost Planning for Capital Building Works
https://www.rics.org/standards/rics-standards-and-guidance/guidance-notes/nrm - CIOB – Code of Practice for Project Management for Construction and Development
https://www.ciob.org/knowledge-resources/knowledge-centre/code-practice-project-management-construction-and-development
Disclaimer
This article is provided for general information purposes only and does not constitute professional advice. While every effort has been made to ensure accuracy, project circumstances vary and advice should always be tailored to specific requirements. Readers should not rely on this content as a substitute for professional advice.
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