Change orders are a normal part of construction. Existing conditions are uncovered, owner requirements evolve, designs are clarified, agency requirements emerge, and field coordination creates legitimate adjustments to the work.
Normal does not mean automatic. A change order can affect the owner's budget, contingency, completion date, contractual position, and ability to make later decisions. When a proposed change is large, complicated, poorly supported, or one of many unresolved requests, an independent review can help the owner understand what is being approved.
The owner does not need to replace the project team or begin a full advisory engagement to obtain that perspective. A focused change-order review can be limited to one proposal, a defined group of changes, or the current change-order log.
When an independent review is worth considering
Not every change requires outside review. A modest, well-documented change that has been evaluated by a reliable project team may follow the normal approval process.
Additional review may be appropriate when:
• The proposed value is material to the project budget
• The backup is incomplete or difficult to reconcile
• The change includes significant labor, equipment, or general conditions
• The contractor claims a schedule extension or delay cost
• Several changes appear to address the same event or scope
• The request relies heavily on allowances or lump-sum pricing
• The project has a growing backlog of unresolved changes
• The owner is receiving conflicting recommendations
• Contingency is being consumed faster than expected
• Approval is being requested before scope or responsibility is clear
• The owner wants an unbiased assessment before a negotiation
The appropriate level of review should reflect the size, complexity, and consequences of the change.
Start with the reason for the change
The first question is not whether the price seems high or low. It is why the work is changing.
A proposed change may result from:
• Owner-directed scope
• Design development or clarification
• A concealed or unknown condition
• Code or authority requirements
• Building or landlord requirements
• Material substitution or procurement conditions
• Coordination among trades
• Contractor means and methods
• Error, omission, or incomplete scope
• Acceleration, delay, or resequencing
The reason matters because it affects responsibility, contractual entitlement, available alternatives, and how the change should be tracked. An independent review should separate the factual event from the positions taken by the parties.
Confirm that the scope is clear
A change cannot be evaluated reliably if the proposed work is not defined. The review should identify what is being added, removed, replaced, or revised and how that work relates to the original contract documents.
Useful supporting information may include:
• Relevant drawings and specifications
• Sketches, bulletins, RFIs, or supplemental instructions
• Contractor and subcontractor proposals
• Photographs or field reports
• Meeting minutes and correspondence
• Original bid breakdowns
• Allowance or unit-price provisions
• Schedule updates
• Prior related change orders
The review should also identify exclusions and downstream effects. A proposal for a new piece of equipment may omit electrical work, controls, structural support, testing, patching, access, or restoration.
Check for overlap with the base contract
One of the most important questions is whether the proposed work is already included in the contractor's original scope or another approved change.
This review may require comparing the proposal against the contract, drawings, specifications, clarifications, bid qualifications, allowances, and responsibility matrix. The goal is not to make a legal determination. It is to identify apparent overlap, ambiguity, or missing support that should be resolved before approval.
On a project with many changes, the reviewer should also check whether costs are being repeated across proposals. Mobilization, supervision, protection, temporary work, demolition, patching, and schedule effects can appear in more than one request arising from the same event.
Evaluate the pricing support
A credible proposal should allow the owner to understand how the requested amount was developed. The appropriate level of detail depends on the contract and the nature of the work, but the review may consider:
• Labor classifications, hours, and rates
• Material quantities and unit costs
• Equipment and rental charges
• Subcontractor proposals
• Shipping, taxes, and escalation
• Waste and productivity assumptions
• Insurance, bonds, and permitted markups
• General conditions and supervision
• Allowances, credits, and contingency treatment
• Pricing for deleted or avoided work
The review should distinguish between verified cost, contractor estimate, allowance, and unresolved exposure. A lump sum may still be reasonable, but the owner should understand the basis on which it is being accepted.
Review credits as carefully as additions
When work is revised or removed, the owner's credit should be evaluated alongside the added cost. Credits are sometimes based only on direct material savings while the addition includes labor, supervision, markup, and other costs.
The review should ask:
• What original work is no longer required?
• Has that work already been purchased, fabricated, or installed?
• Are avoided labor and equipment costs included?
• Are associated markups treated consistently?
• Is an allowance being reconciled correctly?
• Does the change reduce work elsewhere in the project?
The net change should reflect both sides of the revision.
Understand schedule consequences
The review should consider:
• When the issue was identified
• When the contractor notified the team
• Whether the work affects a critical or near-critical activity
• Whether procurement or approvals drive the claimed delay
• What mitigation or resequencing has been considered
• Whether the same schedule effect is included in another change
• Whether the proposal provides added time, added cost, or both
• How the change affects the current completion forecastA delayed activity does not automatically move the final completion date. Conversely, a seemingly modest scope change can have a serious schedule effect if it interrupts critical work or long-lead procurement.
Look at the cumulative effect
Owners often review changes one at a time, but the project experiences them collectively. A stack of individually manageable changes can materially alter the budget, schedule, design intent, or risk profile.
A consolidated review should organize:
• Approved change orders
• Pending proposals
• Potential changes not yet priced
• Rejected or withdrawn requests
• Forecast exposure
• Contingency used and remaining
• Aggregate schedule effects
• Recurring causes and responsibility patterns
This view can reveal whether the project is experiencing isolated adjustments or a broader control problem.
Separate urgent field direction from final commercial approval
Some situations require prompt direction to protect safety, property, schedule, or ongoing work. The owner may need to authorize limited work before every commercial issue is resolved.
That urgency should not turn an interim direction into an undocumented final agreement. The team can define a not-to-exceed amount, time-and-material documentation requirements, daily tickets, photographs, or other controls while final scope and price are evaluated.
The approval record should clearly distinguish authorization to proceed from acceptance of final cost and time.
What an independent review can deliver
A focused review can be tailored to the owner's immediate need. Deliverables may include:
• An annotated proposal
• A written findings memorandum
• A list of missing support and clarification questions
• A pricing and markup comparison
• A consolidated change-order log
• A budget and contingency impact summary
• A schedule-impact question list
• Recommended negotiation priorities
• A debrief before the owner's project meeting
The reviewer does not need to take over communication with the contractor or manage the broader project. The assignment can end when the owner has the information needed to proceed.
The review should remain independent
An effective reviewer should not begin with the assumption that the contractor's proposal is wrong or that the project team's recommendation is incomplete. The objective is to test the information, make assumptions visible, and identify what requires resolution.
Some reviews confirm that a proposed change is well supported and commercially reasonable. Others identify overlap, incomplete backup, unresolved schedule effects, or questions that materially change the owner's negotiating position. Both outcomes provide value because the owner can make the decision with greater confidence.
Recognize the limits of the assignment
An independent change-order review is not legal advice, a licensed design opinion, or a substitute for the architect's or engineer's technical responsibilities. Contract interpretation or claims strategy may require the owner's attorney. Technical questions may require the architect or engineer of record.
The review is also limited by the quality of the available documentation. When essential records are missing, the appropriate conclusion may be that the owner does not yet have enough information to approve the change.
A second set of eyes before a consequential decision
Owners should understand the scope, basis, cost, schedule effect, and remaining uncertainty before approving a material change. A focused, independent review can provide that clarity without requiring a continuing project-management engagement.
Reviewing a major change order or a growing change-order log? Contact Kestrel for a focused, independent owner-side assessment before approval.