What is a Change Order in Construction?

Change is almost guaranteed in construction projects. Even the most detailed plans can encounter surprises once work begins.
Design adjustments, unexpected site conditions, or client requests often mean the original contract no longer fits the reality of the job.
That’s where a change order comes into play.
A change order is a formal document that updates a contract’s scope, costs, or timeline. It protects both the contractor and the client by ensuring everyone agrees to changes before the work proceeds.
According to Autodesk, about 35% of construction projects experience at least one major change during their lifecycle.
Without proper documentation, these changes can lead to disputes, delays, and budget overruns.
In this article, we’ll explain what change orders are, explore the different types, and show why managing them effectively is essential for keeping projects on track.
What Is a Change Order in Construction?
A change order is a formal amendment to the original construction contract. It adjusts the agreed-upon scope of work, the project schedule, or the total cost.
In simple terms, it documents changes so that both the contractor and the client know exactly what is expected moving forward.
Change orders exist to prevent misunderstandings. Without them, small adjustments could lead to major disputes about who is responsible for extra work or costs.
For example, if a client asks for upgraded materials, a change order ensures that the added expense and time are written down and approved before work begins.
Additionally, change orders are legally binding documents. They must be signed by all parties, such as the owner, contractor, and sometimes the architect, to be valid.
Once approved, the change order becomes part of the official contract. This clear documentation protects relationships and helps projects run more smoothly.
You can also read: The Basics of Construction Project Management.
Why Do Change Orders Matter in Construction?
Change orders are important because they protect contractors from scope creep. Without them, a client might request extra work that was never part of the original agreement.
Over time, these additions can strain budgets and schedules if they are not documented properly.
For clients, change orders provide clarity. They show how a request will affect both the cost and the timeline of a project. This helps owners make informed decisions about whether to move forward with a change or keep the original plan.
Change orders also reduce disputes. Since every adjustment is written, approved, and signed, all parties share the same understanding of the new expectations. This alignment prevents finger-pointing when challenges arise.
By proper change order management, both contractors and clients gain transparency and accountability.
In an industry where projects are complex and delays can be costly, having a clear process for handling modifications makes a big difference.
3 Types of Construction Change Orders
Not all change orders are the same. They generally fall into three main categories, each with a different impact on the project.
1. Additive Change Orders
It expands the original contract by increasing scope, cost, or time.
For example, a homeowner may request an outdoor patio addition after construction has started.
Moreover, this type of change order outlines the new work, adjusts the budget, and extends the schedule to account for the extra labor and materials.
2. Deductive Change Orders
It reduces the scope of work and lowers the project’s cost. Suppose a client decides to remove a planned storage room to cut expenses.
A deductive change order documents the change, updates the drawings, and adjusts the final contract value to reflect the reduced workload.
3. Zero-Cost or Time-Only Change Orders
It does not affect the budget but modifies the project schedule. A common example is a weather delay.
Work may need to stop for several days, but the cost of labor and materials does not change.
Instead, the schedule is updated to show the new completion date.
By classifying change orders into these categories, contractors and clients can clearly understand how each adjustment affects the project and address it properly.
When Should You Use a Change Order in Construction?
Change orders are necessary whenever the original contract no longer reflects the actual work required. Here are some examples:
- Design changes requested by the client: An owner may decide mid-project to upgrade finishes, add new features, or alter the layout. These requests affect cost and schedule, making a change order essential.
- Unforeseen site conditions: A contractor might uncover poor soil, hidden utility lines, or structural issues once construction begins. These surprises demand adjustments to scope and budget.
- Regulatory or code updates: If new safety or environmental rules take effect during construction, plans may need revision to stay compliant.
- Errors or omissions in the original plan: A missing detail in drawings or a miscalculation in specifications can cause delays unless formally corrected.
By documenting these situations with a change order, both clients and contractors maintain transparency and avoid disputes while ensuring the project moves forward smoothly.
You can also read: 5 Things General Contractors Can Do Today To Reduce Stress.
5 Things to Include in Construction Change Orders
A well-prepared change order should clearly outline every detail of the modification. Here are the key things that you should include in change orders:
- Description of the change so that all parties know exactly what work is being added, removed, or adjusted. The description should be specific enough that there is no room for confusion later.
- Reason for the change. Whether it is a client request, an unforeseen site condition, or a code update, documenting the cause provides context and justification.
- The cost impact is one of the most important elements. This section should show whether the change increases or decreases the contract value, with a clear breakdown of labor, materials, and other expenses.
- If the project timeline is affected, include schedule adjustments. Even small changes can push back delivery dates, so it is critical to document revised milestones or completion deadlines.
- The signatures of all parties. A change order is legally binding only when signed by the client, contractor, and any other relevant stakeholders.
Strong documentation protects everyone involved. It ensures transparency, reduces the risk of disputes, and provides legal and financial security throughout the project.
Construction Change Order vs. Construction Change Directive (CCD)
A change order is a formal agreement between the contractor, owner, and often the architect that modifies the original contract.
It covers adjustments in scope, cost, or time, and it becomes valid only when all parties review and sign it.
This makes change orders collaborative and ensures that everyone agrees on the new expectations before work continues.
On the other hand, a construction change directive (CCD) allows the owner or architect to instruct the contractor to move forward with changes even if the cost or schedule impact is not yet finalized.
The contractor must carry out the work, and the financial details will be resolved later.
Moreover, the key difference is that change orders rely on mutual agreement, while CCDs are unilateral directives.
Additionally, change orders promote alignment and clarity, while CCDs give owners the flexibility to keep projects moving when time is critical.
Both tools are useful, but change orders remain the preferred method for reducing disputes and maintaining transparency.
What is a Prime Contract Change Order (PCCO)?
A Prime Contract Change Order (PCCO) is a formal modification to the prime contract between the project owner and the general contractor.
It changes the overall agreement by adjusting scope, cost, or schedule at the highest level of the project.
PCCOs are different from subcontractor change orders, which affect only a specific trade or subcontractor agreement. Because the prime contract sets the foundation for the entire project, changes made here often cascade down to subcontractors and suppliers.
For example, if the owner requests upgraded energy-efficient windows across an entire building, that change alters the prime contract.
Also, it impacts subcontractors handling framing, glazing, and installation.
Documenting PCCOs carefully is critical because they directly impact budgets, timelines, and responsibilities across the whole project.
By keeping these modifications transparent and signed by all parties, project owners and contractors maintain accountability and reduce the risk of disputes.
Challenges with Change Orders in Construction
While change orders are essential for keeping projects aligned, they can also create challenges when not managed well.
A poorly timed or unclear change order can delay schedules and increase costs.
For example, adding new work in the middle of construction may require rescheduling crews, adjusting material orders, and extending the project timeline.
Miscommunication is another risk.
If all parties do not fully understand the scope, cost, or timing of a change, it can lead to disputes between owners, contractors, and subcontractors. These conflicts not only strain relationships but can also stall progress on the site.
That is why clear processes are critical.
Each change order should include a written description, cost impact, timeline adjustment, and signatures from the responsible parties.
With proper documentation and communication, change orders serve as tools for transparency instead of sources of conflict.
How Technology Simplifies Change Orders
In this today’s world, digitalization is transforming construction project management, including change order management.
Managing change orders with paper forms or email chains is often slow and prone to mistakes.
Missing signatures, lost documents, or outdated versions can create confusion and delay progress.
That’s where SuperConstruct, trusted construction project management software, comes into play.
SuperConstruct simplifies the entire change order management process by automating key steps. For example:
- Digital approval workflows ensure that all parties review and sign off quickly.
- Real-time updates show how each change affects costs and schedules, giving teams instant visibility.
- Construction documentation management keeps everything in one place, so no one is working from outdated files.
By moving change orders into a digital system, SuperConstruct reduces delays and improves collaboration.
Contractors, owners, and subcontractors stay aligned, making it easier to adapt to changes without losing momentum.
You can also read: Construction Project Management: Manual Workflow vs. SuperConstruct.
Conclusion
Change orders are a vital part of construction projects. They give teams the flexibility to adapt when designs shift, site conditions change, or clients make new requests.
But without proper management, they can also lead to confusion, disputes, and costly delays. Clear documentation and timely approvals are key to keeping projects on track.
With the right digital tools, contractors can simplify this process, improve collaboration, and protect their budgets.
Explore how SuperConstruct can help streamline your change order process and keep projects moving forward.
Frequently Asked Questions
1. What is the purpose of a change order in construction?
A change order documents adjustments to the project scope, budget, or timeline. Its main purpose is to keep agreements transparent and ensure both the contractor and client approve changes before work continues.
2. What is an example of a change order in construction?
If a client decides to add a new patio space, this would be an additive change order since it increases both scope and cost. If they choose to remove a planned storage room, that’s a deductive change order because it reduces the amount of work and overall budget. A zero-cost or time-only change order could extend the project timeline due to heavy rain, which doesn’t affect the budget but shifts the schedule.
3. Are change orders good or bad?
Change orders themselves are neutral. They give projects flexibility, but frequent or poorly managed ones can raise costs and cause delays. When tracked properly, they ensure fairness and accountability for both sides.
4. Who is responsible for change orders in construction?
Contractors typically prepare the change order, but the client or project owner must review and approve it. Both parties share the responsibility to confirm terms before any adjustments are made.
