What is a change order in construction?

A formal written amendment to the construction contract that adjusts scope, price, or schedule. It is signed by the owner, the contractor, and (usually) the architect. The standard form is AIA G701.

What is the difference between a change order and a CCD?

A change order is signed by both parties before the work is performed. A Construction Change Directive (CCD, AIA G714) is unilaterally issued by the owner when the parties cannot agree on price or schedule but the work must proceed. The contractor gets paid eventually but argues the price after the fact.

Can a contractor refuse a change order?

A contractor can refuse a change order if it materially alters the scope beyond the contract. For most modest changes, the contractor must perform the work but can dispute price and schedule impact through the contract dispute resolution process.

How long should a change order take to process?

A simple credit or add: 5 to 10 business days. Anything that requires sub pricing or design clarification: 2 to 4 weeks. Owners frequently sit on change orders longer than that, which is when the trouble starts.

What is the most common cause of change order disputes?

Verbal directives. The owner asks for the change in person, the contractor performs the work, and then the parties disagree about whether it was in scope. Always confirm verbal direction in writing the same day, ideally as an RFI or change order request.

Can AI generate a change order?

Yes. ConstructionBear drafts a complete G701-style change order from a chat message including line items, totals, schedule impact, and contract sum tracking. The mechanical work is fully automatable; the negotiation is not.

Who signs a change order?

Usually three parties: the owner (or their authorized rep), the contractor, and the architect (as a recommendation, not as authorization). On owner-builder contracts the architect signature may not apply.

Change Order Best Practices

When to issue a change order, what to include, the AIA G701 walkthrough, and the disputes that actually happen on jobsites.

By Dov Cohen · Published April 27, 2026 · Updated April 27, 2026

Change orders are where contractors make money or lose money. The work itself is rarely the problem. The paperwork is. A change order written sloppily, priced lazily, or signed late is the single biggest cause of profit erosion on commercial projects. This guide walks through how to issue a clean change order, what AIA G701 actually requires, and the disputes that show up on every job whether you want them to or not.

What a Change Order Is

A change order is a formal written amendment to the construction contract. It changes one or more of three things: the scope of work, the contract price, or the contract time. Once signed by all parties, it is enforceable as part of the contract.

The standard industry form is AIA G701, "Change Order." Most owner-drafted contracts modify or replace G701 with their own form, but the structure is similar. If your contract uses ConsensusDocs or a custom owner form, the bones are the same.

When to Issue a Change Order

Owner-directed change. Owner adds or removes scope. Always a CO.
Design change. Architect issues an ASI or revised drawings that change the cost or duration of the work. CO if the change has cost or schedule impact.
Differing site conditions. Hidden conditions encountered during the work (rock, utilities, asbestos, water table) that were not disclosed in the contract documents.
Contract document errors or omissions. The drawings and specs are inconsistent or incomplete in a way that increases cost or duration.
Government action. Code change, permit change, or new authority requirement that increases scope.
Force majeure that the contract makes the owner's risk. Many contracts allocate certain delays to the owner; they generate time-only or time-and-money COs.

When NOT to issue a CO: things that are clearly the contractor's risk under the contract (productivity, sub default, weather within the float allowance), or things that are absorbed by the contingency.

Step by Step

Confirm the change in writing within 24 hours. If the owner verbally directs a change, send a written confirmation that day. Email is fine. Reference the date, the request, and that you are pricing it. Verbal directives that go unconfirmed become disputes.
Price the change accurately and conservatively. Get sub pricing in writing. Add overhead and profit per the contract (often 10% O+H, 5% bond, 2% insurance, varies). Do not lowball; you cannot recover the difference later. Show the math by line item.
Quantify the schedule impact. Days added to substantial completion, by trade affected. If the change is on the critical path, document it. Sequencing impacts on non-critical-path activities should be noted but priced separately if they cause acceleration.
Draft the change order on AIA G701 (or contract equivalent). G701 has the original contract sum, the sum of prior approved CO, the sum being changed by this CO, and the new contract sum. Substantial completion date adjustment if applicable. Signature blocks for owner, contractor, architect.
Route through the architect first. Standard AIA flow is contractor to architect to owner. The architect reviews the price and recommends approval. If the architect disputes the price, settle that before the owner sees it.
Get signatures before performing the work. Whenever possible, do not perform changed work without a signed CO. If schedule pressure forces you to proceed, get at minimum a signed Construction Change Directive (G714) or written email authorization to proceed at risk.
Update the contract sum and CO log. Every approved CO updates the running contract sum. Maintain a CO log with number, date, description, amount, schedule impact, and status (pending, approved, rejected). The CO log feeds your pay app.

AIA G701 Walkthrough

G701 is one page. Every line matters. Here is what each section is for.

Header

Project name, owner, contractor, architect, date, change order number. Numbering is sequential per project. The contract reference (date and contract number) ties the CO to the original prime contract.

Summary of Change

One paragraph describing what is being changed. Reference the source document (RFI 047, ASI 12, owner email dated 2026-04-23). If the change involves multiple items, summarize at the top and itemize below.

Itemized Pricing

Line by line, broken out by trade if multiple subs are involved. Each line shows quantity, unit, unit price, and total. Add overhead and profit per the contract markup. Show the math; do not just send a lump sum.

Contract Sum Tracking

G701 has four sums on the page:

Original contract sum.
Net change by previously authorized COs.
Contract sum prior to this CO.
Contract sum after this CO.

Numbers must reconcile. Most disputes that escalate to litigation start with a CO that does not reconcile against the running contract sum.

Substantial Completion Date

State whether the date is changed and by how many days. If the date is unchanged, write "unchanged." Do not leave blank.

Signatures

Architect first (recommendation), contractor, then owner. The architect is recommending; the owner is authorizing. The CO becomes effective on the latest signature date.

Common Change Order Disputes

1. Verbal Directives

The owner asks the super for a change verbally on a Friday afternoon. The super does the work. On Tuesday the owner says they did not authorize anything. Resolution: always confirm verbal direction in writing the same day, ideally before any work is performed. If the owner pushes back on the confirmation, that is the moment to escalate, not a month later.

2. Disputed Pricing

Contractor prices a change at $48,000. Architect counters at $32,000. Resolution: show the math. If the difference is overhead and profit markup percentages, cite the contract. If the difference is sub pricing, share the sub quotes. The CO process is auditable; do not pretend it is not.

3. Time-Only Change Orders the Owner Refuses

A delay change order with no money attached is the one owners are most likely to reject. Documentation is what wins these. Daily logs showing the delay, RFIs cited, sub correspondence. Without contemporaneous records, you will lose the time argument.

4. CCDs That Never Become Change Orders

Owner issues a CCD (G714) authorizing work to proceed at a price to be determined. Contractor performs. Six months later the owner refuses to convert the CCD into a CO. Resolution: the contract usually requires conversion within a defined window. Cite that. If the contract is silent, you have an arbitration claim, not a CO problem.

5. Constructive Change Orders

The architect's interpretation of an ambiguous spec causes you to perform work that costs more than you bid. The architect refuses to issue an ASI because they argue the original scope already required it. Resolution: file the CO request anyway. Document the interpretation. Most contracts have an explicit "constructive change" claim path. Use it.

6. Cumulative Impact

You absorbed twelve small COs that each individually were minor. Cumulatively they delayed the project six weeks and reduced productivity 15 percent. Resolution: cumulative impact claims are real but require a productivity baseline, expert testimony, and time. They are recoverable, but only with the records.

Sample Change Order

Change Order 014 · AIA G701 Style

Project: 415 Madison — Tenant Improvement
Owner: Madison Holdings LLC
Contractor: Bravura Construction
Architect: Smith & Jones Architects
Contract Date: 2026-01-15
Change Order Number: 014
Date: 2026-04-27

Summary: Owner-directed change to upgrade corridor finish from GWB-1 to GWB-2 (Type X moisture resistant) per RFI 047 response, with associated paint and trim modifications.

Itemized Pricing:

GWB-2 in lieu of GWB-1, 220 lf of corridor return: $1,540 (matl + lab)
Paint coverage adjustment: $620
Trim rework at four jambs: $480
Sub overhead and profit (10%): $264
GC overhead and profit (15%): $436
Total this CO: $3,340

Original Contract Sum: $4,820,000.00
Net Change by Previous COs (1-13): $87,420.00
Contract Sum Prior to This CO: $4,907,420.00
Contract Sum After This CO: $4,910,760.00

Substantial Completion Date: Unchanged.

How AI Helps With Change Orders in 2026

Change orders are templatable in form but not in judgment. The AI workflows that work today:

Drafting the G701 form. A one-line description plus line items in becomes a complete formatted CO out, including the contract sum reconciliation.
Maintaining the contract sum running total. Every approved CO updates the running sum automatically. No more hunting through spreadsheets to find the correct prior contract sum.
CO log maintenance. Status tracking, pending vs approved, by trade.
Tying COs to source documents. Each CO carries forward references to RFI numbers, ASIs, daily log entries.
Pay app integration. Approved COs flow into the next G702/G703 automatically as line items.

What AI does not do (and should not do): negotiate the price, judge whether a change is owner risk or contractor risk, or sign on your behalf. ConstructionBear handles the mechanical end and leaves the judgment to you. Get early access here.

Internal Links

ConstructionBear home — AI change orders in seconds.
RFI Guide 2026
AIA pay app explained
ConstructionBear vs Procore

External Reading

For longer-form essays on construction contracts and disputes, see Builders Digest.

Frequently Asked Questions

What is a change order in construction?: A formal written amendment to the construction contract that adjusts scope, price, or schedule. It is signed by the owner, the contractor, and (usually) the architect. The standard form is AIA G701.
What is the difference between a change order and a CCD?: A change order is signed by both parties before the work is performed. A Construction Change Directive (CCD, AIA G714) is unilaterally issued by the owner when the parties cannot agree on price or schedule but the work must proceed. The contractor gets paid eventually but argues the price after the fact.
Can a contractor refuse a change order?: A contractor can refuse a change order if it materially alters the scope beyond the contract. For most modest changes, the contractor must perform the work but can dispute price and schedule impact through the contract dispute resolution process.
How long should a change order take to process?: A simple credit or add: 5 to 10 business days. Anything that requires sub pricing or design clarification: 2 to 4 weeks. Owners frequently sit on change orders longer than that, which is when the trouble starts.
What is the most common cause of change order disputes?: Verbal directives. The owner asks for the change in person, the contractor performs the work, and then the parties disagree about whether it was in scope. Always confirm verbal direction in writing the same day, ideally as an RFI or change order request.
Can AI generate a change order?: Yes. ConstructionBear drafts a complete G701-style change order from a chat message including line items, totals, schedule impact, and contract sum tracking. The mechanical work is fully automatable; the negotiation is not.
Who signs a change order?: Usually three parties: the owner (or their authorized rep), the contractor, and the architect (as a recommendation, not as authorization). On owner-builder contracts the architect signature may not apply.