A change order is a written, signed amendment that updates the project scope, contract price, and schedule, and it must be documented, priced, and signed before added work proceeds. When the owner, contractor, and architect all sign, the change becomes legally part of the contract. Getting there cleanly means following a formal workflow: request, document, price, approve, sign.
TL;DR:
- Change orders must be signed by the owner, contractor, and architect before any new work becomes legally part of the project.
- Hidden conditions and design errors frequently trigger change orders in remodels, often requiring documentation and pricing before work resumes.
- Using a Construction Change Directive is suitable for urgent work, but it should be converted into a signed change order once prices are available.
- Every change order should include a specific description, exact cost adjustment with backup, time impact, and signatory details to avoid disputes.
- Proper field procedures, clear documentation of hidden issues, and disciplined approval workflows significantly reduce change-order conflicts.
Table of Contents
- What a change order is and how it differs from ASI, CCD, and RFI
- Common reasons change orders happen on remodels
- Step-by-step change order workflow for remodels
- The six essential elements to include in every change order
- How to negotiate and approve change orders without creating disputes
- Field procedures for hidden or concealed conditions
- Standard forms and practical templates for change orders
- Best practices checklist: reducing change-order friction
- Practitioner perspective: field rules that actually hold up
- FAQ
- Sources
What a change order is and how it differs from ASI, CCD, and RFI
Under AIA A201 contract language, a change order is the formal instrument that amends the contract sum, the contract time, or the scope of work, and it only takes legal effect once the owner, contractor, and architect sign it. Before that signature, several other documents often do the groundwork. An Architect’s Supplemental Instruction (ASI) handles minor clarifications that do not change cost or schedule. A Construction Change Directive (CCD) lets an architect or owner direct work to proceed before a price is agreed, which keeps the project moving when time is tight. A Request for Information (RFI) simply asks a question to resolve ambiguity in the drawings or specs.
None of these substitutes for a signed change order when money or time actually shifts. We’ve seen homeowners assume a verbal “yes, go ahead” settles the matter, but AIA contract guidance ties the change order process to a specific sequence: a proposal request, an ASI, a CCD, an RFI, or a direct request for a change order, kicks off the review, and the contractor’s proposal moves it toward signatures.
Common reasons change orders happen on remodels
Remodels expose decisions and conditions that new construction never has to deal with, which is why change orders are routine rather than a sign something went wrong.
- Owners change selections (tile, fixtures, appliances) after demolition has already started.
- Demolition reveals hidden conditions such as rot, outdated wiring, old plumbing, or materials requiring special handling.
- Design errors or incomplete specifications leave gaps that surface once work begins.
- Permit inspectors flag code issues, suppliers substitute materials, or delivery delays push the schedule.
Stimmel Law’s analysis of change order disputes points to defective specifications, nondisclosure, and latent conditions as recurring drivers, alongside straightforward owner-driven changes. Setting that expectation with clients up front, before demo day, heads off a lot of friction later.
Step-by-step change order workflow for remodels
A change rarely starts with a form. It starts with a question, a discovery, or a client’s new idea, and then moves through a predictable sequence toward a signature.
- Initiation: the change begins with a proposal request, an RFI, a direct owner request, or a CCD when urgent work can’t wait for pricing.
- Proposal: the contractor prepares a written proposal showing the cost adjustment and the schedule impact in days or a revised completion date.
- Review: the architect or project manager checks the proposal for reasonableness and whether it affects the critical path.
- Approval and signatures: once terms are agreed, the owner, contractor, and architect sign, formally amending the contract.
- Update records: the schedule, budget, and change-order log all get updated so nothing falls through the cracks.
A partner resource outlining an 8-step change order process breaks this same sequence down further for contractors managing multiple trades at once, which is worth a look if you’re coordinating a larger remodel.
Pro Tip: Use a CCD only when waiting for a fully priced change order would stall the job; convert it into a signed change order as soon as pricing is finalized.
The six essential elements to include in every change order
A change order that’s missing even one of these fields creates room for a dispute later. Procore’s guide to AIA G701 treats these as the baseline for a document that will hold up if questioned.
- A clear, specific description of the changed work, referencing the relevant drawing or document.
- The exact cost adjustment, with pricing backup like supplier quotes, unit costs, or allowance figures attached.
- The time impact, stated as a number of added days or a new completion date, with the reasoning behind it.
- Dates, the names and contact information of all signatories, and a list of every attachment.
- Allowance reconciliation showing how actual costs compare to the original allowance.
- Clear markup rules, so everyone knows what overhead and profit percentage applies and what’s excluded.
Our guide to avoiding unexpected allowance markups walks through how reconciliation should work so a $500 allowance doesn’t quietly become a $700 line item without anyone noticing.
How to negotiate and approve change orders without creating disputes
Good negotiation starts with stopping the clock, not rushing to a number. When a change surfaces, pause the affected work, document the condition thoroughly, and lay out the options for the client before anyone commits to a price.
Watch for red flags in a proposal: line items that double-count labor already covered elsewhere, or overhead and profit percentages that don’t match what was agreed in the original contract. Ask for a breakdown if the number looks padded.
Authority matters too. Confirm who can actually sign for the owner and who can sign for the contractor, and insist on written approval, never a verbal “that’s fine, go ahead.” Our list of questions to ask a remodeler includes exactly this kind of authority check. When urgency demands a CCD to direct work immediately, convert it to a signed change order as soon as pricing lands. AIA G701 instructions note that many parties sign in triplicate or use signed PDFs tied to invoices, which keeps the paper trail intact.
Field procedures for hidden or concealed conditions
Remodels, by nature, hide surprises behind existing walls and floors. A practitioner guide on concealed conditions recommends partial exploratory demolition before finalizing pricing, since it catches problems while there’s still room to adjust the scope without blowing the budget.
When a crew uncovers something unexpected, the sequence matters:
- Make the area safe first.
- Pause the affected work so nothing gets covered up or damaged further.
- Photograph the condition from multiple angles.
- Write a factual note describing exactly what was found.
- Compare it against the original scope to confirm it’s genuinely outside the contract.
- Price the added work and get written approval before resuming.
Specialist inspection, mold testing, or a permit revision may need to happen before pricing can be finalized. Building in allowance or guaranteed-maximum language from the start limits how exposed either party is when this happens.
Pro Tip: Never let a crew keep working past a discovered condition on a verbal “it’s probably fine.” Document first, price second, sign third.
Standard forms and practical templates for change orders
AIA G701 is the industry-standard change order form, and it’s authoritative because it requires the same fields every time: a description of the change, the contract-sum adjustment, the contract-time adjustment, and signatures from the owner, contractor, and architect. Populating the cost and time fields accurately means attaching the supporting quotes, unit pricing, or schedule analysis that justifies the number, not just writing a total.
For a smaller remodel, a short-form change order can work fine as long as it still carries the same core fields and a signature, so it remains auditable if a dispute ever comes up later.
Best practices checklist: reducing change-order friction
A little discipline before the project starts and during the work itself cuts down on both the number and the cost of change orders.
- Before bidding: verify site conditions directly, write down every assumption and exclusion, and set realistic allowances.
- During the job: set firm selection deadlines, enforce a stop-work rule for undocumented changes, and accept written approvals only.
- On the admin side: keep a running change-order log, update the budget and schedule as each one is signed, and reconcile allowances at each milestone.
| Phase | Key action | Why it matters |
|---|---|---|
| Pre-bid | Verify site conditions and set allowances | Reduces hidden-condition surprises |
| Field | Enforce stop-work and written-approval rules | Prevents verbal-approval disputes |
| Admin | Maintain change-order log and reconcile allowances | Keeps budget and schedule accurate |
Practitioner perspective: field rules that actually hold up
A signed change order protects everyone. A verbal one protects no one.
We built our 24 to 72 Hour Rule around that reality: minor or emergency approvals get a quick turnaround window, but every one of them still gets documented and signed within that window, never left as a handshake. Our 24 to 72 Hour Rule page explains how we apply it on active jobs.
One habit worth adopting: define allowance reconciliation clearly in the contract and list exclusions up front. It’s the single best way to avoid an unexpected markup landing on your final invoice.
— Christy Trussell
FAQ
What is the difference between a change order and a CCD?
A change order is signed by the owner, contractor, and architect and immediately amends the contract. A Construction Change Directive lets work proceed before a final price is agreed, and it should be converted into a signed change order once pricing is settled.
What should every change order include?
A complete change order describes the changed work, states the exact cost adjustment with supporting backup, and spells out the time impact in days or a new completion date. It also needs dates, signatory contact information, and a list of attachments, following the structure in AIA G701.
How do I handle a hidden condition discovered during demolition?
Stop the affected work immediately, photograph the condition, and write a factual note describing what was found before pricing anything. Legal guidance on hidden change orders treats undisclosed or latent conditions as one of the most common sources of construction disputes, so documentation before resuming work matters.
Can a contractor start work before a change order is signed?
Work tied to a genuine emergency or safety issue sometimes needs to start before signatures are complete, but it should still be documented immediately and formalized within a short window, such as our 24 to 72 Hour Rule. Routine scope changes should always wait for a signed change order first.
Who needs to sign a change order to make it valid?
A change order becomes part of the contract once the owner, the contractor, and the architect (when one is involved) all sign it. AIA G701 instructions note that parties often sign in triplicate or use signed PDFs to keep a clear record tied to invoices.
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