Costs, scheduling and evidence
Construction change-order log template
A change-order log records every change to scope, price and time, with who requested it and who approved it. Keep it current so the final account is never a surprise.
A change-order log is a single running list of every change to a construction contract: what changed, why, who asked, who approved, and what it did to price and time. The worksheet below sets out the fields. Used consistently, it makes the final account a sum of known entries rather than a negotiation.
Why logs matter
Most disputes about cost or delay trace back to a change that was agreed informally. A log creates a shared record and a habit: nothing is built until it is written down. It also shows patterns, such as many design-error changes, which are worth fixing upstream.
Fields to keep
| Field | Purpose |
|---|---|
| Reference and date | Unique identifier and timeline |
| Description and documents affected | Exactly what changes |
| Requested by and reason | Who is responsible and why |
| Price effect | Increase, decrease or nil, with supporting quote |
| Time effect | Impact on the program |
| Review and approval | Technical check and authorised signatory |
| Status | Where the change stands |
Use the worksheet
Fill the prompts for each change and copy the result into your log spreadsheet or project system. Keep the signed approval with the entry. Keep price and time effects separate: a change can be cost-neutral and still add weeks.
Where changes come from
- Owner requests: upgrades, layout changes. Best made before design freeze (see design freeze).
- Design coordination: clashes between structure, services and envelope.
- Supplier substitutions: record them as in recording substitutions, and have the designer approve.
- Site conditions: ground, access or existing structure surprises.
- Authority requirements: conditions added during approval.
Link it to scope and risk
A clear scope matrix reduces disputed changes, because it shows what was originally in whose scope. Recurring change types belong on the risk register.
Limits
Contracts set the rules for valuing and approving changes, and local law may add requirements. Use this log to track, and take legal or professional advice on contract terms.
Questions people ask
What is a change order?
A written agreement to change the scope, price or time of a contract. Your contract defines the exact process and who can sign.
Why log changes that cost nothing?
Zero-cost changes can still affect time, quality or other trades. A log shows the full history.
Should I approve verbal instructions?
Avoid it. Confirm in writing before work starts, with price and time effect where possible.
Does this replace my contract process?
No. Follow the contract. The log helps you track what the contract process produces.
Sources and further reading
Have a project outline or drawings?
Organize your scope, then contact Digital Oro through its official channel. Availability, engineering, pricing and delivery terms need project-specific confirmation.
Explore Digital Oro →Digital Oro International advertises on The Company Chronicle. This guide was written by our editorial team from public sources and general professional practice; it does not describe a guarantee, quote or offer from Digital Oro International. Confirm current terms, prices and availability with the operator before you decide.