Scope Description
Concise, measurable description of additional work including dimensions, finish, and exact locations; specify drawings or photos by reference to avoid ambiguity.
A focused addendum reduces ambiguity, sets payment and schedule expectations, and creates an auditable change order record to help prevent disputes and ensure proper permitting and invoicing.
Completed and signed addenda should be retained with the prime contract and distributed to accounting, permitting, and site teams.
Concise, measurable description of additional work including dimensions, finish, and exact locations; specify drawings or photos by reference to avoid ambiguity.
List specific materials, manufacturer models, colors, and finish standards. Reference product data sheets or samples when quality affects acceptance or warranty.
Clarify access windows, staging zones, power/water availability, rooftop anchorage, and any traffic-control or sidewalk protection requirements.
State unit pricing, lump-sum totals, payment milestone triggers, retainage (if any), and contingency allowances for unforeseen conditions.
Note expected start and finish dates, dependencies with primary work, and any liquidated damages or penalties tied to critical milestones.
Specify which party obtains permits, inspection timing, permit fees responsibility, and documentation required for final acceptance.
| Form Field Name and Configuration | Form Field Name | Online Configuration and Behavior |
|---|---|
| Signature field placement and settings | Signature | Required; signer must sign to complete |
| Date field formatting and validation | Effective Date | MM/DD/YYYY format; auto-fillable on signature |
| Conditional cost line visibility | Additional Cost | Show only if change selected |
| Attachment and file upload options | Supporting Docs | Allow PDF or JPG upload; required if permits apply |
| Signer authentication mode and order | Signer Auth | Email link or SMS code; sequential signer order |
Use a platform that preserves an audit trail, retains attachments, and integrates with project or accounting systems for invoicing and permit filing.
Export the signed addendum as a flattened PDF for archiving and as a native DOCX if future edits are required; include attachments and embedded photos.
Preserve a signing certificate or audit trail that records signer identity, timestamps, IP address, and actions to support enforcement or permit review.
Provide a printer-friendly layout that includes signature blocks, stamps, and appended permit numbers so inspectors can carry physical copies to site visits.
Store final records in your document management system or cloud storage in PDF/A or standard PDF to ensure long-term readability and retrieval.
Allow 7–30 days depending on local jurisdiction and permit complexity.
Specify response time (commonly 3–7 business days) for acceptance or revision requests.
Record agreed start date and any site preparation required beforehand.
Define deposit, progress, and final payment dates tied to completion milestones.
Schedule inspections within contractor-reported completion windows to obtain final sign-off.