How to write your Contract Change Form (During Development)
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Use cases for this template
HarborBuild Adds Rooftop Solar for Summit Realty Mid-Project
The Challenge
A sudden city sustainability ordinance created an event that changed the project scope on Summit Realty's mid-rise, with implications for schedule, materials, and budget that could lead to project delays or even failure if not handled with care and consideration.
The Solution
HarborBuild used a contract addendum to the original construction contract to formalize the proposed change, while Proposal Kit's valuable tools generated supporting documents: an AI Writer-produced impact report and stakeholder brief, a document-assembled implementation plan covering different types of construction change, and automated line-item quoting to estimate panels, wiring, labor, and crane time without altering the legal template itself.
The Implementation
The project team worked with the owner and architect to determine the extent, schedule impacts, and any time extensions to contract time, then complied with approval procedures; once approved, the change was implemented in phases, tracked against the contract sum, and logged to maintain a clear audit trail and fast response to field questions.
The Outcome
The addition contributed new building value, the parties involved avoided disputes, and the project's timeline stayed intact, supported by proper documentation that demonstrated compliance and reduced risk across all aspects of the change.
LumenSoft Expands BrightBank's App with Real-Time Alerts
The Challenge
Regulatory guidance required real-time fraud alerts, forcing a material scope adjustment late in development with implications for data pipelines, testing, and milestone dates that could lead to costly rework.
The Solution
LumenSoft executed a change addendum for schedule and budget adjustments, then used Proposal Kit to create supporting documents: an AI Writer security assessment, incident-response runbook, and stakeholder FAQ, plus line-item quoting for new sprints and cloud resources to show value and cost in clear detail.
The Implementation
Management analyzed potential effects, determined necessary resources, prioritized tasks, and routed approvals in accordance with procedures; after approval, engineers implemented the alert service behind feature flags while documentation assembly produced status reports and a rollout plan to keep key stakeholders aligned.
The Outcome
BrightBank launched on time, auditors verified a clear audit trail, and the organization complied with requirements while minimizing delays and avoiding disputes through disciplined process and trackable documentation.
GreenArc Marketing Scales BlueSky Resorts' Campaign to New Markets
The Challenge
A strong booking surge revealed untapped regional demand, and BlueSky asked for added channels and languages, a change with budget and schedule implications that touched creative, media, and analytics aspects mid-flight.
The Solution
GreenArc formalized the order request with a contract addendum and relied on Proposal Kit for supporting work: AI Writer produced a market study and channel plan, document assembly generated a revised SOW and governance matrix, and line-item quoting detailed media buys, localization, and analytics tags so parties could decide with full consideration.
The Implementation
The team determined scope boundaries, compliance needs, and schedule impacts, then implemented the expansion in waves; change details, approvals, and costs were logged to track adjustments to the contract sum and ensure a timely response to executive questions.
The Outcome
The campaign scaled without overruns, contributed measurable revenue in the new markets, and maintained a clear audit trail that kept leadership confident, and the project was managed effectively from request through completion.
Abstract
This contract addendum is a practical tool for managing project changes while preserving control over scope, schedule, and budget. It amends an original contract when parties involved request additional goods or services. For project management, it provides proper documentation so key stakeholders, such as the owner, contractor, architect, project managers, and the project team, can verify necessary information, assess potential effects, and decide how to implement such changes in accordance with established procedures and industry practices.
The form captures a description of the proposed change, change details, and delivery date or milestone impacts, enabling a clear audit trail. It states that authorized changes may affect the project's timeline and requires written approval by both parties, which is important to avoid disputes. An Entire Agreement clause confirms that only signed written modifications control, and a Binding Effect clause defines responsibilities and limits assignment without consent. Payment terms are Net 30 with interest on past-due accounts, reinforcing compliance and accountability.
In use, the process typically begins when new information arises or order requests occur. Management evaluates the extent of the proposed adjustments, performs analysis and assessment of schedule impacts, resources, materials, and budget, and determines whether time extensions or changes to the contract time are warranted. The Total line allows the organization to record the value of the change and track adjustments that may affect the contract sum. Clear communication and approved documentation are critical to control risk, maintain progress, and demonstrate a clear audit trail if questions later arise under the law.
Construction projects often rely on change order requests, construction change directives, or an AIA document to manage material changes to a construction contract. This addendum can support that process by capturing rationale, evaluation, and implementation steps so the parties agree on priority, timing, and responsibilities. When managed, these procedures reduce project delays and help ensure success.
Examples include adding software features mid-sprint, substituting higher-grade construction materials, expanding marketing deliverables, or responding to new project requirements uncovered during testing. In each instance, the form helps track what will happen, who is responsible, and how the schedule will be managed.
Proposal Kit can help organizations generate these documents efficiently using document assembly, automated line-item quoting, an AI Writer to build supporting materials, and an extensive template library designed for ease of use.
Beyond documenting costs and dates, a well-structured addendum aligns every proposed change to the project scope so leaders can judge implications before work is implemented. Different types of changes-feature additions, materials substitutions, acceleration, or deferrals- each carry schedule, budget, and quality topics that require careful consideration. In the event new information surfaces, the change process helps the parties determine whether the request is material, what resources it will require, and how it will contribute to or risk failure of downstream tasks.
It is crucial to map responsibilities, acceptance criteria, and progress checkpoints, and to comply with approval steps so decisions do not lead to disputes later. Capturing rationale, risk notes, and a management response provides context for future audits and helps teams keep momentum.
For business stakeholders, a disciplined change addendum reduces uncertainty and creates a repeatable path from idea to action. It clarifies who approves, who funds, and how the change will be implemented, while measuring effects on value and timeline. The same procedure scales across different types of organizations-construction, software, marketing, and professional services- so key stakeholders can compare options side by side and make faster, better decisions.
Proposal Kit offers valuable tools that help teams prepare these addenda with consistency. Its document assembly, automated line-item quoting, AI Writer for supporting narratives, and extensive template library streamline writing, ensure key topics are addressed, and help teams comply with internal procedures. Used well, these resources lead to clearer requests, quicker response cycles, and smoother execution across your portfolio.
Consider setting clear thresholds that determine when a change becomes a formal change order versus a minor adjustment. For example, if the extent of a request affects the contract sum, contract time, or project requirements, route it for approval in accordance with the original contract. A brief cover description, attached change details, drawings, and materials specs help the parties involved-the owner, contractor, architect, project managers, and the project team-evaluate schedule impacts, budget implications, and whether time extensions are warranted.
Number each addendum to track project changes and maintain a clear audit trail. These governance steps are critical in construction projects that rely on AIA document conventions or construction change directives, but the same practices fit software and services work.
Strong communication plans should define who leads the assessment, who is responsible for implementation, and what must happen before work is implemented. Set response targets so order requests do not stall progress or cause project delays. Use simple scoring to prioritize by value, risk, and resources, and require proof that the change will comply with law and internal procedures before it is approved.
When new information triggers an event, document the rationale and potential effects, then decide whether to proceed, defer, or reject. If approved, update baselines for scope, schedule, and budget, note any time extensions, and record the change against the contract sum. This cadence helps management verify compliance, avoid disputes, and keep the project's timeline under control while allowing necessary adjustments to be managed.
Writing the Contract Change Form (During Development) document - The Narrative
Company Name
Contract Addendum
Company Name
City, State Postal Code
Phone Phone Number - Fax Fax Number DATE: Current Date
Order # Contract Reference Number
Bill To:
Company Name
Address Address
City, State Zip or Postal Code
Phone Phone Number - Fax Fax Number For:
Invoice: Product and/or Service
Addendum: Contract #Contract Reference Number - Additional Services. The following is a request to amend the previous established and contracted relationship between Company Name and Company Name and is to act as an addendum to any existing contract or relationship established between the two parties. Authorized changes may also impact delivery dates and milestones.
The undersigned party desires Company Name to provide the following additional goods and services: Total: Delivery Date/Milestone Impact:
Entire Agreement
This Agreement contains the entire Agreement between the parties relating to the subject matter hereof and supersedes any and all prior agreements or understandings, written or oral, between the parties related to the subject matter hereof. No modification of this Agreement shall be valid unless made in writing and signed by both of the parties hereto.
Binding Effect
This Agreement shall be binding upon and inure to the benefit of Customer and Developers and their respective successors and assigns, provided that Developers may not assign any of his obligations under this Agreement without Customer's prior written consent. PAYMENT TERMS: Net 30 days. 1.5% Interest monthly on accounts past due 30 days.
ACCEPTANCE OF AGREEMENT:
The above prices, specifications and conditions are hereby accepted. The designer is authorized to execute the project or provide software as outlined in this Agreement. Payment will be made as proposed above.
Customer's signature Title Date
Developer's signature Title Date

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Frequently Asked Questions
How do I customize this contract to fit my business needs?
Customizing this contract involves editing the document to include your business details, terms, and conditions. The templates are designed to be flexible, allowing you to insert your company's name, address, and other relevant information. You can modify clauses to reflect your unique business practices and legal requirements.
Is this contract compliant with laws and regulations?
The legal contract templates are written by legal professionals and designed to comply with current laws and regulations at the time of their writing. However, laws can vary by jurisdiction and change over time, so it's recommended to have your contract reviewed by a local attorney to ensure it meets all legal requirements specific to your region and industry. Templates are licensed as self-help information and not as legal advice.
Can I use the same contract for different clients or projects?
You can use the same contract for different clients or projects. The templates are versatile and easily adapted for various scenarios. You will need to update specific details such as client names, project descriptions, and any unique terms for each new agreement to ensure that each contract accurately reflects the particulars of the individual client or project.
What should I do if I encounter a clause or term I don't understand?
If you encounter a clause or term in the contract that you need help understanding, you can refer to guidance notes explaining each section's purpose and use. For more complex or unclear terms, it's advisable to consult with a legal professional who can explain the clause and help you determine if any modifications are necessary to suit your specific needs.
How do I ensure that the contract is legally binding and enforceable?
To ensure that the contract is legally binding and enforceable, follow these steps:
- Complete all relevant sections: Make sure all blanks are filled in with accurate information.
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- Signatures: Both parties must sign the contract, and it is often recommended that the contract be witnessed or notarized, depending on the legal requirements in your jurisdiction.
- Consult a legal professional: Before finalizing the contract, have it reviewed by an attorney to ensure it complies with applicable laws and protects your interests.

By Ian Lauder

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