Tenant improvement projects rarely go exactly as planned—scope creeps, unforeseen structural issues, and design adjustments happen on nearly every build-out job. Knowing how to manage changes without derailing your timeline or budget can save tens of thousands of dollars and months of frustration. This guide walks you through the practical steps to control modifications while keeping your project on track.
Establish a Change Order Process Before Work Starts
The best time to prevent chaos is before your contractor breaks ground. Your contract should include a formal change order procedure that all parties agree to upfront. This means defining who approves changes (you, the project manager, the contractor), what documentation is required, and how costs and timeline impacts are calculated.
Most professional TI contractors use a standard change order form that includes:
- A detailed description of the change
- Original scope vs. new scope comparison
- Cost impact with line-item breakdown
- Time impact in days
- Signatures from all responsible parties
Without this structure, you'll face constant verbal agreements that vanish into dispute territory later.
Distinguish Between True Changes and Scope Clarifications
Not every modification is a billable change order. A change order should only apply to work that genuinely exceeds the original scope. If your contractor didn't clearly define how electrical outlets would be positioned in your rendering, and you later specify their exact location, that's often a scope clarification, not a change—especially if it doesn't require material rework.
Have your contractor walk through the original plans with you before construction starts. Ask specific questions: Where exactly are outlets? What finishes are included? What's excluded? Getting these answers documented saves disputes when someone later says "I thought that was included."
Build Contingency Into Your Budget and Timeline
Typical TI projects include a 10–15% contingency fund specifically for unforeseen conditions and approved changes. For a $500,000 build-out, that's $50,000–$75,000 set aside. If you're doing a smaller tenant improvement—say $150,000—a 15% contingency ($22,500) is reasonable.
Beyond budget, add 5–10% padding to the timeline. If your contractor estimates 16 weeks, schedule for 17–18 weeks. This buffer absorbs the inevitable delays from waiting on approvals, permit revisions, or material delivery setbacks.
Track Changes in Real Time
Use a shared project log—whether a simple spreadsheet or construction management software like Procore or Touchplan—to document every change request, approval, and cost impact. This becomes your paper trail. At minimum, track:
- Date change was requested
- Who requested it
- Description and reason
- Estimated cost and timeline impact
- Approval status and who signed off
- Actual cost once completed
This transparency prevents disputes and helps you spot cost creep patterns early.
Review Submittals and RFIs (Requests for Information) Carefully
Submittals are your contractor's detailed plans for materials, finishes, and methods before work happens. RFIs are requests for clarification on the original plans. These documents are where most changes originate.
Review submittals and RFI responses within 48 hours when possible. Delays in approving these can cascade into schedule delays. If a submittal shows something you didn't expect—like a different tile pattern or fixture finish—flag it immediately rather than discovering the problem after installation.
Know When to Push Back
Not every change request is reasonable. If your contractor proposes a modification that primarily benefits them (easier installation method that gives you lower quality results) or that they should have anticipated, push back. Legitimate changes address:
- Code or permit requirement changes
- Genuine unforeseen conditions (hidden asbestos, structural surprises)
- Your actual preferences that exceed the original scope
- Building owner requirements you didn't control
Cosmetic preference changes you decide on mid-project are fair game for change orders. Site conditions that your contractor should have anticipated are not.
Streamline Approval Authority
Designate one person as the decision-maker for approvals. If three people need to sign off on every change, you'll wait weeks for decisions. That person should have clear authority to approve changes up to a certain dollar amount (typically $5,000–$10,000 for mid-size projects) without additional layers of approval.
When comparing and hiring TI contractors, look for firms with experience documenting and managing changes smoothly. Platforms like Mercoly let you compare trusted build-out providers and review their processes for handling modifications before you commit.
Frequently Asked Questions
Q: How much should I budget for changes in a tenant improvement project? A: Plan for 10–15% of your total project cost as contingency for unforeseen conditions and approved changes. For a $300,000 build-out, that's $30,000–$45,000 reserved.
Q: Can my contractor refuse to provide a written change order? A: No. A written change order documenting scope, cost, and timeline impact is standard practice and protects both parties. If a contractor resists documentation, that's a red flag about their professionalism.
Q: What's the difference between a change order and a construction change directive? A: A change order requires mutual agreement before work starts; a change directive is issued when you need work done immediately and agree to settle the cost later, typically used for urgent unforeseen conditions.
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