Commercial Tenant Improvement Permit in Longmont, Colorado
Required for interior remodels, additions, and tenant improvements in commercial buildings in Longmont. Reviewed against the 2021 IBC with Longmont amendments and climatic/geographic design criteria; uses the same valuation-based Primary Fee Schedule with a higher commercial plan review rate.
Verified 2026-06-30 · Source
When you need this permit
- Building permit required for commercial remodel/tenant improvement work
- Applications submitted via the ACA portal under 'Commercial/Industrial Remodel/Addition'
- A combined Commercial Remodel/Tenant Improvement Construction Permit Application & Submittal Checklist is published by Building Services (revised January 2026) and must be followed for submittal completeness
- Commercial plan review fee rate (65% of building permit fee) applies, higher than the 50% residential rate
Required documents
- Req
Commercial/Industrial Remodel/Addition Application (via ACA portal)
Online application through Accela Citizen Access
- Req
Combined Commercial Remodel/Tenant Improvement Construction Permit Application & Submittal Checklist (Revised 1/13/2026)
City of Longmont's current commercial TI submittal checklist
- Req
Full Construction Drawing Set
Architectural, structural, mechanical, plumbing, electrical plans as applicable to the scope
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (Primary Fee Schedule) | Per the Primary Fee Schedule — $27.00 minimum, scaling to $6,448.55 + $4.20/$1,000 over $1,000,000 | City of Longmont FY2026 Fee Manual — same table used for residential and commercial |
| Plan Review Fee — commercial | 65% of the Building Permit Fee | FY2026 Fee Manual, Plan Review Fees table |
| Additional Plan Review (changes/revisions to plans) | $47.00 minimum charge (one hour); $47.00/hour for incomplete/changed submittals | FY2026 Fee Manual |
Review timeline
~0–0 business days
Typical estimate — confirm current times with the Longmont building department
Inspection process
- 1
Framing / Structural
After framing complete, before walls covered
- 2
MEP Rough-In
Mechanical, electrical, plumbing rough-in before walls closed
- 3
Final
All work complete, ready for Certificate of Occupancy
Tips
- Commercial plan review in Longmont is charged at 65% of the building permit fee, notably higher than the 50% residential rate — factor this into TI project budgets.
- Use the January 2026-revised Combined Commercial Remodel/Tenant Improvement checklist to avoid incomplete-submittal plan review surcharges ($47/hour).
Frequently asked questions
- What's the commercial plan review fee rate in Longmont?
- Commercial plan review is charged at 65% of the building permit fee, compared to 50% for residential plan review, per the City of Longmont FY2026 Fee Manual.
Sources & verification
Verified against official sources. Last reviewed 2026-06-30.
- City of Longmont — Building Services (Building Inspection Division), Development Services Center — official building department
- Combined Commercial Remodel/Tenant Improvement Construction Permit Application & Submittal Checklist (Revised 1/13/2026, PDF)
- City of Longmont FY2026 Planning & Development Services Fee Manual (PDF)
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Longmont building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
Other permits in Longmont
Related guides
Get the AI compliance checklist
Upload your project scope, get a jurisdiction-specific checklist of everything you need. Coming soon.
We only use your email to send permit updates. No spam, unsubscribe anytime. Privacy.