Tenant improvement projects: coordinating fire protection with your GC

Why TI projects almost always touch the sprinkler system

Any time walls move, ceilings change, or occupancy loads shift, the existing sprinkler layout may no longer meet code. NFPA 13 requires sprinkler coverage to be designed for the hazard classification of the space — what worked for an open office won't necessarily work for a restaurant kitchen, server room, or warehouse racking configuration.

Even cosmetic remodels can create compliance issues. Drop ceilings installed below existing sprinkler heads, new partition walls that create concealed spaces, or high-pile storage added after the fact — all of these can trigger the need for system modifications and a new permit.

Who's responsible for what

On a tenant improvement project, fire protection responsibility typically falls to the general contractor — but the GC usually subcontracts it to a licensed fire protection contractor. That's where coordination matters.

Here's how the typical responsibility breakdown works:

• General contractor: Coordinates the overall construction schedule, pulls the building permit, and is responsible for ensuring all subcontractors — including fire protection — are licensed and on schedule.
• Fire protection contractor: Designs the sprinkler modification, pulls the fire protection permit, performs the work, and coordinates the final inspection with the AHJ.
• Property owner/manager: Needs to ensure the building's existing system documentation is available and that the modification doesn't create conflicts with the base building's system design.
• Tenant: Often drives the schedule and needs to understand that fire protection inspections and sign-offs are a hard dependency before certificate of occupancy.

The most common coordination failures we see

Fire protection brought in too late

This is the most frequent issue. The GC schedules fire protection work after framing, MEP rough-in, and ceiling grid are already complete. At that point, changes to head locations require ripping out finished work. Getting fire protection on the drawings early — before construction begins — prevents this.

Permit pulled without existing system documentation

Modifying a sprinkler system requires knowing what you're modifying. If the building's as-built drawings don't reflect the current system, the design engineer has to field-verify before they can produce permitted drawings. That takes time that isn't always built into the schedule.

AHJ requirements not confirmed upfront

Jurisdictions across Washington, Oregon, and Idaho have different requirements for TI permits, inspections, and sign-offs. What the AHJ in Kennewick requires may differ from Richland or Pasco. Confirming requirements at the start of design — not at permit submittal — avoids late-stage redesigns.

Inspection scheduling left to the end

AHJ inspection slots aren't always available on demand. In some jurisdictions, scheduling even a routine final inspection requires several days' notice. If the project is on a tight turnover timeline, build inspection scheduling into the construction schedule early.

What to give your fire protection contractor at the start of the project

To keep TI fire protection work moving efficiently, pull together the following before your first meeting with your fire protection sub:

• Existing as-built or record drawings for the sprinkler system
• Architectural plans showing the proposed TI layout
• Reflected ceiling plan (or framing plan if no ceiling change)
• Occupancy classification for the new use
• Any equipment that affects clearance or hazard classification (cooking equipment, storage racks, server equipment, etc.)

How Tristate coordinates with GCs on TI projects

We work with general contractors throughout the Tri-Cities region on tenant improvement projects of all sizes — from single-suite office remodels to full floor restaurant build-outs. Our process includes early design coordination, permit submittal, installation, and AHJ inspection scheduling so the GC has one less variable to manage.

If you're starting a TI project and need fire protection coverage, contact us early. The earlier we're in the drawings, the smoother the project runs.

Reach us at (509) 380-8823 or info@tristatefp.com.