What Is Tenant Improvement Engineering?
Tenant improvement (TI) engineering covers the MEP, structural, and sometimes civil work needed to convert a shell space into a functional business. Even cosmetic-seeming TI projects often trigger engineering requirements for HVAC, electrical, plumbing, and fire protection.
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When TI triggers engineering
Any TI that moves walls, changes occupancy type, adds plumbing fixtures, modifies HVAC, upgrades electrical service, or touches the fire sprinkler system needs engineering. A simple office repaint doesn't. Converting a retail space to a restaurant almost always does — the MEP demands are completely different.
What's typically included
MEP drawings for the new layout, structural review if you're adding heavy equipment or modifying the structure, Title 24 energy compliance in California, and coordination with the landlord's base building systems. Fire sprinkler modifications require a separate deferred submittal in most jurisdictions.
TI-specific challenges
You're working within someone else's building, so as-built conditions may not match the landlord's drawings. Field verification is critical. Landlord approval adds a review cycle. And the base building's capacity — electrical service, HVAC tonnage, plumbing — may limit what your TI can do without expensive upgrades.
The bottom line
TI engineering is required whenever you change layout, occupancy, or building systems. Budget for field verification — landlord drawings are often wrong.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.