Commercial Tenant Improvement Delivery: From Test Fit to Turnover

A commercial tenant improvement moves through several handoffs: a test fit, a lease decision, design development, permit documents, pricing, construction, inspections, and turnover. Problems arise when each handoff resets the project instead of carrying forward the same assumptions. A connected delivery process keeps the scope, budget, schedule, and operational requirements visible from the first layout through the final punch list.

Use the test fit to expose constraints

A test fit should answer more than whether desks or workstations fit. It should identify occupancy, egress, accessible routes, restroom needs, electrical and HVAC implications, structural constraints, fire protection, technology, storage, and the relationship to the base building. Label assumptions clearly so the owner knows which decisions still need field verification or landlord approval.

Verify the existing shell before design hardens

Confirm ceiling heights, structural framing, roof or exterior conditions, electrical service, HVAC capacity, plumbing locations, fire alarm and sprinkler infrastructure, utility entries, and the condition of finishes that will remain. Existing drawings may not show undocumented work. Early verification costs less than redesign after permit review or demolition.

Price the scope owners will actually build

Early estimates should identify inclusions, exclusions, allowances, alternates, owner-furnished equipment, escalation assumptions, and contingency. Separate base-building work from tenant work and identify landlord standards. If the design is still developing, the estimate should show how each open decision changes cost rather than presenting false precision.

Plan the permit and construction sequence together

The permit schedule, procurement schedule, and field schedule are connected. Long-lead electrical equipment, specialty millwork, storefront systems, controls, and owner-furnished items can become critical-path items. In an occupied building, add shutdown planning, temporary barriers, dust and noise control, after-hours work, and communication with neighboring tenants before mobilization.

Define turnover before construction starts

Turnover should include more than a clean space and a certificate of occupancy. Define commissioning, training, warranties, attic stock, as-built documents, equipment schedules, closeout photographs, keys, controls settings, and the owner's acceptance process. PCM, Apex Grid's construction delivery branch, uses those requirements to align pre-construction planning with the field team's final handoff.