Commercial Required Inspections

The following inspections are typically required for new commercial construction. Not all inspections are required for remodels, additions, interior up-fits and other projects. If you have questions as to which inspections are required for your project, consult with the Spartanburg County Building Codes Staff.

1. Footings and Slabs (Includes Footings for Post)
Footing inspections are made after excavation, any forms are erected, and placement of reinforcing steel (If required) is in place, and grade pins are installed. Slab inspections are to be made after all under slab (Plumbing, Electrical, Gas) inspections have passed, all stone or sand is in place, reinforcing steel (if required) and vapor barrier in place. Footing and slab inspections are made prior to placement of concrete.   

2. Foundation Walls and/or Grade Beam Steel Reinforcement   
Masonry and concrete foundation wall inspections are made after all masonry units and steel reinforcement (If Required) are in place. Grade beam/poured wall inspections are made after all forms are erected and reinforcing steel is in place and prior to the placement of concrete.

3. Under Slab Plumbing/Electrical/Gas - Plumbing 
Under slab plumbing and pressure test inspection is to be made prior to back-filling and pouring of the concrete slab. Drain-waste vents require a 10 ft. water stack test or 5 psi air test.

Underground electrical inspections are to be made prior to the placement of concrete or back-filling with dirt. See table 300.5 of the 2014 NEC for burial depth.

Underground gas piping and pressure test are made prior to back filling or placement of concrete. Gas piping requires a minimum 10-psi air test for 15 minutes. Minimum coverage of earth for trenches is 12 inches. Nonmetallic gas piping requires an 18-gauge tracer wire installed adjacent to the pipe that extends above grade at each end. All underground gas piping must be inspected and tested.

4. Fire Main
The fire main inspection is to be made (Thrust Blocks, Pressure Test, Fittings) prior to the placement of backfill or concrete. (See Required Fire Inspections)

5. Rough-In Inspections (Framing, Electrical, Mechanical, Plumbing, Sprinkler/Fire)

Note: All previously required inspections must be signed off prior to scheduling rough-in inspections.

A. Rough Framing
The rough framing inspection is to be made after the roof, all framing, fire blocking, continuous load path columns, blocking, and wind bracing is in place. Engineered design and layout for manufacturer’s structural components such as trusses or beams must be on site at the time of the inspection. If engineered trusses are used, provide the original truss engineered signed and sealed sheets (these are typically delivered with the trusses).

B. Exterior Wrap Inspection (May not be Required for all Commercial Construction)
The exterior wrap inspection is to made after water resistant barrier has been installed and before exterior veneer is installed.

C. Rough Electrical (In Wall and Above Ceiling)
The rough electrical inspection is to be made prior to covering or concealing walls, ceilings, and floors. This inspection includes placement of all wiring, outlet boxes, and feeders entering into panel(s). All grounding conductors shall be made up in boxes.

D. Rough Plumbing (In wall and Above Ceiling)
The rough plumbing inspection is to be made prior to covering or concealing walls, ceilings, and floors. This inspection includes drain-waste and vent lines, vent(s), and water supply lines. DWV plumbing requires a 5 psi air test or 10 ft water stack test. Water supply piping requires a minimum 50 psi air test or must be under normal operating conditions.

E. Rough Mechanical (In Wall and Above Ceiling)
The rough mechanical inspection is to be made prior to covering or concealing walls, ceilings, and floors. This inspection includes the placement and installation of supply boots and return air, bath exhaust fans, dryer vents, gas fire place inserts, gas fired appliance vents, supply and return ductwork (attics), HVAC line sets and condensate drains, and installation of all gas piping.

F. Rough Sprinkler/Alarm (In Wall and Above Ceiling)
The rough alarm inspection is to be made prior to covering or concealing walls, ceilings, and floors. This is a visual inspection of alarm device locations and wiring.The rough sprinkler inspection is to be made prior to covering or concealing walls, ceilings, and floors. This is a visual inspection of sprinkler piping and devices. A pressure test is also required prior to concealing walls, ceilings, and floor. (See Required Fire Inspections)

G. Commercial Kitchen Hood Duct
An inspection and light test of the grease duct is required prior to the concealment of any portion of the grease duct system. (See Required Fire Inspections)

H. Insulation Inspection
This inspection is to be made after all rough-in inspections have passed. The insulation inspection is to be made when insulation has been installed but prior to covering or concealing walls, ceilings, floors.

6. Permanent Power Release 
The permanent power release inspection is to be made after all rough-in inspections and the insulation inspection has passed. The meter base and main panel must be installed with at least one branch circuit made up. Two ground rods are required spaced at least 6ft apart.

7. Gas Release
The gas meter release inspection is to be made after sheetrock or wall coverings are in place. A minimum 10 psi air test on gas lines. All gas appliance vents must be in place. At least one gas-burning appliance must be completely hooked up and vented. All other gas outlets must have shut off valves and capped or plugged.   Gas line must be bonded to electrical panel.

8. Final Inspection
The final building inspection occurs when the project is fully complete, and all previously required inspections have been signed off.

A. Electrical 
The final electrical inspection requires all fixtures and service panel to be complete. All cover plates installed, all devices and lighting functional, circuit breakers in panel labeled, and all circuits energized. Emergency and exit lighting will be tested at this time.

B. Plumbing 
The final plumbing inspection requires that all fixtures be set and operational including water heater and any required backflow devices be installed.

C. Mechanical 
The final mechanical requires that all heating and cooling equipment and required ventilation be in place and operational. Registers and grilles must be in place at this time. Duct detectors (If Required) will be tested at this time.

D. Sprinkler/Alarm Final
A performance test of all sprinkler and alarm systems is required. (See Required Fire Inspections)

E. Commercial Kitchen Hood 
The commercial hood final requires a performance test to verify the rate of exhaust airflow, make-up airflow and proper operation of the hood system. A capture and containment test is also required. A performance test of the hood fire suppression system will also be performed at this inspection. (See Required Fire Inspections)0

F. Exterior and Finished Grade
All exterior roof and wall covering/veneers (Vinyl, masonry, fiber cement siding, etc...), are required to be in place. The finished grade is required to be complete and allow for positive drainage away from structure. 4 inch street address numbers shall be posted on structure and at street if more than 50 ft from roadway.

G. Building Final
The final building inspection requires all rooms and areas to be complete in every safety aspect, including handrails, guardrails, landings, fire separation walls, tempered glass (where required), and door and egress requirements. Any required signage must be in place.

*Please note that for new construction and where land disturbance has occurred, approvals from the Spartanburg County Planning Department and the Spartanburg County Engineering Department must be obtained prior to the building final.

Certificate of Occupancy
Certificates of occupancy are issued only for new commercial building and up fits. A certificate of occupancy is not issued for shell buildings. Certificates of occupancy may be obtained the next business day after the final inspection has been approved.

Commercial Required Inspections (printable version)