Complete Final Inspection
The final inspection is your last hurdle before the addition is officially complete. The building inspector will verify that all work meets code and issue your Certificate of Occupancy—the document that makes your addition legal.
Quick Summary
Time needed
1-2 hours
Cost
Included in permit fee
Who schedules
Contractor or you
Why This Step Matters
Without a passed final inspection and Certificate of Occupancy (CO), your addition is technically not legal to use. This matters for insurance coverage, home sales, and safety. Most importantly, the final inspection confirms that your addition is safe for your family.
Legal Requirement
Do not make final payment to your contractor until the final inspection passes and you receive your Certificate of Occupancy. An unpermitted addition can result in fines, forced removal, or insurance claim denials.
What the Inspector Checks
Electrical System
The inspector verifies that all electrical work is complete and safe.
- All outlets and switches work properly
- GFCI outlets in wet areas (kitchen, bath, exterior)
- AFCI breakers for bedroom circuits
- Panel properly labeled with all circuits
- Cover plates on all boxes, no exposed wiring
Plumbing System
All plumbing must be complete and functional with no leaks.
- All fixtures operational (sinks, toilets, showers)
- Hot water reaches all fixtures
- No visible leaks at connections
- Proper drainage and venting
HVAC System
Heating and cooling systems must be properly installed and operational.
- Adequate heating/cooling for new space
- Ductwork properly connected and sealed
- Combustion appliances properly vented
- Thermostat accessible and functional
Life Safety Systems
Fire and carbon monoxide protection is critically important.
- Smoke detectors in all bedrooms and hallways
- CO detectors near sleeping areas (if gas/fuel appliances)
- Interconnected alarms (when one sounds, all sound)
- All detectors tested and operational
Egress Requirements
Every bedroom must have a means of escape in case of fire.
- Bedroom windows meet egress size (5.7 sq ft minimum opening)
- Window sill no higher than 44 inches from floor
- Windows operable from inside without tools
- Egress wells (if below grade) meet size requirements
General Building
The structure and finishes must be complete and meet code.
- Stair railings proper height (34-38 inches)
- Deck/porch railings complete with proper balusters
- Address numbers visible from street
- Work matches approved plans
How to Prepare for Final Inspection
Before Scheduling
- • Verify all trade inspections passed
- • Install all fixtures and appliances
- • Complete all finish work (paint, trim, flooring)
- • Install smoke and CO detectors
- • Address any items from previous inspections
Day of Inspection
- • All utilities on and accessible
- • Clear path to electrical panel, water heater, HVAC
- • Approved plans on site
- • Contractor or homeowner available to meet inspector
- • All areas accessible (no locked rooms)
About the Certificate of Occupancy
Upon passing the final inspection, the building department issues a Certificate of Occupancy (CO). This document is your proof that the addition was built legally and meets all building codes.
Keep Your CO Safe
Store your Certificate of Occupancy with your important home documents. You'll need it when selling your home, for insurance claims, and for any future permits.
CO Includes
- • Property address
- • Permit number
- • Description of work completed
- • Occupancy classification
- • Date issued and inspector signature
Why It Matters
- • Required for home sales
- • Needed for insurance coverage
- • Proves legal construction
- • May affect property taxes
- • Required for future permits
What If You Don't Pass?
Failed inspections are common and not catastrophic. The inspector will provide a written list of issues that need to be corrected.
Minor Corrections
Missing cover plates, detector not installed, minor finish issues—these can often be corrected the same day and reinspection scheduled for the next available slot (often within a week).
Major Corrections
Code violations in framing, electrical, or plumbing may require opening walls, additional permits, or trade contractor involvement. Your contractor should address these at no additional cost if they were responsible.
Reinspection
Most jurisdictions allow 1-2 free reinspections. Additional reinspections may incur fees ($50-$150 each). Make sure all items are corrected before requesting reinspection.
Frequently Asked Questions
Can I use the addition before the final inspection?
Technically, no. Using a space without a CO is a code violation and could affect insurance coverage. However, many homeowners do move furniture in while awaiting inspection. Just understand the risks—if something goes wrong (fire, injury), your insurance may not cover it.
Do I need to be present for the final inspection?
Someone over 18 must be present to provide access and answer questions. This can be you, your contractor, or another authorized adult. Your contractor should typically handle inspection scheduling and attendance.
What if the inspector finds something not on the plans?
Minor field changes are usually acceptable if they meet code. Significant deviations from approved plans may require a plan revision and additional review. Discuss any changes with your contractor before the inspection.
How long until I receive the Certificate of Occupancy?
If you pass, the inspector often issues the CO on the spot or within 1-2 business days. Some jurisdictions mail it; others require pickup. Ask your inspector about the local process.
Ready for the Next Step?
Congratulations on passing your final inspection! The last step is completing your contractor's punch list—addressing any remaining finish issues before making final payment.