π‘ Permits, Inspections, and Final Sign-Offs: A Step-by-Step Guide
π§Ύ Introduction
Every successful construction project in Los Angeles β whether itβs a remodel, addition, or ADU β follows a strict path of permits, inspections, and final approvals.
While it can feel like red tape, these steps protect homeowners by ensuring work meets city safety, seismic, and energy standards.
At Nail & Hammer Construction Corp, we handle this process from start to finish β so our clients can focus on design and results, not bureaucracy. Hereβs a breakdown of what happens at each stage and how we manage it efficiently.
ποΈ Step 1: The Permit Process
Before construction begins, a permit must be issued by the Los Angeles Department of Building and Safety (LADBS).
π Permit Application Includes:
Architectural drawings and site plans
Structural, electrical, plumbing, and mechanical details
Title 24 energy compliance documentation
Soils or engineering reports (if required)
Once submitted, LADBS conducts a plan check, reviewing your documents for zoning, safety, and code compliance.
How We Manage It:
Nail & Hammer coordinates directly with LADBS plan checkers β tracking submissions, handling corrections, and ensuring approvals are issued quickly. We also handle online ePlan submissions for efficiency.
π Typical Timeline:
2β6 weeks, depending on project complexity.
π§± Step 2: Pre-Construction Setup
Once permits are approved and issued, we begin project setup:
Posting the Building Permit card and Job Site Notice on-site
Scheduling the first inspection (pre-construction)
Preparing materials, equipment, and temporary utilities
This ensures the inspector knows the site is compliant and ready before any work begins.
π§° Step 3: The Inspection Stages
Every major phase of construction requires a city inspection before moving forward. Missing one can delay progress or cause rework.
Hereβs the typical inspection sequence we follow for residential projects in Los Angeles:
1οΈβ£ Foundation Inspection
Inspectors check excavation, rebar, anchor bolts, and forms before concrete pour.
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We coordinate 24β48 hours in advance and ensure rebar is clean, properly spaced, and documented.
2οΈβ£ Underfloor or Slab Plumbing
Inspects drain lines, vents, and pressure tests before concrete placement.
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We ensure water tests and cleanouts are visible and capped.
3οΈβ£ Framing & Rough Systems
Occurs after framing, wiring, and plumbing are installed but before drywall.
The inspector checks:
Wall framing, headers, and straps
Rough electrical, plumbing, and HVAC ducting
Seismic hardware and hold-downs
β We walk the inspector through each system and have correction tools ready on-site.
4οΈβ£ Shear & Structural Inspection
Verifies that shear walls, nailing, and bracing match the engineerβs plan β critical for seismic compliance.
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We photograph all connections for documentation.
5οΈβ£ Insulation & Drywall
Before drywall is taped, insulation and vapor barriers are checked for R-value and coverage.
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We install per Title 24 and provide product specs for verification.
6οΈβ£ Final Inspection
Once the build is complete β from finishes to fixtures β LADBS ensures the project meets all codes and matches approved plans.
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We do a pre-final walkthrough with clients to address small details before scheduling final sign-off.
π§Ύ Step 4: The Final Sign-Off
After passing all inspections, LADBS issues a Certificate of Occupancy (CofO) or Final Sign-Off for the project.
This document confirms that the home, addition, or ADU is safe, compliant, and legally habitable.
What We Provide:
Inspection reports and photos
Compliance certificates (energy, plumbing, electrical)
Warranty documentation
Maintenance recommendations
π This is the moment your project officially transitions from construction site to completed property.
βοΈ How Nail & Hammer Keeps It Smooth
We manage every step so clients donβt have to worry about city paperwork or missed approvals.
Our Process Includes:
Coordinating directly with LADBS inspectors and plan checkers
Handling re-inspections and correction notices
Keeping daily communication logs and progress reports
Maintaining full compliance with Title 24, CALGreen, and seismic standards
By managing permits and inspections proactively, we prevent delays, reduce change orders, and protect your project timeline.
π‘ Pro Tips for Homeowners
Never start work without a permit β fines or forced tear-downs can cost more than the project itself.
Keep your permit card on-site β inspectors must sign off at each stage.
Document everything β take photos of completed work before covering walls or slabs.
Hire experienced contractors β local familiarity with LADBS requirements speeds up the process.
β Conclusion
Permits, inspections, and final sign-offs are the backbone of every safe and successful construction project in Los Angeles.
At Nail & Hammer Construction Corp, we handle the entire compliance process β from plan submittal to your final Certificate of Occupancy β so you can focus on the excitement of seeing your vision come to life.
π Call 424-800-3704 today to schedule a consultation and let our team manage your next build the right way β with precision, transparency, and full city compliance.

