What are the inspection requirements during ADU construction in San Diego?

Hello,

Congratulations on embarking on your ADU project in San Diego! Navigating the inspection process can indeed be overwhelming, but with some preparation and understanding of the key stages, you can minimize surprises and ensure a smoother experience. Let’s dive into what you need to know.

### Inspection Stages for ADU Construction

In San Diego, the ADU construction inspection process typically involves several key stages. Each stage ensures compliance with local building codes and standards:

1. **Foundation Inspection**: Before pouring concrete, inspectors will check the excavation, forms, and reinforcing steel. Ensure all plans are accessible, and the site is clean and safe for inspectors to move around.

2. **Rough Framing Inspection**: After the frame is up but before insulation or drywall, inspectors will check the structural integrity, including wall, floor, and roof framing.

3. **Rough Electrical, Plumbing, and Mechanical Inspections**: These are often conducted before the framing inspection. Inspectors will look at wiring, plumbing, and mechanical systems to ensure they meet local codes.

4. **Insulation Inspection**: Once insulation is installed but before drywall, an inspection is necessary to ensure proper installation and compliance with energy efficiency standards.

5. **Drywall Inspection**: Also known as “Gypsum Board Inspection,” this occurs after installation but before finishing work like painting or wallpapering.

6. **Final Inspection**: This is the last step, ensuring all work complies with codes and plans. It includes checking safety features, final plumbing, electrical, and mechanical systems.

### Utilities Inspections Explained

- **Electrical**: Inspectors will check if your wiring meets safety standards and energy codes. San Diego has specific requirements for wiring methods and circuit installations, so ensure your electrician is familiar with these.

- **Plumbing**: Water supply, drainage, and vent systems are inspected. Pay attention to water heater installation and backflow prevention, common areas where issues arise.

- **Structural**: Throughout the build, inspectors ensure the structure can withstand local environmental forces, such as seismic activity.

### Avoiding Common Pitfalls

1. **Scheduling**: Inspections must be scheduled in advance, usually requiring a 24-48 hour notice. Delays often occur due to missed appointments, so confirm schedules with your contractors.

2. **Documentation**: Keep all permits, plans, and inspection records organized and on-site. Missing documents can lead to inspection rescheduling.

3. **Compliance with Local Ordinances**: Familiarize yourself with the San Diego ADU regulations, such as those regarding height limits, setbacks, and parking requirements. The City’s Development Services Department is a good resource.

4. **Contractor Coordination**: Ensure your contractor is experienced with ADU construction and local inspections. Their familiarity can prevent overlooked details that lead to failed inspections.

### Regulations and Resources

- **California State Laws**: Familiarize yourself with SB-9 and AB-68, which facilitate ADU construction by easing zoning restrictions and streamlining the approval process.

- **Local Ordinances**: San Diego has adopted ordinances to encourage ADU development, such as waiving certain fees and relaxing development standards. Check the San Diego ADU Handbook for specifics.

- **Resources**: The San Diego Development Services Department website offers a wealth of information. You can also contact their Customer Service Center for specific queries. Consider hiring a local consultant or architect familiar with the ADU laws to guide you through the process.

### Cost and Timeline

- **Costs**: Inspection fees in San Diego can vary, but generally, you should budget around $1,000 to $2,000 for all necessary inspections. Ensure this is part of your overall budget of $150k.

- **Timeline**: Typically, ADU construction can take 6-12 months from inception to completion, including inspections. Ensure your contractor provides a detailed timeline and adjusts for inspection scheduling.

### Final Tips

- **Engage Early**: Early engagement with the city’s building department can clarify requirements and prevent delays.

- **Stay Proactive**: Keep communication open with your contractor and inspectors. Address small issues before they become large problems.

- **Community Feedback**: Consider reaching out to neighbors who have completed ADUs. They can share insights and potential challenges specific to your area.

Building an ADU is a significant investment, but with careful planning and an understanding of the inspection process, you can navigate it successfully. Best of luck with your project, and feel free to reach out with more questions as you progress!

Warm regards,

[Your Name]
ADU Consultant and Expert in San Diego