Can I have multiple ADUs on one lot in San Diego?

Hello there,

I'm glad to see you're considering expanding your property with ADUs in San Diego, as the city indeed supports such developments with progressive regulations. I'll do my best to clarify your questions and provide actionable insights to help you navigate this process efficiently.

### 1. Possibility of Multiple ADUs on One Lot

San Diego has embraced the flexibility provided by state laws like SB-9 and AB-68, allowing for multiple ADUs on a single lot. Generally, you can have up to two ADUs on a single-family lot: one detached and one attached Junior ADU (JADU). However, since your lot is substantial at 10,000 square feet, you might have additional options depending on zoning classifications and any local overlays.

**Key Points:**
- **Detached ADUs**: You can build a detached ADU up to 1,200 square feet.
- **Junior ADUs**: These must be created within the existing or proposed space of the primary residence and are limited to 500 square feet.
- **Setbacks**: Typically, the required setbacks are 4 feet from the side and rear property lines.

### 2. Budget Considerations

With a $300,000 budget, you should focus on efficient design and material choices to maximize your investment. In San Diego, construction costs for ADUs typically range from $250 to $500 per square foot, depending on finishes and complexity. Here's how you might allocate your budget:

- **Design & Permits**: $15,000 - $25,000
- **Construction**: $200,000 - $250,000 for a mid-range finish
- **Utilities & Site Work**: $25,000 - $35,000
- **Contingency**: Set aside about 10% of your budget for unexpected costs

### 3. Impact on Property Taxes and Rental Income

Building ADUs will likely increase your property's assessed value, impacting property taxes. However, California's Proposition 13 limits how much property taxes can increase annually. In terms of rental income, San Diego's rental market is strong. You could potentially earn $1,500 to $3,000 per month per ADU, depending on size and location.

### 4. Recent Legislative Changes

Stay updated on local ordinances as they can change. For instance, San Diego recently streamlined the permitting process under the "Complete Communities Housing Solutions" initiative, which might offer incentives or expedited processing for projects like yours. Keep an eye on these developments through the City of San Diego's Planning Department website.

### 5. Practical Steps to Take

1. **Verify Zoning and Local Ordinances**: Contact the San Diego Development Services Department to confirm your zoning and any specific neighborhood overlays that might impact your project.

2. **Hire a Qualified ADU Designer/Builder**: Look for professionals with experience in San Diego's ADU market to ensure compliance with all the nuances of local regulations.

3. **Pre-Construction Consultation**: Consider having a pre-construction meeting with a consultant or project manager to review your plans, timeline, and budget comprehensively.

4. **Submit Plans for Approval**: Once your designs are finalized, submit them for review. San Diego offers online permitting services, which can expedite the process.

5. **Construction Phase**: After obtaining your permits, work closely with your contractor to adhere to the timeline and budget. Expect construction to take anywhere from 6 to 12 months.

### 6. Common Mistakes to Avoid

- **Underestimating Costs**: Always account for a contingency to cover unforeseen expenses.
- **Ignoring Utility Connections**: Ensure early on that your lot can support additional utility connections without significant upgrades.
- **Skipping Professional Help**: The complexity of regulations and construction can lead to costly errors without professional guidance.

### 7. Resources and Next Steps

- **City of San Diego Development Services**: Start here for zoning and permit information.
- **California Department of Housing and Community Development**: Offers details on state laws affecting ADUs.
- **Local ADU Workshops**: Consider attending workshops or webinars offered by the city or local planners to stay informed about any changes.

By carefully considering these guidelines and leveraging local resources, you can make a sound investment in your property while complying with San Diego's regulations. Don't hesitate to reach out to professionals who can provide personalized assistance tailored to your specific situation.

Best of luck with your project, and feel free to reach out if you have more questions!

Warm regards,

[Your Name]
ADU Consultant