What's the ideal size for an ADU in Pasadena?

Hello,

The decision to build an Accessory Dwelling Unit (ADU) in Pasadena is a smart move considering the city’s commitment to increasing housing options and the potential for additional rental income. Let’s dive into the specifics to help you make an informed decision about the ideal size and other factors involved in your ADU project.

### Ideal Size Considerations

1. **Regulatory Constraints**: As you mentioned, Pasadena allows ADUs up to 850 square feet for a one-bedroom unit and up to 1,000 square feet for a two-bedroom unit. Given your lot size of 8,500 square feet, you have ample space for an ADU within these limits. However, opting for a smaller size, such as 600-700 square feet, can offer several benefits.

2. **Strategic Advantages of Smaller ADUs**:
- **Cost Efficiency**: A smaller ADU, say 600-700 square feet, will generally cost less in terms of construction and materials, potentially keeping you well within your $150,000 budget. Expect costs to range from $200 to $300 per square foot in Pasadena, depending on the finishes and complexity. Smaller units can help you save on both initial outlay and long-term maintenance.
- **Maintenance and Upkeep**: Smaller units translate to lower utility bills and maintenance costs. This is an important consideration for long-term property management.
- **Rental Income vs. Vacancy Rates**: While a larger ADU might fetch higher rent, smaller units often appeal to a wider range of tenants, such as singles or couples seeking affordable housing, potentially reducing vacancy rates.

### Impact on Property Taxes and Home Value

- **Property Taxes**: Adding an ADU will likely increase your property tax, as it is considered an improvement to your property. However, in California, property taxes are assessed based on the added value of the ADU rather than the entire property. This means the tax increase should be proportional to the cost of the ADU.

- **Home Value**: Generally, an ADU can significantly boost your property’s overall value. A well-designed ADU in Pasadena can increase property value by approximately 20-30%, depending on market conditions and unit quality.

### Compliance with City Regulations

1. **Setbacks and Placement**: Pasadena requires a minimum of 4-foot side and rear yard setbacks for ADUs. Ensure your design adheres to these requirements to avoid costly redesigns or delays.

2. **Parking Requirements**: Typically, Pasadena requires one additional parking space for an ADU unless you are within a half-mile of public transit, which exempts you from this requirement. Review the specific location of your property to confirm if this exemption applies.

3. **SB-9 and AB-68 Considerations**: These California laws facilitate the development of ADUs by streamlining the approval process and reducing restrictions. AB-68, for instance, prohibits local agencies from imposing overly burdensome restrictions, which can help in expediting your project through the permitting process.

### Practical Steps and Timeline

1. **Research and Planning**: Start by consulting with an architect or ADU specialist who has experience with Pasadena’s zoning laws. This can take about 1-2 months.

2. **Design and Permitting**: Once you have a clear design, apply for permits. Pasadena’s permit approval process can take anywhere from 2 to 6 months, depending on the complexity of your project and the current workload of the planning department.

3. **Construction**: Actual construction can take 4-8 months. Hiring a contractor familiar with local codes and efficient project management can help keep this timeline on track.

4. **Final Inspection and Occupancy**: After construction, a city inspector will need to approve the final product before occupancy. This can take a few weeks.

### Tips and Warnings

- **Choose Local Expertise**: Work with contractors and designers familiar with Pasadena’s ADU regulations to avoid common pitfalls.
- **Budget Buffer**: Keep a contingency fund of about 10-15% of your total budget for unexpected costs.

### Next Steps

- **Consultation**: Schedule a consultation with a local ADU expert or architect.
- **Visit Completed ADUs**: If possible, visit other ADUs in Pasadena to get a sense of size and design that fits your needs.
- **Community Resources**: Utilize Pasadena's planning department and their resources for homeowners considering ADUs.

In conclusion, while the maximum size for an ADU in Pasadena is quite generous, opting for a smaller unit could be strategically beneficial for your budget and rental prospects. By carefully considering local regulations and market demands, you can create an ADU that enhances your property’s value and meets your financial goals.

Best of luck with your project! If you have further questions, feel free to reach out.

Warm regards,

[Your Name]
Experienced ADU Consultant