If you’re a homeowner in San Rafael, California, considering adding an Accessory Dwelling Unit (ADU) to your property, it’s essential to understand the local regulations to ensure a smooth and compliant building process. ADUs, often referred to as granny flats or in-law units, offer a practical solution to housing shortages and can provide additional income or space for family members.
Understanding ADUs in San Rafael
An ADU is a secondary housing unit on a single-family residential lot. These units can be detached, attached, or converted from existing spaces like garages or basements. San Rafael also permits Junior Accessory Dwelling Units (JADUs), which are smaller units within the primary residence, typically not exceeding 500 square feet.
Key Regulations for ADUs in San Rafael
- Size Limits:
- Detached ADUs: Can be up to 1,200 square feet.
- Attached ADUs: Cannot exceed 50% of the existing residence’s floor area, with a maximum of 1,000 square feet. However, an ADU of up to 800 square feet is always allowed, regardless of other standards.
- JADUs: Limited to 500 square feet.
- Setbacks:
- Side and Rear: A minimum setback of 4 feet is required.
- Front: Must comply with the primary structure’s setback requirements.
- Conversions: No additional setbacks are required when converting existing legal structures into an ADU.
- Height Restrictions:
- ADUs are generally limited to a height of 16 feet. However, depending on your residential zoning code, you may be able to build two stories.
- Parking Requirements:
- Generally, conversion ADUs and JADUs don’t require any parking. Attached and detached ADUs will require 1 parking space, unless your project qualifies for an exemption from the parking requirements.
- Owner Occupancy:
- There is no owner occupancy requirement for ADUs. However, JADUs require the property owner to reside on the property.
- Design Standards:
- ADUs must maintain the architectural style of the primary residence, ensuring consistency in design and materials.
Permitting Process for San Rafael ADUs
San Rafael offers a streamlined, ministerial approval process for ADUs up to 800 square feet, provided they meet specific criteria. This means that if your ADU project complies with the established standards, it can be approved without discretionary review, expediting the permitting process.
Benefits of Building an ADU in San Rafael
- Rental Income: Generate additional income by renting out the unit.
- Housing Flexibility: Provide living space for family members or guests.
- Property Value: Increase the overall value of your property with additional living space.
Next Steps: San Rafael ADU Laws
If you’re considering building an ADU in San Rafael:
- Consult the San Rafael Planning Division: They can provide detailed information and guidance specific to your property.
- Review Local Ordinances: Familiarize yourself with San Rafael’s municipal code regarding ADUs to ensure compliance.
- Engage Professionals: Consider hiring architects or contractors experienced in ADU construction to assist with design and permitting.
By understanding and adhering to San Rafael’s ADU regulations, you can successfully add a valuable and functional space to your property.