Redondo Beach

Redondo Beach allows Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) on residential properties as secondary housing units that are fully independent, with their own kitchen, bathroom and sleeping area. ADUs must remain subordinate to the primary residence and are intended to complement the main home. 

The City updated its ADU regulations through Ordinance No. 3264-23 to align with California state law and ADUs that meet objective standards are approved through a streamlined ministerial process.

Redondo Beach aligns with California’s broader ADU legislation but has its own requirements for height, setbacks and design review.

• Detached ADU: A newly constructed, standalone unit separate from the primary dwelling, subject to size and height limits (typically up to 800 sq ft for streamlined approval and height limits of 16-18 ft depending on location)
• Attached ADU: A unit that is attached to the primary dwelling, sharing at least one wall and may be allowed greater height (up to 25 ft under certain conditions)
• Conversion ADU: A unit created within existing space of a primary residence or accessory structure, or with up to a 150 sq ft addition for ingress/egress
• Junior ADU (JADU): A unit located entirely within a single-family residence with a maximum size of 500 sq ft and subject to additional requirements such as deed restriction

• Maximum Size:
  
  • Detached: Up to 800 sq ft for streamlined detached new construction ADUs
    
    
• Setbacks:
  
  • Detached ADUs must be at least 4 feet from side and rear lot lines
    
    
• Height Limits:
  
  • Detached: 16 ft standard, up to 18 ft if near transit or in applicable cases
  • Attached: Up to 25 ft under certain conditions
    
    
• Parking Requirements:
  
  • Typically, 0-1 parking space per ADU depending on the project
  • One parking space may be required per ADU, but exemptions apply
  • No parking required in certain cases, including:
    
    • When the ADU is within ½ mile of public transit 
    • When the ADU is created within an existing structure
    • When other state exemption conditions are met

• No replacement parking required when converting a garage into an ADU
• Required parking (if applicable) can be located in driveways or setbacks and may be tandem

• Streamlined ministerial approval for qualifying ADUs (no public hearing required)
• Building permit is required
• Applications must be complete for processing
• JADUs require a recorded deed restriction
• ADUs must comply with applicable development and building standards

Homeowners should also review Redondo Beach current fee schedule, utility connection requirements and fire code compliance.

ADU applications are subject to a 60-day approval timeframe for complete applications under the ministerial review process. 

Engaging professionals familiar with Redondo Beach ADU process can help streamline approval and potentially reduce delays.

ADUs are allowed on residentially zoned properties with an existing or proposed primary dwelling. Single-family properties may have ADUs and JADUs subject to limitations. Multifamily properties may allow ADUs within existing space (up to 25% of existing units, with at least one allowed) and up to two detached ADUs per lot. 

Some ADUs must meet all development standards applicable to the underlying zoning district unless qualifying for streamlined provisions.

For the most current and complete information, refer directly to the City of Redondo Beach.

ADU regulations are constantly evolving and may vary by city, county, or even neighborhood. Before starting your project, it’s always best to consult with a trained professional or certified ADU Specialist to ensure your plans align with current local requirements.