Pasadena ADU Standards
Prefab ADU in Pasadena
What is an Accessory Dwelling Unit (ADU)?
An ADU is a self-contained residential unit located on the same lot as a primary home. It offers additional living space, potential rental income, or serves as a solution for multi-generational housing. A prefab ADU is a permanent, factory-built structure that complies with local zoning and building codes, making it ideal for long-term occupancy.
Although tiny homes are often confused with prefab ADUs, there are key differences. Tiny homes are small, mobile units built on wheels, while prefab ADUs are stationary and designed for durability and permanence. While tiny homes can sometimes serve as ADUs, they typically face more stringent zoning regulations due to their mobility.
Planning to Build an ADU in Pasadena?
With recent updates to ADU regulations, Pasadena has seen an increase in ADU construction. If you’re thinking about building an ADU in Pasadena, LiveLarge is here to guide you through the essential requirements, ensuring your project proceeds smoothly from start to finish.
Types of ADUs:
- Junior ADU (JADU): Involves converting part of a single-family home into a new dwelling unit that is no more than 500 square feet and may share a bathroom with the main home.
- Conversion ADUs: Created by converting part of an existing single-family or multi-family home or by converting all or part of an accessory building (such as a garage, shed, or studio). This includes garage conversions.
- Attached ADUs: Built as an addition to a single-family home.
- Detached ADUs: Located in free-standing buildings separate from the main single-family home or multi-family building.
Height Regulations
- 16 feet
Maximum ADU Size
- JADU: 500 sq. ft.
- Attached ADUs: 800 sq. ft. or 50% of the main dwelling size
- Detached ADUs: 850 sq. ft. for studios or one-bedroom units, 1,000 sq. ft. maximum for units with more than one bedroom (for properties under 10,000 sq. ft.) and 1,200 sq. ft. maximum for units with more than one bedroom (for properties 10,000 sq. ft. or larger)
Setback Requirements
- Front: Depends on zoning
- Sides & Rear: 4 feet
- Main house: 6 feet
Parking Requirements:
- JADUs & Conversion ADUs: Do not require parking.
- Attached & Detached ADUs: Require 1 parking space, unless your project qualifies for an exemption from parking requirements.
For more information, contact Pasadena City Planning at (626) 744-4009 or via email at AskPlanning@SouthPasadenaCA.gov.
Let LiveLarge Home be your trusted partner for your ADU journey in Pasadena. With our expertise in design, construction, and pre-approved plans, we ensure your project aligns with local standards and maximizes your property’s potential.
Contact us today to start your ADU project!
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