Whittier ADU Regulations & Building Guide

Whittier is a renowned city in Southern California, known for its rich history and modern amenities. The city offers a mix of recreational activities and cultural events for residents and visitors alike.

California State ADU Laws

California has some of the most progressive ADU legislation in the country. Recent laws including AB 68, SB 13, and AB 881 have significantly streamlined the ADU approval process and reduced barriers for homeowners.

Key California ADU Regulations:

• Size Limits: Detached ADUs can be up to 1,200 sq ft. Attached ADUs can be up to 50% of the primary dwelling or 1,200 sq ft, whichever is less.
• Setbacks: Minimum 4-foot side and rear setbacks for detached ADUs.
• Height: Generally up to 16 feet, with some exceptions for two-story ADUs (up to 25 feet in certain zones).
• Parking: No additional parking required in most cases, especially near transit.
• Owner Occupancy: No owner-occupancy requirement until 2025 for most ADUs.

Whittier Local Requirements

While California state law provides baseline regulations, Whittier may have additional local requirements. GatherADU's team stays current with Whittier's specific zoning codes, architectural guidelines, and permit processes to ensure your ADU project meets all requirements.

Common local considerations in Whittier include:

• Design review requirements and architectural standards
• Utility connection fees and impact fees
• Fire department access requirements
• Neighborhood-specific overlay zones

California law (AB 68, AB 881, SB 9, and subsequent legislation) guarantees your right to build ADUs. Cities cannot:

• Require owner-occupancy for ADUs permitted after 2020
• Require additional parking for ADUs near transit
• Charge impact fees for ADUs under 750 sq ft
• Deny ADUs that meet state minimum standards
• Impose lot coverage limits that prevent a 800 sq ft ADU

If you believe your ADU application is being unfairly denied, California HCD can intervene on your behalf.

California ADU Legislation Overview

California leads the nation in ADU-friendly legislation. The state has passed numerous laws to encourage ADU construction as a solution to the housing crisis.

Key California ADU Laws:

• AB 68 (2020): Reduced local government review time and expanded ADU construction options.
• SB 13 (2020): Limited impact fees and reduced owner-occupancy requirements.
• AB 881 (2020): Prohibited minimum lot size requirements and allowed JADUs in all zones.
• AB 2221 (2022): Further streamlined the ADU approval process.
• SB 897 (2022): Increased height limits for ADUs in certain zones.

California ADU Benefits:

• Property value increase of 20-30% on average
• Rental income potential of $1,500-$3,500+ monthly
• Housing flexibility for family members
• No owner-occupancy requirements (until 2025)

Whittier, California, with a population of approximately 85,525, is a picturesque city located in Los Angeles County. Known for its historic charm, vibrant arts scene, and educational institutions, Whittier has implemented ADU regulations to address housing needs while preserving its unique character.

Geography and History

Whittier is situated at the base of the Puente Hills, offering scenic views and a pleasant climate. The city was founded in the late 19th century and has a rich history tied to the Quaker community, which played a significant role in its development.

Local Economy

Whittier’s economy is diverse, with several key sectors driving growth:

• Education: Home to Whittier College and several other educational institutions.
• Healthcare: Several hospitals and medical facilities contribute significantly to the local economy.
• Retail and Services: Numerous shopping centers and local businesses support the community.
• Arts and Culture: The city has a thriving arts scene with galleries, theaters, and cultural events.

Popular Neighborhoods

Whittier features several distinct neighborhoods, each with its own charm:

• Historic Uptown Whittier: Known for its historic buildings, shopping, and dining options.
• East Whittier: Offers a mix of residential areas with excellent schools and parks.
• Friendly Hills: A prestigious neighborhood with larger homes and golf courses.
• Whittwood: A suburban area with shopping centers and family-friendly amenities.

Real Estate Market

Whittier’s real estate market includes a variety of housing options, from historic homes to modern developments. The increasing demand for affordable housing has led to a growing interest in ADUs as a viable solution for additional living space and rental income.

ADU Regulations in Whittier

Whittier has established ADU regulations to promote housing flexibility while maintaining community standards:

• Zoning: ADUs are allowed in most residential zones, including single-family and multi-family areas.
• Types of ADUs: Both attached and detached ADUs are permitted.
• Size Limits:
  • Detached ADUs: Typically up to 1,200 sqft.
  • Attached ADUs: Up to 50% of the primary dwelling’s living area, not exceeding 1,200 sqft.
• Height Restrictions: ADUs must not exceed the height of the primary dwelling or 16 feet.
• Parking: Generally, one additional off-street parking space is required for ADUs. This requirement may be waived under certain conditions, such as proximity to public transit.
• Owner Occupancy: The property owner is not required to reside in either the primary dwelling or the ADU.
• Approval Process: ADUs that meet zoning and building standards are subject to an administrative approval process.
• Design Standards: ADUs should be compatible with the primary dwelling in terms of materials, colors, and architectural style.
• Multiple ADUs: Typically, only one ADU is allowed per lot, but recent state laws may allow for junior ADUs.

Cultural Landmarks and Unique Aspects

Whittier is celebrated for its cultural heritage and landmarks:

• Whittier College: A prominent liberal arts college with a beautiful campus.
• Pio Pico State Historic Park: The former home of the last Mexican governor of California.
• Whittier Narrows Recreation Area: Offers outdoor activities such as hiking, biking, and picnicking.
• Whittier Museum: Showcases the history and cultural heritage of the city.
• Whittier Greenway Trail: A popular trail for walking, jogging, and biking.

Whittier’s ADU regulations aim to provide flexible and sustainable housing solutions while preserving the city’s unique character and livability. By offering clear guidelines and a streamlined approval process, Whittier encourages the development of ADUs to address housing needs, support economic growth, and enhance the quality of life for residents. The city’s approach to ADUs aligns with its broader goals of promoting diverse housing options, fostering community development, and maintaining its identity as a vibrant and welcoming place to live.

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