Orange ADU Regulations & Building Guide

Orange is located in Southern California and is renowned for its cultural heritage and beautiful landscapes. It provides residents with both urban amenities and suburban comfort.

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.

Orange Local Requirements

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

Common local considerations in Orange 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)

Orange, California, is a historic city located in Orange County, known for its well-preserved heritage, charming Old Towne district, and vibrant community atmosphere. With a population of approximately 138,691, Orange offers a blend of historic character and modern amenities, making it a desirable place for residents and businesses alike.

Geography and History

Situated about 30 miles southeast of downtown Los Angeles, Orange is noted for its preserved historic architecture and quaint downtown area. The city’s history dates back to its founding in 1888, and it is renowned for its orange groves and agricultural roots, which shaped its early development.

Local Economy

Orange’s economy is diverse, with several key sectors:

• Healthcare: The city is home to several medical facilities, including the CHOC Children's Hospital and St. Joseph Hospital, which contribute significantly to the local economy.
• Retail and Services: The city features shopping centers, restaurants, and various service providers, contributing to its commercial activity.
• Education: Orange is served by multiple educational institutions, including California State University, Fullerton, which is nearby and influences the local economy.
• Manufacturing and Industry: Includes various manufacturing businesses and industrial operations.
• Tourism and Recreation: The city’s historic sites and cultural attractions draw visitors and contribute to the local economy.

Popular Neighborhoods

Orange offers a range of neighborhoods, each with its unique characteristics:

• Old Towne Orange: Known for its historic architecture, antique shops, and vibrant dining scene, this area is a popular destination for residents and visitors alike.
• Villa Park: A residential area known for its spacious homes and family-friendly atmosphere.
• Orange Park Acres: Features larger properties and a rural feel, with access to equestrian facilities and open spaces.
• Chapman Heights: Offers a mix of residential properties with access to schools and parks.
• Santiago Hills: Known for its hillside homes and views, as well as its proximity to nature trails.

Real Estate Market

Orange’s real estate market includes a variety of housing options, from historic homes to newer developments. The market has seen fluctuations, but the city remains attractive due to its location, historic charm, and amenities. Homes in Orange often feature larger lots and unique architectural styles.

ADU Regulations in Orange

Orange has established Accessory Dwelling Unit (ADU) regulations that align with California state laws while addressing local needs. These regulations aim to facilitate ADU development while maintaining the city’s residential character.

• Zoning: ADUs are permitted in residential zones, including single-family and multi-family districts.
• Types of ADUs: Both attached and detached ADUs are allowed, as well as Junior ADUs (JADUs).
• Size Limits:
  • Detached ADUs: Up to 1,200 sqft.
  • Attached ADUs: Up to 50% of the primary dwelling’s living area or 1,200 sqft, whichever is less.
  • JADUs: Up to 500 sqft.
• Height Restrictions: Detached ADUs are generally limited to 16 feet in height, though some exceptions may apply based on site-specific conditions.
• Parking: Generally, no additional parking is required for ADUs if located within a half-mile of a transit stop. In other areas, one additional parking space may be required.
• Owner Occupancy: As of 2020, there is no owner-occupancy requirement for ADUs, though owner occupancy is required for properties with JADUs.
• Approval Process: ADUs that meet specific criteria are eligible for a streamlined review process to expedite approvals.
• Multiple ADUs: In multi-family properties, up to two detached ADUs are allowed, or ADUs for 25% of the existing units within the structure, whichever is greater.
• Impact Fees: Impact fees for ADUs are often reduced to encourage development and affordability.
• Design Standards: ADUs must be designed to complement the primary residence and adhere to neighborhood character, including architectural compatibility and landscaping requirements.

These regulations reflect Orange’s commitment to increasing housing options while preserving the city’s historic and residential quality.

Cultural Landmarks and Unique Aspects

Orange is known for several unique aspects and cultural landmarks:

• Old Towne Orange Historic District: Features a concentration of historic buildings and a charming downtown area with shops, restaurants, and antique stores.
• Chapman University: A private university with a prominent campus and cultural events that contribute to the community.
• Orange County Zoo: Located in Irvine Regional Park, offering educational programs and a variety of animal exhibits.
• Irvine Regional Park: Provides recreational opportunities including hiking, picnicking, and a historic train ride.

Orange’s ADU regulations aim to support the city’s housing needs while preserving its historic character and residential quality. With its diverse neighborhoods, cultural landmarks, and historic charm, Orange offers a unique living environment in Orange County. The city’s approach to ADU development reflects its commitment to accommodating growth and enhancing the community experience.

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