How Anaheim Handles Accessory Structures: A Practical Guide

Anaheim maintains 243 local ordinances across all categories, and 9 of those deal specifically with accessory structures. Here is a breakdown of what the city actually requires, what is prohibited, and where Anaheim falls on the strict-to-permissive spectrum compared to other cities.

Shed Rules

Anaheim requires building permits for most accessory structures. Structures under 120 sq ft typically exempt. All structures count toward lot coverage. Outdoor storage must be screened per AMC §18.38.200.

Key details: Exempt: Under 120 sq ft. Lot Coverage: All structures count. Screening: 6 ft if visible. Code: AMC §18.38.200.

Building without permit: stop-work order. Unscreened storage: code enforcement. Exceeding lot coverage: mandatory removal.

ADU Permits

Anaheim processes ADU and JADU applications ministerially under Anaheim Municipal Code (AMC) Chapter 18.38.110 and California Government Code §65852.2 (as amended by AB 68, AB 881, and SB 13). The Anaheim Planning and Building Department reviews permits over-the-counter with a 60-day state-law deadline. Detached ADUs are allowed up to 1,200 sq ft and JADUs up to 500 sq ft.

Key details: Code Section: AMC 18.38.110; Gov. Code §65852.2. Review: Ministerial, 60-day cap. Detached Max: 1,200 sq ft. JADU Max: 500 sq ft. Setback: 4 ft side/rear.

Building an ADU without a permit is a violation of AMC Chapter 18.38 and the California Building Standards Code, subject to stop-work orders, code-enforcement citations under AMC Title 1, and double permit fees on after-the-fact applications. Unpermitted ADUs are ineligible for the ministerial path until properly permitted.

If you are coming from a city with tighter rules, you will find Anaheim gives residents more flexibility on adu permits.

ADU Owner Occupancy

Anaheim cannot require owner occupancy on standard ADUs permitted after January 1, 2020 because California Government Code §65852.2(a)(6), made permanent by AB 976 (2023), prohibits local owner-occupancy mandates. Junior ADUs (JADUs) under AMC 18.38.110 still require owner occupancy of either the primary dwelling or the JADU because they share walls and utilities.

Key details: Standard ADU: No owner occupancy (state preempts). JADU: Owner occupancy required. State Law: Gov. Code §65852.2(a)(6); AB 976. Deed Restriction: Recorded for JADUs. Condo Conversion: Not adopted (AB 1033).

Standard ADU owner-occupancy is preempted — no city enforcement. JADU owner-occupancy violations can result in revocation of the Certificate of Occupancy, code enforcement under AMC Title 1, and breach of the recorded deed restriction. Misrepresenting JADU occupancy on permit applications is permit fraud.

Anaheim is more permissive than most cities when it comes to adu owner occupancy. That said, there are still limits.

ADU Rental Restrictions

Anaheim ADUs may be rented long-term (30 days or more) without separate licensing. Short-term rentals under 30 days are prohibited citywide by Anaheim Municipal Code Chapter 4.05 (Short-Term Rental Ordinance), originally adopted in 2014 and reaffirmed after litigation; ADUs are not eligible for any STR permit. State law (Gov. Code §65852.2(a)(7)) also restricts STR use of ADUs permitted after January 1, 2020.

Key details: Long-Term (30+ days): Permitted. Short-Term (<30 days): Banned (AMC Ch. 4.05). Legacy Permits: Phasing out (pre-2014). State Law: Gov. Code §65852.2(a)(7). Fines: $1,000+/day.

Operating an Anaheim ADU as a short-term rental is a municipal violation under AMC Chapter 4.05 with administrative fines escalating to $1,000+ per day. The City actively monitors Airbnb/VRBO listings and issues citations. Repeat violations can result in property-specific abatement orders and recordation of nuisance notices.

This is not one of those rules that cities tend to ignore. Anaheim actively enforces its adu rental restrictions requirements.

ADU Impact Fees

Anaheim exempts ADUs under 750 square feet from all impact fees per California Government Code §65852.2(f)(3). ADUs 750 sq ft or larger pay impact fees proportionate to the principal dwelling's square footage. School district fees are governed by SB 13 (2019). Standard building permit and plan-check fees still apply through the Planning & Building Department fee schedule.

Key details: Under 750 sq ft: All impact fees waived. 750+ sq ft: Proportional to principal dwelling. State Law: Gov. Code §65852.2(f). School Fees: Proportional under SB 13. Utility Tap: Waived when sharing service.

Misrepresenting ADU square footage to claim the under-750 exemption is permit fraud and can void the Certificate of Occupancy. Failure to pay required permit fees results in permit denial. Anaheim Public Utilities may refuse service connections without paid tap fees.

Anaheim is more permissive than most cities when it comes to adu impact fees. That said, there are still limits.

Garage Conversions

Anaheim facilitates garage conversions to ADUs under state law. No replacement parking required. Building permits required. Conversions exempt from setback requirements. Must meet building code standards.

Key details: Parking: No replacement needed. Setbacks: Exempt for conversions. Permits: Required. Rental: 30+ days only.

Conversion without permit: stop-work order. Non-compliant conversion: mandatory correction. STR use: violation.

ADU Rules

Anaheim regulates accessory dwelling units under AMC Section 18.38.015 and state law. One ADU is allowed per single-family lot with an existing or proposed primary home. JADUs up to 500 sq ft are permitted within the existing residence.

Key details: Max ADU Size: 800 sq ft (single-family). JADU Max: 500 sq ft. Side/Rear Setback: 4 ft (new detached). Code: AMC 18.38.015.

Building without permit: stop-work order and fines. Unpermitted ADU occupancy may face code enforcement action and daily penalties.

Carport Rules

Anaheim requires carports and covered parking structures to comply with AMC Title 18 zoning standards. Carports may be installed in areas designated for open-surface parking subject to Planning Director review and approval.

Key details: Max Height: 1 story or 16 ft. Permit: Building permit required. Use: Must park operable vehicles. Code: AMC 18.04/18.42.

Unpermitted carport construction: stop-work order and correction notice. Using carport solely for storage may trigger code enforcement action.

Tiny Homes

Anaheim does not have a separate tiny home ordinance. Tiny homes on foundations are regulated as ADUs under AMC 18.38.015 with minimum 150 sq ft floor area. Tiny homes on wheels are treated as recreational vehicles subject to parking restrictions.

Key details: On Foundation: Treated as ADU. Minimum Size: 150 sq ft. On Wheels: Classified as RV. Code: AMC 18.38.015.

Occupying a tiny home on wheels as residence: code enforcement citation. Unpermitted tiny home construction: stop-work order and mandatory permit compliance.

The Bottom Line

Compared to many U.S. cities, Anaheim gives residents more room on accessory structures. 3 of the 9 rules here are rated permissive. But permissive does not mean unregulated. There are still requirements, and the city does enforce them when violations are reported.

These rules come from Anaheim's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.