How Sacramento Handles Accessory Structures: A Practical Guide

Sacramento maintains 183 local ordinances across all categories, and 5 of those deal specifically with accessory structures. Here is a breakdown of what the city actually requires, what is prohibited, and where Sacramento falls on the strict-to-permissive spectrum compared to other cities.

ADU Rules

Sacramento City Code §17.228.105 governs ADUs per CA Gov Code §65852.2. Detached ADUs up to 1,200 sq ft allowed with 4 ft side/rear setbacks. Attached ADUs up to 25 ft height. ADUs under 750 sq ft exempt from impact fees. JADUs up to 500 sq ft within primary structure. ADUs built after Jan 1, 2020 cannot be used as STRs.

Key details: Code: Sacramento City Code §17.228.105. State Law: CA Gov Code §65852.2. Max Size (detached): 1,200 sq ft. Setbacks: 4 ft side/rear. Impact Fees: Exempt under 750 sq ft.

Cities cannot deny conforming ADU applications. Unpermitted ADU construction: standard building code enforcement.

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

Shed Rules

Sacramento sheds under 120 sq ft don't need a building permit (Sac. City Code §15.20). Max 18 ft overall height, 10 ft wall height, min 4 ft from main house, and zero electrical/plumbing for the permit exemption. Setback rules still apply.

Key details: Permit-Exempt Size: 120 sq ft or less, no utilities. Max Overall Height: 18 feet. Max Wall Height: 10 feet. Distance from Main Building: 4 ft minimum. Rear-Yard Coverage Cap: 33% of required setback.

Tiny Homes

The City of Sacramento does not have a stand-alone movable tiny house (THOW) ordinance like neighboring West Sacramento's Ordinance 24-9. Tiny homes are only allowed as permanent dwellings when built on a permanent foundation and permitted as an Accessory Dwelling Unit under City Code Chapter 17.228, Article XIV (ADU regulations) and the 2022 California Building Code adopted in SCC Title 15.

Key details: Tiny Home on Foundation: Permitted only as ADU per SCC Ch. 17.228, Art. XIV. Movable Tiny House (THOW): Treated as RV; not a legal dwelling on residential lots. Building Code Adoption: 2022 CBC adopted in SCC Title 15. RV Classification Authority: Cal. Health & Safety Code 18010; Title 25 CCR. Compare West Sacramento: West Sac Ord. 24-9 (2025) allows THOWs; Sacramento has not adopted similar rule.

Living in a recreational vehicle or movable tiny house on private residential property is treated as an unlawful occupancy under SCC Title 17 zoning and the California Building Code adopted in SCC Title 15. The Code Enforcement Division can issue administrative citations under SCC Chapter 8.04 with escalating fines and require removal of the unit. Unpermitted use of an outbuilding as a dwelling can also trigger California Health and Safety Code substandard-housing notices.

This is one of the stricter rules in Sacramento's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Carport Rules

Sacramento regulates carports under City Code Chapter 17.624 (Residential Accessory Structure and Use Regulations). Attached carports are governed by section 17.624.040 and must meet minimum interior dimensions of 10 feet wide by 20 feet deep, while detached carports follow the setback and height limits in section 17.624.050.

Key details: Code Chapter: SCC Ch. 17.624. Attached Carport Section: SCC 17.624.040. Detached Carport Section: SCC 17.624.050. Min Carport Dimensions: 10 ft wide x 20 ft deep. Max Detached Height: 18 ft overall / 10 ft wall.

Building or expanding a carport without the required building permit is a Sacramento City Code violation subject to administrative penalties under SCC Title 8 (Health and Safety) and stop-work orders from the Building Division. Unpermitted carports must typically be brought into compliance or removed; ongoing zoning violations can result in administrative citations and recordation of a code-enforcement lien against the property.

Garage Conversions

Garage conversions in Sacramento are regulated as ADUs or accessory structures under Sacramento City Code §17.228.105 and CA Gov Code §65852.22 (JADU rules). Conversion permits required. AB 2097 means off-street parking cannot be required if within ½ mile of transit.

Key details: Code: Sacramento City Code §17.228.105. JADU: Up to 500 sq ft within primary structure. Permit: Building permit required. Parking: AB 2097 – no replacement required near transit. State Law: CA Gov Code §65852.22.

Unpermitted conversion: standard building code enforcement. Must bring to code or restore to garage. Safety violations: immediate correction.

If you are coming from a city with tighter rules, you will find Sacramento gives residents more flexibility on garage conversions.

The Bottom Line

Compared to many U.S. cities, Sacramento gives residents more room on accessory structures. 2 of the 5 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.

All of the above reflects Sacramento's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.