Before You Build in Los Angeles, CA: Permit & Rule Checklist (2026)

Los Angeles Municipal Code §12.22 C.20 prohibits barbed wire, razor ribbon, and electrified fences in residential zones, allows chain-link with conditions, and limits height to 3.5 feet in front yards and eight feet in side and rear yards.

Front yard fences max 3.5 feet in R zones (42 inches). Side/rear yard fences up to 8 feet on lots 40+ feet wide; 6 feet on narrower lots. LAMC §12.22.C.20(f).

Fences under 6 feet in residential side/rear yards and under 3.5 feet in front yards generally do not require a building permit in LA. Fences exceeding these heights, retaining walls over 3 feet, and any fence with electrical components require LADBS permits. Block wall fences need engineering review.

California Good Neighbor Fence Act (Civil Code 841) requires adjoining landowners to share equally in the cost of maintaining a boundary fence. The presumption of equal responsibility can be overcome by prior written agreement. Disputes over fence maintenance or replacement are handled in civil court. LA does not require neighbor notification for fence construction within code limits.

LAMC 91.6109 requires all pools, spas, and water features with 18+ inches of water to be enclosed by a barrier at least 60 inches high (residential) or 5 feet (public). Gates must be self-closing and self-latching. New residential pools must include at least 2 of 7 drowning prevention features. Chain-link must be 11-gauge minimum and masonry requires 12-inch concrete foundation.

Retaining walls over 3 feet in height require a building permit from LADBS. A privacy fence may be placed on top of a retaining wall but the combined height cannot exceed 6 feet. Walls must maintain 3-foot horizontal spacing between tiers. Hillside retaining walls have additional engineering and grading permit requirements.

Above-ground pools with water 18+ inches deep are subject to the same barrier requirements as in-ground pools under LAMC 91.6109. If the pool structure itself serves as the barrier, the ladder or steps must be removable or surrounded by a separate barrier. Portable pools under 18 inches deep are exempt from barrier requirements but still subject to water safety rules.

LAMC 91.3109 and 91.6109 require residential pool barriers at least 60 inches high with self-closing, self-latching gates. Openings may not allow passage of a 4-inch sphere. At least 2 of 7 drowning prevention safety features required for new pools including mesh fencing, safety covers, or exit alarms. The barrier must be non-climbable with no horizontal members less than 45 inches apart on the outside.

CA Swimming Pool Safety Act (H&S Code 115920-115929) applies in LA. All new residential pools require at least 2 drowning prevention features. Drain covers must comply with the federal Virginia Graeme Baker Act. Pool equipment must meet Title 24 energy standards. Public pools have additional requirements including 5-foot barriers and regular health inspections.

A building permit from LADBS is required for construction of any in-ground or permanent above-ground swimming pool. Electrical and plumbing permits are also needed. Plans must show barrier compliance, drainage, and setbacks. Pools in hillside areas may require additional grading permits. Express permits are available for simple installations meeting standard criteria.

Hot tubs, spas, and portable spas are included in the LAMC definition of swimming pool and are subject to the same barrier and safety requirements when containing 18+ inches of water. Covers meeting ASTM F1346 can serve as one of the required drowning prevention features. A lockable safety cover may reduce but not eliminate barrier requirements. Electrical installation requires a permit.

Los Angeles follows CA state ADU law (Gov Code §65852.2). Detached ADUs up to 1,200 sq ft. 4-ft side/rear setbacks. 16-ft height limit (18 ft near transit). Solar required. LADBS permits.

Garage conversions to ADU allowed under CA state ADU law. No replacement parking required. Existing footprint exempt from setback requirements. Pre-approved plans available.

Carports are treated as accessory structures under LA zoning code and require a building permit from LADBS. Standard residential setbacks apply. Carports converted to ADUs no longer require replacement parking under state law (AB 68). Open-sided carports may have reduced setback requirements compared to enclosed garages. Maximum lot coverage rules apply.

Sheds and accessory structures on private property require LADBS building permit above certain size thresholds. VHFHSZ and flood zone properties have additional requirements.

Los Angeles permits movable tiny homes (MTH) as ADUs through a ministerial process in residential zones per LAMC 12.22 A.33. MTHs must meet ANSI A119.5 or NFPA 1192 standards. They are restricted in VHFHSZ hillside areas. Sprinklers are not required for MTHs if not required for the primary residence. Standard ADU size, setback, and lot requirements apply.

Open burning of trash, yard waste, and debris is prohibited in Los Angeles. South Coast AQMD governs. Recreational fires in approved containers may be allowed but subject to Spare the Air restrictions.

Recreational fires in fire pits are allowed in Los Angeles but must comply with SCAQMD Rule 444 and LAMC fire code provisions. Fires must be in approved containers, no larger than 3 feet in diameter, at least 15 feet from structures, and never during SCAQMD no-burn days. Wood-burning fire pits may be further restricted in the VHFHSZ.

Street trees are maintained by StreetsLA Urban Forestry Division and residents may not trim or remove them without authorization. Private tree trimming does not require a permit unless the tree is a protected species under LAMC 46.00. Protected species include CA Live Oak, Southern CA Black Walnut, Western Sycamore, and CA Bay. Improper trimming of a protected tree can constitute removal under the ordinance.

LADWP Water Conservation Ordinance limits sprinkler watering to 3 days per week based on address, with 8-minute cycles per station. No watering between 9 AM and 4 PM. No hosing driveways or sidewalks. First violations receive a warning; subsequent violations carry fines from $100 to $600. Commercial non-functional turf irrigation with potable water is banned statewide.

LAMC Article 6 (Sections 46.00-46.06) established by Ordinance 177404 requires a permit from the Board of Public Works for removal or relocation of any protected tree. Protected species include California native oaks, Southern California Black Walnut, Western Sycamore, and California Bay measuring 4+ inches cumulative diameter at 4.5 feet above ground.