Driveway Apron and Curb Cut — LA BOE Permit Guide (2026)

The property line is where jurisdiction changes. Everything on the private property side (the driveway surface, the garage apron on-site, drainage to on-site swales) is LADBS territory under LAMC §91. Everything from the property line to the street curb (the parkway, the sidewalk cross-section, the curb cut itself) is BOE territory under LAMC §62.

A new driveway requires TWO permits: a BOE A-Permit for the sidewalk and curb cut work, and an LADBS Residential Driveway Permit for the on-site driveway surface and any drainage modification. The permits are sequential — BOE first for the curb cut, then LADBS for the driveway.

Replacement of an existing driveway without expanding the curb cut or modifying the sidewalk is LADBS-only. The BOE permit is not required for in-kind replacement of the on-site portion.

Adding a second curb cut (a wider driveway, or a side-loading driveway with separate entry and exit) requires a new BOE A-Permit for the new curb cut and typically a letter-review from the LA Department of Transportation (LADOT) for traffic-flow compatibility on high-traffic streets.

The BOE A-Permit application is submitted at the BOE Central District Office (1149 S Broadway, Downtown LA) or at the Valley District Office (6262 Van Nuys Blvd, Van Nuys). Online submittal via the BOE ePermit portal is available for simple curb-cut modifications but complex applications still require in-person drop-off.

2026 fees: $500 for a basic curb-cut-only application (single curb cut, no sidewalk replacement), $1,200 for a standard residential driveway including 10 to 20 feet of sidewalk replacement, $2,500 for a driveway with 30+ feet of sidewalk and a full ADA ramp. Plan-review fees scale with the scope.

Plan-review timeline: 2 to 4 weeks for simple curb cuts, 6 to 10 weeks for driveways requiring ADA ramp design. The review is performed by BOE Public Works inspectors who verify geometry against the S-440 standard plan series.

Required submittal documents: site plan showing the property boundaries and the existing and proposed curb cut, detailed section through the sidewalk showing the transition grade, utility clearance letters (phone, gas, water, electric, cable), and a traffic-control plan if the work closes the sidewalk or traffic lane for more than 2 hours.

LAMC §62-107(d) limits residential curb cuts to a maximum of 13 feet wide for a single driveway serving a single-family home. Homes with two-car garages typically use a 13-foot curb cut; homes with wider three-car garages sometimes use a 20-foot curb cut when approved with a variance.

Circular driveways require TWO curb cuts (entry and exit), each typically 12 to 13 feet wide. The centerline-to-centerline distance between the two curb cuts must be at least 20 feet for sight-line safety.

The driveway apron (the transition from sidewalk level to driveway level) typically spans the full width of the sidewalk — usually 5 feet in LA residential areas. The apron cross-slope must not exceed 2 percent per ADA PROWAG (Public Right-of-Way Accessibility Guidelines) unless the sidewalk is interrupted and a separate ADA ramp is provided.

Maximum driveway apron slope from sidewalk to gutter is 12 percent per BOE S-440-1. Steeper aprons require a longer transition zone or a 'roll-curb' design where the gutter itself ramps down.

The Americans with Disabilities Act and the associated Public Right-of-Way Accessibility Guidelines (PROWAG) require every sidewalk section to maintain a minimum accessible path of 4 feet clear width (5 feet preferred) at no more than 2 percent cross-slope and no more than 5 percent running slope.

When a driveway apron would create a cross-slope greater than 2 percent across the sidewalk, PROWAG §R208 requires either a flat sidewalk crossing behind the apron (the sidewalk stays at 2 percent cross-slope and the apron curves around it) or a detectable warning surface (truncated domes) with an ADA ramp where the sidewalk descends.

The 'flat sidewalk' design is the LA default per BOE S-440-2. It costs more because the sidewalk behind the apron must be reconstructed at the driveway grade rather than continuing the existing sidewalk slope. Typical added cost: $1,800 to $3,400 versus a simple apron-only design.

Detectable warning domes (yellow truncated-dome panels) are required at any curb ramp where the sidewalk meets the street level per PROWAG §R305. These are installed per BOE Standard Plan S-465 for the color (Federal Yellow) and dimensions (0.9 inch base, 0.2 inch height, 1.6 to 2.4 inch center-to-center spacing).

BOE policy per LA City Charter §651(a) requires the property owner to replace any sidewalk sections damaged by construction. The 'broken-sidewalk' threshold: any sidewalk square with visible cracking greater than 1/2 inch wide, any section that is out of level by more than 1/2 inch, or any section that has been trip-hazard-flagged by a prior BOE inspection.

In practice, BOE inspectors flag adjacent sidewalk sections during the A-Permit inspection and require replacement as part of the permit. A 30-foot driveway project with cracked sidewalk on both sides can balloon to 80+ feet of sidewalk replacement.

The 2026 price per sidewalk section (5 feet by 5 feet) is $380 to $620 including sawcut, demolition, new concrete, and cure time. A full 80-foot replacement runs $6,000 to $10,000 on top of the driveway work.

The Sidewalk Repair Program — LA City's 2018 Safe Sidewalks LA program — offers cost-share rebates up to $2,000 per single-family home for sidewalk repair tied to tree-root damage. This does not apply to damage caused by new driveway construction.

Every curb-cut and sidewalk project requires a DigAlert 811 ticket. The state mandate under Government Code §4216 requires notification 2 working days before excavation. The 811 system dispatches each underground utility owner to mark their facilities with color-coded paint (red electric, yellow gas, blue water, orange communications).

Common conflicts in LA residential neighborhoods: gas service laterals running diagonally under the sidewalk at shallow depth (SoCalGas often installs at 18 inches below finished grade, within excavation range for a standard 12-inch sidewalk subgrade), electric service laterals where the meter is on the street-side wall, and telecom pedestals that happen to sit in the proposed curb cut.

Utility relocation costs are borne by the property owner when the utility was installed per code and the relocation is for the convenience of the owner. A gas lateral relocation costs $3,200 to $7,500; a SCE electric service lateral relocation costs $4,800 to $12,000 plus 8 to 16 week scheduling delays.

Water service lateral crossings are typically preserved by keeping the excavation shallower over the lateral and installing a sleeve. DWP (LA Department of Water and Power) inspects the work if the lateral is exposed and re-buried.

Driveway surfaces count as impervious cover. Projects over 500 square feet of new impervious cover trigger the Los Angeles Standard Urban Stormwater Mitigation Plan (SUSMP) requirements under LAMC §64.72. Most residential driveway projects fall below this threshold but larger circular-driveway builds can exceed it.

Permeable paver driveways (using pervious concrete, porous asphalt, or open-jointed unit pavers over a storage layer) can reduce the SUSMP-trigger calculation. Permeable systems count at 50 percent of their surface area toward the impervious-cover total per the LA Bureau of Sanitation guidance.

Driveway drainage at the garage apron — where the driveway meets the garage floor — must drain away from the garage to prevent water intrusion. LADBS requires a 1/4 inch per foot slope for the last 10 feet approaching the garage, with either a trench drain or a positive slope to a side-yard swale.

Stormwater from the curb-cut area should drain to the street gutter, not to the neighbor's property. The BOE permit review verifies that the proposed grading maintains the existing stormwater flow pattern.

BOE inspections for residential driveways: (1) pre-construction inspection verifying utility marking and work-area setup, (2) formwork and subgrade inspection before concrete pour, (3) final inspection after 7-day concrete cure verifying dimensions, slope, and finish.

A compliant residential curb cut with standard sidewalk replacement from permit issuance to final inspection runs 3 to 6 weeks. Add 1 to 2 weeks for ADA ramp integration, add 4 to 8 weeks if utility relocation is required.

Concrete cure times are strictly enforced by BOE. The sidewalk cannot be opened to pedestrian traffic until 3 days after the pour (or earlier if high-early-strength concrete is used with BOE approval). The driveway cannot carry vehicle loads until 7 days after the pour.

Common inspection failures: insufficient expansion joints (BOE S-440 requires joints every 5 feet on sidewalk and at the property line), improper apron slope (over 12 percent), missing detectable warnings on the ADA ramp, and incorrect concrete finish (BOE requires a medium broom finish for traction).

For homeowners coordinating a driveway project with broader outdoor and concrete work — patio, pool deck, outdoor kitchen — see the concrete and outdoor living service page at https://askbaily.com/concrete-outdoor-living-los-angeles.