Concrete in Stevenson Ranch

In writing, before work starts. Hardscape is named in the HOA's exterior improvement rule. Bring a physical sample of the finish and the color.

County Public Works, on its road permit side. Public Works says work anywhere in the County's right of way needs its permit, and it lists driveways, curb drains, sidewalks, curbs and gutters under Road Construction Permits, with the application made in EPIC-LA. It defines the right of way as the roads and walks lying between private properties, so the apron, the curb cut and the public walk at your lot usually sit in it. A driveway replacement can therefore carry a road permit, possibly a building permit, and the committee letter. The line where your lot ends gets marked before demolition, so nobody breaks out a public sidewalk panel without the permit in hand. Sources: LA County Public Works, Land Development, Road Permit FAQ, questions 6 and 9, read 13 September 2026. LA County Public Works, Road Permits page, definition of road right-of-way, read 13 September 2026

Plan the street before pour day. County Public Works has a road permit field office in Valencia. Its FAQ says a dumpster in front of a house needs a Road Encroachment Permit, and so does equipment parked in the street overnight, so settle the bin and the pump before either one arrives.

Four feet, counted from the underside of the footing up to the wall's top, and that figure holds only for a wall carrying no surcharge. Surcharge means extra load on the retained soil, such as a driveway, a sloping bank above or a structure close to the top. Because the footing counts, a wall showing three feet above the patio can already be past the limit. Two more County rules sit beside it. Grading needs its own permit unless an exemption fits, and a grading permit does not include retaining walls, which are permitted on their own. Among the listed exemptions is a small excavation, no more than 50 cubic yards, and even that one carries depth and cut slope limits. Terracing a sloped back yard on a Stevenson Ranch hillside lot can outgrow it quickly. Sources: LA County Code Title 26 section 106.3 item 5, retaining walls, Ord. 2025-0047, 2026 County Building Code effective 1 January 2026. LA County Code Title 26 Appendix J, sections J103.1 and J103.2 item 8, grading permit and excavation exemption, 2026 County Building Code

It may be. The County's exemption list includes walks and driveways close to grade that are not over a basement or a story below and are not part of an accessible route. Building and Safety confirms it for your scope, and the committee letter is needed either way.

Because the State has studied this ground closely. Its seismic hazard report for the Newhall quadrangle lists the Towsley and Pico formations among those where existing landslides are very abundant, and puts roughly 26 percent of that quadrangle in the earthquake induced landslide zone. Next door, 39 percent of the Oat Mountain quadrangle is zoned. Stevenson Ranch straddles both maps. Under County code, ground whose natural grade is 25 percent or steeper counts as Hillside Management Area, and the County maps slopes that steep beside the tracts. A flat front walk needs none of this. A wall along a slope's crest, a slab on placed fill or a stair cut into the hill is where an engineer's input pays for itself. Sources: California Geological Survey, Seismic Hazard Zone Report 04, Newhall Quadrangle (report 1997, copyright 2001). California Geological Survey, Seismic Hazard Zone Report 05, Oat Mountain Quadrangle. LA County Code Title 22 section 22.14.080, definition of Hillside Management Area, Municode Supplement 146 Update 2, online 2 September 2026

For a walk or a patio, very little. For a heavy pad or a tall wall, a soils engineer can say whether it needs deeper footings or better ground beneath it, and that answer comes before the forms go in.

Not onto Zone 25 land. A 2016 County report says those slopes are easements shared by every owner in the development, and that only owners in the zone pay the assessment for them. Pour to your own line and stop.

Somewhere planned, and never over the top of a slope. New concrete sheds water that used to soak in, and on a hillside lot that water can soften the ground below a wall or wash across a planted easement. The slab gets a set fall, and drains or a channel carry the water to an outlet on your property. Who maintains any existing slope drains is something to check in your own documents, never something to assume.

Rarely. The County requires a Conditional Use Permit for development in a Hillside Management Area, but it excepts a single lot where total cut plus fill stays under a figure far larger than any back yard patio. On a normal job, the grading and wall permits are the ones that matter.

It can. County zoning in Stevenson Ranch changes from tract to tract, with RPD, R-1-5000 and R-A-10000 each showing up on the County zoning map. A widening gets checked against your parcel's own zone, and the committee still decides how it looks.

Pools and spas appear by name in the committee's rule, so a new deck around one is part of the submission. If the work moves a gate or a section of the pool barrier, that barrier needs a permit, because the County exempts ordinary fences but not ones serving as a pool or spa barrier. For the surface, pick a finish with grip when wet and a color light enough to cross barefoot in August.

No. The fuel modification unit at County Fire does not review retaining walls, and its exemption sheet names fences and gates as well.

It can. Stevenson Ranch is mapped Very High well away from the hillsides, and a band of concrete or gravel where bark mulch or shrubs used to meet the wall leaves embers less to catch close to the house. That is sensible practice, your parcel's fire rules get checked for anything more, and it pairs well with a new walk around the side yard.

Carefully, and usually with the County first. Paving or trenching within the protected zone of an oak, which covers the soil beneath the canopy plus a margin past the drip line, is encroachment under the County oak ordinance and needs a permit. Forms, spoils and the truck's path stay outside it. Where a walk has to pass an oak, a route that swings wide is often the simplest fix. Sources: LA County Code Title 22 section 22.174.030, oak tree permit applicability, Ord. 2019-0004. LA County Code Title 22 section 22.14.150, definition of protected zone

Read the pattern before deciding. Most Stevenson Ranch homes date from the 1990s and 2000s, so a driveway poured with the house has had decades of sun, sprinklers and car weight. A few tight shrinkage cracks near joint lines are normal aging. A crack that keeps widening, one side sitting higher than the other, or a slab tilting toward a slope points to the ground, and replacing the concrete without fixing that means paying twice.

Through EPIC-LA, online and in advance. The footing and its steel are seen before the pour, so that footing stays open until the visit.

No. Run them side by side. They answer different questions, and nothing gets broken out until both are in hand.

Check before building one. The County exempts fences under a height limit, but its code text gives no separate figure for masonry, so a block wall's footing, height and any soil it holds back get confirmed with Building and Safety during design. The committee sees the wall either way.

Not on a slope. Steps cut into a hillside lot often need a retaining edge, a drainage plan, handrails and sometimes an engineer. Where the drop is large, a raised deck where the yard drops away can be the lighter structure, and neither one can land on a Zone 25 easement.

Usually, with smaller equipment and more trips. The route matters on a hillside lot, because debris cannot sit on the district slope and street storage may need its own permit. Haul out is a separate line in the quote.

The parts that decide the price before the finish does. It shows the committee package, the County building or grading permits the scope needs, any road permit for the apron or the street, and whether soils work is expected given the landslide, liquefaction and slope mapping near your lot. Demolition, base preparation, reinforcement, joints, drainage and finish are separate lines, because base work is the part nobody sees once it is covered. The property line against any Zone 25 easement is marked on the plan. You get it in writing, at a fixed price, with one person answering for the job from the first look at the yard to the last walkthrough.