Los Angeles County has the oldest and most varied housing stock in Southern California. A bungalow from the 1920s, a post-war tract house, a 1970s apartment conversion and a 2015 build can sit on the same block. That matters more for track lighting than anything about the track itself, because track lighting is a long run of fixtures on one circuit, and the circuit in an older Los Angeles house is frequently not what the installer assumed. If the lighting you already have has

A retaining wall is the only thing in a typical backyard that is holding back a force all day, every day, forever. Everything else sits there. A retaining wall works. That is why it has requirements that a garden wall does not, and why the failures are different in kind — a fence leans, a retaining wall comes down. The two triggers for engineering Everyone knows about height. Fewer people know about the second one, and it is the one that catches projects. **Height.** Jurisdic

Walls in a garden range from a plastic strip holding mulch in place to an engineered structure with a footing and steel. They get discussed as if they were the same category of decision, and they are not. Here is where the lines actually fall. Edging: keeping materials apart The job is separation. Keeping mulch out of the lawn, gravel off the patio, decomposed granite on the path. Steel edging. Thin profile, clean line, follows curves well, lasts. The best answer for most gar

On a ramp, the railing is not trim. It is the part someone uses to control their descent, and it is the part that stops a wheel or a person from going over the edge. Those are two different jobs, done by two different components, and a ramp frequently needs both. Handrail and guardrail are not the same thing A handrail is what you hold. It is sized and shaped to be gripped, mounted at a height that works for a hand in motion, and continuous along the run so you never have to

Residential accessibility is about making a home work for the person living in it. Commercial accessibility is a legal standard, it is measured with a tape and a level, and in California it carries litigation exposure that residential work does not. The good news is that it is specific. Nothing on the list is a matter of opinion. The trigger: alterations and the path of travel When you alter an area of a building that contains a primary function, you are generally required to

Every ramp starts with one measurement: the vertical distance from the lower surface to the upper one. Everything else follows from it, and it follows mathematically. This is why so many ramp projects stall. People imagine a ramp fitting where a set of steps is, and a ramp needs many times the horizontal distance that steps do. The slope ratio, and what it means in feet The accessibility standard for a ramp is a maximum slope of one unit of rise for every twelve units of run

A fence between two properties is not just your fence. California law treats a boundary fence as a shared responsibility, and it expects you to talk to your neighbor before you build. That, plus the fact that almost nobody actually knows where their property line is, makes boundary fencing the most reliable source of neighbor conflict in residential construction. The Good Neighbor Fence Act, in plain terms California's Civil Code includes a presumption that adjoining landowne

Somewhere between your water meter and your sprinklers there is an assembly whose only job is to make sure water that has been in the irrigation system can never travel back into the water you drink. It is the least interesting piece of hardware in the yard and the one with the most serious reason to exist. Why backflow happens at all Water systems are pressurized, and pressure normally pushes water one direction. But pressure can drop — a main break, heavy fire-fighting draw

Large parts of Riverside County are mapped in a Very High Fire Hazard Severity Zone. If your address is in one, the rules for anything built outside are different, and so are the rules for what grows next to it. This is not a formality. It changes materials, it changes clearances, and in recent years it has started to change what you are allowed to have in the first few feet around a structure. First: find out whether this applies to you Fire hazard severity zone maps are pub

Here is the failure we get called about. A new fire feature was installed, and the flame is weak. Or it is fine until the pool heater cycles on, and then it drops. Or the furnace kicks in on a cool night and the fire pit goes out. It is almost never the fire feature. It is the gas supply, and the problem was created before the trench was backfilled. Gas sizing is about the whole house, not the appliance A gas piping system is sized for the total connected load on the meter an

An outdoor fireplace looks like a decorative object. Structurally and legally it is four separate things stacked on top of each other: a foundation, a firebox, a chimney, and a fuel supply. Each has its own requirements and each is a common failure point. The footing, which is the part nobody sees A masonry fireplace is heavy and it is tall, which is the worst combination for anything sitting on expansive clay. It needs a real footing — thick, extending beyond the structure o

Collecting water is the easy half of drainage. Catch basins, pipe, trench — that is plumbing, and it is solvable on any lot. The hard half is the sentence at the end: and then it goes where? On tract lots in Corona, Lake Elsinore and Wildomar, where grade differences are small and houses are close, that question is where most drainage projects actually get decided. The grade you are supposed to have The residential code expects the ground to fall away from the foundation — a

Pool decks get replaced for three reasons: the old surface is too hot to walk on, it is slippery when wet, or it has cracked and lifted and become a trip hazard. Pavers answer all three well. They also put you in contact with a part of California law that surprises people, because it attaches to permits rather than to pools — and a deck project can pull a permit. Start with the rule, because it is the part that changes the project California's Swimming Pool Safety Act require

An accessory dwelling unit is the largest thing most people will ever build in a backyard, and the rules around it are the most favorable they have ever been in California. They are also widely misunderstood, in both directions. People assume their city can say no when it cannot, and assume their lot can take one when it may not. Those are two different questions and they get answered by two different sets of facts. What the state guarantees, and your city cannot take away Th

There is no California fence height. There is a Temecula fence height, a Murrieta fence height, and a different answer again if your address turns out to be in unincorporated county. People move here from Los Angeles or San Diego, apply what they knew, and build something that has to come down. Here is what actually applies in southwest Riverside County. Temecula: three feet in front, six everywhere else The front setback is the strict one. Solid fences, hedges and walls in t

A pool is one trade. The backyard around it is five, and the rules that govern it are stricter than the rules for the pool itself. This is about everything outside the water line: the barrier, the deck, the equipment pad and the drainage. And it starts with a requirement that catches people who were not building a pool at all. Remodeling an existing pool triggers the barrier requirement The California Swimming Pool Safety Act, in Section 115922 of the Health and Safety Code,

In southwest Riverside County the hard part of a backyard project is almost never the design. It is finding out which set of rules your particular lot falls under, because two houses on the same street can answer that question differently. Here is what actually governs a patio cover or a deck in Temecula, Murrieta, Wildomar and Lake Elsinore, and the layer that most homeowners here do not find out about until plan check. First: when you need a permit at all The thresholds are

Railings are the part of a project where taste and code collide hardest. A client picks a look from a photograph, and then four numbers decide how much of that look survives. Here are the four numbers, what they mean in practice, and why the same railing detail passes on one job and fails on the next. Number one: 30 inches, which decides whether you need a guard at all A guard is required on an open-sided walking surface located more than 30 inches above the floor or grade be

This is the most common backyard question in Los Angeles, and the short answer is three numbers. The long answer is why those numbers are not the whole story on most lots. The three numbers The rule lives in Section 12.22 C.20 (f) of the Zoning Code. In most residential areas: In the required front yard, a fence or wall may be up to 3 feet 6 inches In the required side and rear yards, up to 6 feet Depending on lot size and location, the side and rear limit may be increased to

California has two balcony inspection laws, not one. They were written for different owners, they run on different clocks, and they require different people to do the inspecting. Both first deadlines are now behind us. If you own apartments or sit on a condominium board and no inspection has been done, this is the part worth reading carefully. What the laws actually cover Both statutes use the same awkward phrase: exterior elevated element, usually shortened to EEE. An EEE is