Homeowner Guides

Your inspector red-tagged the deck railing you just built, and the number he quoted isn't the one your neighbor's deck was built to. Both can be right. California uses different heights for decks and for stairs — here's every measurement, and where the gaps between the balusters come in.

There is a real exemption that lets you build a deck in California without a permit — but it has four conditions, and every single one has to be true. Most backyard decks fail on the one nobody thinks about: the door.

The attic is finished, insulated, carpeted — and the appraiser refuses to count it as a bedroom. Ceiling height is usually the reason. California sets a different minimum for houses, apartments, converted attics and tiny homes, and the gap between them is only a few inches.

The landscaper says anything under four feet is free and clear. He's quoting a real rule — he's just measuring it from the wrong place, and skipping the word that most often cancels the exemption. Here's how California actually counts a retaining wall's height.

If searing a steak sets off the hallway alarm, the alarm is probably in the wrong place. California's code sets minimum distances from the stove, the bathroom door, the heating vents and the ceiling fan — and a separate set of locations for carbon monoxide alarms.

Two straps around the tank looks like a finished job — until an inspector points out that both of them are in the wrong third of the heater. California is specific about where the straps go, and the rule applies to the heater you already own, not just new ones.

Everyone tells you a pool needs a fence. California's law is stranger than that: it asks you to pick two safety features off a list of seven, and a fence is only one of them. Here's the list, and the exact specs a fence has to hit if you choose it.

The shed kit is in the driveway and a neighbor just asked if you pulled a permit. Good news: California exempts small one-story sheds from building permits — the line is 120 square feet. The catch is what the exemption doesn't cover.

Your contractor says five feet, a neighbor swears he built right on the line, and the internet says thirty. All three can be right — three different rulebooks stack on the same lot line, and the strictest one wins.