A few forces stack up, and most of them are specific to California. The biggest is regulation colliding with real losses. California long capped how much insurers could raise premiums in a given period. While that cap was in place, a run of wildfires and other disasters meant carriers were paying out more than the capped rates let them collect, so several stopped writing new policies or pulled out of the state entirely. When the state later loosened those limits, insurers raised premiums close to the maximum allowed, partly to rebuild margin and partly to guard against the cap coming back. Fewer carriers competing then keeps prices high, since nobody has much incentive to undercut when the liability is this large. What a policy actually covers matters too. Your premium tracks the cost to rebuild the structure, which is separate from the market value of the land under it. In much of Southern California the rebuild cost is a large share of the home's value, but in high-demand coastal pockets the land can be worth far more than the structure, so two homes at the same price can carry very different rebuild costs and very different premiums. On top of that, carriers underwrite more carefully now, asking about roof age, plumbing, and electrical, and sometimes requiring a full inspection before they will issue a policy. If your premium feels high, it's usually some mix of all of these. Shop multiple carriers; pricing and appetite vary widely.