What a Los Angeles assessment actually is

Anchored to the last sale, capped at about two per cent a year, and reset the day the deed records. Why a seller's bill says nothing about a buyer's.

What the number is

Under Proposition 13 a parcel's assessed value is set at its price the last time it changed hands and then rises by at most about two per cent a year. It is not what the building is worth; it is a staircase from the last sale. The report shows the roll years side by side so you can see the staircase, and where it breaks.

What a break in the staircase means

When the value jumps between two roll years, the parcel sold and the county reset it to the price. When the land value jumps and the improvement value falls at the same time, the county has priced the building as something on its way out — a teardown. That pattern, eleven months before a demolition permit, is what the record of one South Los Angeles parcel showed in 2024.

Why a seller's bill says nothing about a buyer's

A building held twenty years carries a tax bill from a twenty-year-old price. The day you buy it the county resets the base to what you paid, and the bill is yours from there. The number on the seller's statement is evidence about the seller's tenure, not about your cost.

The homeowners' exemption — $7,000 off the assessed value — appears on the roll only where the owner claimed it, and its absence on a house is one of the few things the roll says about occupancy without saying anything about a person. The report reports the flag, never the owner.

Counts run 4 September 2026.