Property Tax Increase from ADU

[Brandon Ly]

Greetings Bigger Pockets Community!

I'm going to be constructing an ADU on my property soon and wanted to calculate the property tax increase I should expect from the new unit.

The ADU's valuation was calculated by the county at $231,800 so is this the number I use to estimate my increase in property taxes? The property is in Los Angeles county so I figure 1.1%*$231,800 = $2,549 increase in annual property tax.

Is my estimated calculation correct or is there something I'm missing? Thanks all!