Even if you do not receive a tax notice, it is your responsibility to be sure that the property taxes have been paid.  You may contact the appropriate tax collector (Parish or City) to determine the amount of property taxes owed and whether or not the taxes have been paid. 

To arrive at the "fair market value" for your property, the assessor must know what "willing sellers" and "willing buyers" are doing in the marketplace.  The assessor must also keep current on cost of construction in the area and any changes in zoning, financing, and economic conditions which may affect property values.  The assessor may use any of the three nationally recognized approaches to value, those being cost, income, and market.  This data is then correlated into a final value estimate by the appraiser.  After your appraisal has been made, the appropriate percentage of value, or level of assessment, required by law is calculated as your "assessed value".