Warren County is undergoing property tax reassessment for the first since the late 1980s.

As the effort to reassess all parcels in Warren County continues, officials are already discussing how the data can stay updated.

“Once this reassessment is done, we want to maintain that going forward,” Chief Assessor Brian Bull told the Warren County Council of Governments on Wednesday.

He said one of the challenges is that information from the municipal level isn’t flowing to the county assessment office.

“If someone builds something in your municipality, we don’t know about it,” Bull said. “It goes untaxed.”

He asked local elected leaders to provide permits to the county on a monthly or bi-monthly basis “so we have it in hand when it comes time to do your municipality (and we) know what properties we need to be looking at.”

Bull said they also need to know when someone tears down a structure so that property owners aren’t assessed taxes for structures no longer standing.

He told the COG that anything under 300 square feet is being listed on a property but doesn’t add value.

He also told the elected leaders that assessment staff “peruse the area as they’re working” for potential additions or demolitions but the county does not “have somebody that’s all they do (is) drive around looking for stuff.

“You as municipal leaders pretty much know what’s going on in your municipality,” he added.