New Orleans property owners who wish to discuss the assessment on their property with the Assessor’s Office may do so during the next month.

The tax rolls will be open from 8:30 a.m. to 4 p.m. weekdays through Aug. 17, Orleans Parish Assessor Erroll Williams said.

Property owners may visit any of four locations: City Hall, 1300 Perdido St., fourth floor; Algiers Courthouse, 225 Morgan St., first floor; Lakeview Christian Center, 5885 Fleur de Lis Drive, second floor; and 5555 Bullard Ave., Suite 103.

The last two sites are temporary Assessor’s Office locations open only for the “open rolls” period through Aug. 17.

Visiting with Assessor’s Office personnel at one of the four locations is regarded as an “informal appeal.” Property owners may bypass this step and file a “formal appeal” with the Orleans Parish Board of Review by filing online at nolaassessor.com starting Wednesday.

The City Council acts as the parish’s Board of Review.

To file online at nolaassessor .com, click the e-file link in the left column on the home page, then click “Appeal of Taxable Valuation.”

This link will be operational from Wednesday through 4 p.m. Aug. 20.

“You do not dispute the property assessment because you think your taxes are too high. That is a discussion to take up with the taxing authorities,” Williams said. “You should see me because you think the value placed on your property is inaccurate due to estimations on its size, comparable sales or market values.”

To contest an assessment value, owners are advised to have their assessment letter and any documentation to support their claim, such as a recent appraisal, a builder’s contract, photos or insurance coverage of the property, Williams said.

No appointment is necessary; individuals will be assisted on a first-come, first-serve basis at all locations.