PARIS — The tax assessor estimated that a revaluation of town properties will not be completed until 2013, unless the job is contracted out.

John Brushwein, giving a presentation at Monday’s selectmen’s meeting, said he is working to visit individual properties to correct several errors in the assessment database. Brushwein said he is currently doing this process by himself.

He said the process could be completed within a year if an independent company is contracted. However, he estimated that such an action would cost $225,000.

In addition to the collection of information on properties, Brushwein said he would have to analyze market data and other costs, create assessment schedules, apply the schedules to the properties, send notices to all property owners experiencing a change in property values, and hold hearings for residents who request them.

Brushwein also reviewed issues with the assessments, echoing concerns he first raised before the selectmen in February. At that point, Brushwein said his predecessor, Kevin McGillicuddy, had left several problems with the town’s assessments when he resigned in 2007.

In that year, McGillicuddy completed a revaluation that raised the town’s value by one-third, or $83 million. He said the revaluation aimed to preserve state exemptions by bringing the town into compliance with a state-mandated sales ratio between assessed price and sales price. Several residents complained that the change significantly increased their property taxes.

Brushwein said the issues include high land assessments and low building assessments; the improper combination of some lots; and discrepancies between the hard copy records and computer data.

Brushwein also said that the tax rate is based on a comparison between the net budget and total assessed value of town properties, and that the formula would lead to an increase in the tax rate even if the overall assessed values decline. He said the net budget increased this year due to a decline in anticipated revenue.

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