Board sustains corrected assessment for 416 Blue Mound Road after assessor cites calculation error

The City of Waukesha Board of Review sustained the assessor’s corrected valuation for 416 Blue Mound Road, setting the total assessment at $2,386,400 with land at $363,200 and improvements at $2,023,200.

Property owner Janelle Jourdan Clum told the board the spike in the tax bill had significant personal consequences: "When I first opened up that tax bill in December, I just about freaked out... it ruined my whole Christmas," she said. John Nagel, accountant for the tenant and the appellant’s agent, described the parties’ concern that the corrected valuation still represented a substantial increase and said the appellant relied on a comparable sale (a veterinary clinic sale) and marketability evidence to argue for a lower figure.

The assessor explained that an initial calculation error—an extra line added in the database that overstated square footage—was identified and corrected, producing a corrected value of $2,386,400. The assessor presented multiple comparable sales of office/warehouse and contractor-shop properties from the analysis years and described adjustments for size, condition and time. The assessor also noted statutory requirements on using income data and the timing for submitting income-and-expense information.

The board deliberated on the sworn testimony and the assessor’s comparables and concluded the assessor presented satisfactory, adjusted-comparable evidence; the board therefore sustained the assessor’s corrected valuation. The clerk will transmit correction data to the clerk/treasurer for any tax recalculations and refunds per the statutory process.