Naugatuck Borough Administrative & Executive Departments - Asses 229 Church St, Naugatuck, CT06770 The Assessor's Office, located on the second floor of Town Hall, is responsible for general revaluation of real property…More in Naugatuck. As required by the state, the town conducts a full physical revaluation every 12 years, with four-year statistical revaluations in between. Those revaluations result in the Grand List, a measurement of the combined value of all properties in Naugatuck. Each year, a board of assessment appeals allows residents to appeal their assessments. The Assessor's Office also maintains records on property ownership, zoning classifications, lot maps, gross and net valuation and personal exemptions.