When Do You Require a Building Permit?
Building permits must be obtained from the Montville Construction Department before making any of the following changes to a building:
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Replacing a roof
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Installing new siding
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Adding a bedroom or bathroom
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Adding an addition
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Interior alterations
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Constructing a deck
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Enclosing a porch
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Installing a dishwasher
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Replacing an electric stove with a gas stove
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Finishing a basement
