Hi there, when I last visited the North Plainfield municipal building, the entry was around the back - I've gone through this a few times in North Plainfield, and you will complete the application, pay the fee and wait a moment while they check to be sure taxes are paid. Once that is done, they will confirm an appointment time which will be a 3 hour or so window - someone needs to be home to allow the inspector in the house. The inspector will check the functionality and placement of fire extinguisher, smoke detectors and carbon monoxide detectors. You will get detailed information on requirements when you apply.
They may well also check the house to be sure it is what they believe it to be - ie, no one living in a basement that is not suitable as living quarters - that sort of thing.
Be sure to TEST your smoke and fire detectors before the inspection - if you fail, then you are back to square one and will have a delay and the additional expense of applying again and scheduling another appointment. Sometimes towns will assess a premium if you wait too close to closing, so get on top of it.
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