Usually when you pull a permit from the building department (building, plumbing, electrical,etc.), there is a final inspection that takes place. After that final inspection takes place, the papers are sent over to the tax assessor's office. He will use his discretion to see if he needs to visit the home and reassess the taxes on the property. When you are doing strictly cosmetic work such as painting, carpet, flooring, etc, you usually don't need to pull a permit (most towns). Tiling is also a form of cosmetic work and should not need a permit. If you are replacing sheetrock, etc. you may need a permit. Check with the local building office. You don't need to tell them where you live. They should tell you what the code is for Boonton. Let me know how you make out.
By the way, when you need the comps to sell, feel free to call me. I'm just down the street. My website is http://www.TJSellsHomes.com