Some of the most common projects that require a building permit include constructing a new building, adding to an existing structure, renovations and demolitions. Additional projects that require a building permit include a swimming pool, deck, patio, fence, driveway, stoop and walkway, replacement HVAC, water heater and replacing a roof and/or siding. To find out if your construction or home improvement project requires a permit, click on this link or contact the Development Department at (847) 639-1100.