A permit is required for the erection, repair, alteration, improvement, and addition of or to any building within the City. Permits are not required for ordinary maintenance or repair, unless the alteration changes the exterior lines or limits of the building, changes the number of living units within the building, or relates to the sanitary condition, which requires a building permit regardless of the cost of the improvement. Replacement windows do not require a permit. We do require a permit to put siding on your house.