A patio for residential use, typically concrete, brick, pavers or other masonry material construction at existing grade level, cannot be located in any of the required setbacks. The required setbacks are based on the zoning of the property, ranging from; a side yard setback anywhere between 0 feet to 10 feet, a rear yard setback between 20 feet and 30 feet, and a maximum total lot coverage (how much of the lot can be covered in structures or paving) of 50% to 80%. If a patio is 100 square feet or less, a zoning certificate is not required. The fee for a Zoning Certificate (PDF) is $25. However, if any of the work is proposed to be in the City Right-of-Way, a permit is also required through the Public Works Department.