Yes, it can be used—but you need to be a little thoughtful about it. Artificial turf is tough, but it is still a plastic surface, so the main risks are concentrated weight, heat, friction, and moisture trapped underneath furniture. In an urban setting, where balconies, rooftops, and courtyards often have artificial grass, outdoor furniture can work well if you choose the right pieces and use a few simple protections.
The biggest issue is usually point load. Thin metal legs, small feet, or heavy planters can press into the turf and leave dents or flatten the fibers over time. Use wide, smooth furniture feet, protective pads, or small coasters under legs. Avoid dragging chairs or tables across the surface, because that can pull or melt the fibers. Lift and move furniture instead, especially heavier pieces.
Heat is another thing to watch. Dark metal legs can get very hot in direct sun and may scorch or distort artificial turf. If your furniture stays outside all day, choose lighter colors, use pads, or move pieces during peak heat. Also avoid placing hot barbecue equipment or fire pits directly on the turf.
Finally, keep the area dry and clean. Furniture that traps moisture can encourage mold, rust, or odors, so choose breathable materials and check underneath after rain. Rotate lightweight furniture occasionally so the turf does not stay compressed in the same spot. With pads, careful lifting, and some attention to heat and weight, urban outdoor furniture can sit on artificial turf without causing serious damage.