Yes, quiet urban planter boxes do exist, but the key is to choose them by construction rather than by a single product label. Wind creaks and rattles usually come from thin metal panels, loose trim, hollow bases, rivets that work loose, flapping plastic liners, or lightweight boxes that shift on a balcony or rooftop. A genuinely quiet planter is rigid, stable, and built with damped joints.
Good options include cast concrete or stone-composite planters, which are heavy and rigid and tend to vibrate very little in the wind. If your balcony can handle the weight, they are excellent. Fiberglass or composite planters with double-wall or foam-filled construction are also a smart choice because they resist rust and are less resonant than thin metal. Powder-coated aluminum or steel planters can be quiet too, but choose a welded frame, thicker panels, rubber washers, and gasketed or sealed joints. Avoid hollow, riveted metal boxes with loose decorative panels. Recycled HDPE planters can work well if the walls are thick and the drainage tray is secured; very thin hollow plastic can drum or rattle in strong wind.
The details matter more than the material name. Look for internal cross-bracing, closed or weighted bases, tight liners, clipped or screwed-down drainage trays, and no loose brackets, tags, or lightweight trellises. Rubber pads under the base help prevent movement and vibration. On windy balconies, anchor the planter according to local rules and add a windbreak if possible. Soil and plants can help dampen resonance, but they will not fix a poorly made box with loose parts.
Since your neighbor complains about everything, choose a quiet, well-built planter and then reduce avoidable noise: place it on a rubber mat, fill it with soil and plants, and check for rattles after installation. If your neighbor still complains, keep your receipts and product specs, stay calm, and document the conversation. A quiet urban planter box can remove a real source of wind noise, but it will not solve every neighborhood complaint. Clear communication and reasonable boundaries matter as much as the planter itself.