For an apartment building courtyard, I’d choose trash cans that are enclosed first, not open-top. The best fit is usually a heavy-duty powder-coated steel or aluminum bin with a self-closing lid, a pedal or sensor opening, and a locking service door. That combination keeps rain out, reduces odors, and makes it harder for raccoons, rats, and stray cats to get into the waste.
Capacity matters, but bigger isn’t always better. Courtyards need bins large enough to handle daily household trash without overflowing, yet compact enough not to block walkways or make collection difficult. A pair of 60–120 litre bins for mixed waste and recycling often works better than one oversized bin, because residents can sort waste quickly and maintenance staff can move them.
For busy buildings, a dual-stream recycling station with clearly labeled openings is practical. Look for fire-resistant metal construction, rounded corners, smooth interior surfaces, and removable liners. These details make cleaning easier and reduce the chance of stains, pests, and smells. If the courtyard is exposed to wind, choose weighted bases or bolt-down feet so bins do not tip over.
Smart solar compacting bins can work in modern courtyards, but they need reliable servicing and higher budgets. In most residential buildings, a simpler enclosed bin with a lockable front door and a small ash/trash combo is more reliable. I’d also add a paved, washable pad, good lighting, and a clear sign for collection days. That setup keeps the courtyard cleaner and makes the bins last longer.