That seems like a problem of going to giant scales. Here in Germany the norm for condos or apartments is 2-5 stories with 1-6 apartments per story. That gives you 2-30 units per building, and at that scale a couple of weekly emptied trash bins on the ground floor or in the parking garage do their job.

This is also a scale where construction and maintenance is straightforward, and where the building makes sense in a walkable neighborhood (as opposed to taking 5 minutes to even leave the buildings).