So we talk about a 15 x 20 m space. Cairina moschata can deliver eggs also and is relatively silent, for a such big bird. They are much happier with a pond, that will turn a mess if small sized in no time. A couple in a medium sized pond with filter could work. A big pond is much better of course. Ducks can be noisy when startled and are very talkative all day, but at least do not sing at night by default. Some races can deliver as many eggs as a chicken.
Female pheasants and quails are also quiet but males can be noisy. Maybe you should consider bunnies or pigeons?.
In any case if you plan to have birds you will need a good way to accurately dispose of the faeces, avoid flies etc. Can be as much annoying for your neighbourgh as the sound. Bantams at least are a little less problematic in that sense. Sound is not the only thing to consider here.