Well, We have a chicken tractor that is right by my window, probably 3 ft away. It doesn't stink, I scrub it out about once a week. I'm building my realy coop about 20 foot from the house, so that I dont' hear their conversations, but can keep an eye on them.
I move my coop and chicken yard about every 3 months approx. I use FOOD GRADE Diatomaceous Earth (DE)in my coop in their run and where they like to dust bath. In their coop I sprinkle DE on the pine shavings. Also my roosts in my coop are over wire which allows the poop through and I sprinkle the DE over the poop too. The pine shavings are on the floor in the rest of the coop. Monthly I add some shavings and weekly I add DE. I clean my coop once a year. Once in awhile I throw some scratch on the shaving with the DE and let the chickens mix it up. They so a very good job. I have no problems with flies, stink and such. My pine shavings stay nice and dry easy to clean out. I put them in my compost pile. which every once in awhile I give a toss to keep it mixed up with the other stuff that goes in. sprinkle with water and let it cook. I grow so much produce that I give most of it away or the chickens get it. My soil is low in acid so I think the pine shavings and poop are good for my soil. I store my DE in 5-gal buckets with lids.
Ours is 50 feet from the house, totally insulated and enclosed (with 2 large windows) and no smell-- even IN the coop... I believe the deep layering with added D.E. and good venting is why...
Now the box of chicks in my daughters room is a whole other issue-- keeping it dry is a problem (They swing on the waterer and dump it daily) and THAT causes bad odors.... and has to be cleaned 4-5x a week... they are going to the coop tomorrow or Saturday-- then there will be only the 2 "special babies" in the house...much less mess/odor!