I don't know if it does or not, but I too would be thrilled to find a house with a chicken coop or barn already there! We will be spending the summer building a chicken tractor, a new coop and a new goat house and quite frankly, I don't care if the neighbors like it or not. I listen to their dogs barking all night long and running lose in the day and biting people, so they can put up with a coop and a few chickens and goats. Besides, I have nothing but repos around me anyway and people are buying them up for half of what we paid for our house, so the value of our property is already shot due to that. I feel that my new animal houses will be an asset to our property and not a detriment. They will be painted and landscaped around so I see no reason they would lower the value. In fact, many of my neighbors come to visit the goats each day and love hearing the chickens. Several have told me they wished I would keep a rooster as they would love to hear one crowing each morning. Now that is hilarious.
The house we sold in 2004 had a nice coop with an attached run that we built. It was adorable, yellow and white with a window box and double paned windows. The run was fully enclosed with white lattice and the whole perimeter was secured with very large river rocks. We never had a predator get in. We kept it clean and there was no smell. We had the opportunity to look at it a few months ago as the buyers moved out and will be renting the house out. They used the coop for a dog pen and it was a wreck. It stunk, there were piles of poo everywhere and it was just plain gross. So as far as I am concerned a well maintained coop is an asset.