We were backyard chicken owners and are now farmsteaders with no restrictions.
When in our back yard we were allowed 4, had 5 for a while, and had a neighbor who would have been happy to have us get 8 and call 4 of them hers. We kept them as pets-with-benefits and our oldest was 8 when she died. When she was the last alive we did get three new pullets to keep her company, but we already knew we would be moving so promised not to get so attached that we couldn't give them away when we moved, which we did. Some years we had more eggs than we could eat, and other years/seasons we had to buy eggs.
Now we have 24 birds and ended up with 12 roos and 12 pullets. We have made the transition to "farmers" and our chickens have shifted from "pets" to "livestock." We still enjoy them but don't name them. (Well, OK, except for Eaglet!) They are 5 months old, and we've harvested our first 3 roos (not easy, but doable, and I don't think we will be buying chicken meat again). We are letting ourselves get closer to the pullets, so when we eventually harvest them it will be harder. We plan to breed, but do not plan to keep roos with the pullets, so we can keep the eggs unfertilized. We will keep 3 roos for breeding, in a small bachelor's coop. We will be building a bigger coop for the layers, and will use our 12-bird coop for breeding.
Right now we have 4 breeds. We may eventually pick a favorite and go with that for breeding. In the meantime it will be complicated!
We do hope to sell the eggs, but so far our guesses say the cost of the feed/grit/shell/straw/carton will come out to something like $4-$5 per dozen eggs, and I am not sure our little rural farmers' market will let us recoup our costs! (I don't expect to recoup our infrastructure costs, since we can sell those or add it to our property value, and I don't expect to recoup our labor costs -- just consumables). If we can't cover our consumables there is no point in having that many chickens -- unless maybe we have plenty of other profitable stuff for market and the eggs brings folks to our table. We are basing our estimates on minimal data; once we've had them longer and they are in laying mode and we aren't feeding roos as well, we'll have a better idea of what the hens' consumable costs are, and how many eggs we will really get per hen. We live in high desert so we don't have lots of forage for them but are sprouting grains for more greenery, and we ferment 1/2 of their feed. Our chickens eat really well! We are not interested on skimping on that. If it's a losing proposition we will just cut down on numbers.
We do also plan to make things with the feathers and sell them as market crafts; that might help the equation a bit (if we also don't pay ourselves any labor for that!) If we get the appropriate permits we could also bake cookies, etc. with the eggs and have some value-added products for market.
Right now with 12 pullets (not all started) we are getting 6-7 eggs a day so far. Too much to eat, not enough to approach our local markets (and still too small as well), so we are in giveaway mode.
We'll see how it goes!