Large livestock may only be kept on lots 20,000 square feet or greater that allow agricultural uses through Portland City Code Title 33 Zoning, or that have an approved conditional use.

1. A.  Maximum number.
   1. 1.  Two standard goats, standard sheep, miniature horses, or other similarly sized livestock are allowed on lots 20,000 square feet or greater. One additional animal is allowed for each 10,000 square feet greater than 20,000 square feet.
   2. 2.  One horse, cow, llama or similarly sized livestock is allowed on lots 20,000 square feet or greater. One additional animal is allowed for each 20,000 square feet greater than 20,000 square feet.
2. B.  Additional standard for large livestock. It is unlawful to picket any large livestock or allow them to roam, so that it may approach within 50 feet of any building used as a residence, or any commercial building in which foodstuff is prepared, kept or sold.