Permitted uses in the A-1-20 zone are:
Apiaries, provided that no hives or boxes housing bees shall be kept closer than three hundred feet (300') from any dwelling other than that occupied by the owner of the apiary.
Farms or ranches for the grazing, breeding or raising of not more than two (2) horses, cattle, goats or sheep per acre. Except for the keeping of up to three (3) horses, as provided for in sections 18.44.020 through 18.44.050 of this title, no animal(s) shall be housed or corralled closer than five hundred feet (500') from any existing residence in the R-1, R-1-D, R-2, R-2-2000 or R-3 zone, or one hundred feet (100') from any property line.
Orchards, groves, nurseries, the raising of field crops, tree crops, berry crops, bush crops, truck gardening and commercial flower growing.
Single-family residences; provided, however, that there shall be not more than two (2) dwellings on each parcel of twenty (20) acres or more. Where parcels of land are already subdivided into parcels less than twenty (20) acres in area, there shall be permitted one dwelling for each lot, provided the lot contains dimensions and an area equivalent to the closest single-family residential zone. (Ord. 2286 § 1, 1995)