(A) A building eligibility may be used within a farmstead provided:
(1) The building eligibility exists on property contiguous to and under the same ownership as the farmstead.
(2) There will be no more than two dwellings within the farmstead.
(3) The farmstead is not in the 100-year flood plain as identified on Flood Insurance Administration maps.
(4) The residential structure may be a single-family dwelling, manufactured home, or mobile home.
(B) Plant nursery or tree farm, subject to:
(1) No retail sales allowed on the premises.
(2) No structures exceeding 500 square feet.
(C) Electric substations, subject to:
(1) An opaque screen six feet in height must be erected on the side and rear lot lines and on the front yard setback line.
(2) The required side yard shall be 25 feet.
(D) Antenna support structure, subject to:
(1) Stealth design approved by the County Planning Director.
(E) A single-family dwelling located on a lot of record in accordance with the following:
(1) A lot of record consisting of less than 80 acres and containing no other dwellings shall have one eligible building site.
(2) The building site is not in the 100-year flood plain as identified on the Flood Insurance Rate Map.
(3) A lot of record consisting of 80 acres or more shall qualify for building eligibility as follows:
(a) The acreage of the lot of record shall be divided by 40 acres. The resulting whole number minus the number of existing dwellings shall represent building eligibility.
(b) If there is more than one building eligibility, each additional building site shall be required to obtain a conditional use.
(c) Each building site shall consist of a minimum of one acre.
(4) Approval has been granted by the appropriate governing entity for access onto a public road.
(5) Any parcel conveyed from a lot of record must be a minimum of one acre. The remaining portions of the lot shall be retained as agricultural land or in its present use.