1. A-3: Land in this
District is primarily in holdings of at least 35 acres for dryland
or irrigated farming, pasturage, or other related food production
2. A-2: Land in this
District is for rural subdivisions of at least 10 acres in size
where adequate provisions are made for internal and external roads
and access, water and sewer facilities, for fire protection and
other emergency services, and for other public services and utilities.
Farming uses are permitted, including the cultivation of land and
the keeping of a limited amount of animals.
3. A-1: Exclusively a
rural single family dwelling District where the minimum lot area
for a homesite is dependent on the availability of public water and
sewer facilities, and other necessary utilities and services. Limited
farming uses are permitted including the cultivation of land and
the keeping of a limited amount of animals for individual homeowners
General Requirements -
1. Minimum frontage width
at building line - 150' with well and/or septic tanks; 100' with
public water and sewer facilities.
2. Minimum lot size for
a single family principal dwelling:
A-3: 35 acres
A-2: 10 acres
A-1: 2-1/2 acres with individual wells and septic tanks; 1 acre
with public water and individual septic tanks; 1 acre with individual
wells and public sewer; 1/2 acre with public water and sewer. In
addition, on previously existing tracts of land in A-3 and A-2,
that were created prior to July 1, 1972, construction of a single
family dwelling shall be allowed subject to the minimum requirements
of the A-1 Zone District and the Subdivision Regulations. For new
subdivisions with gross lot sizes greater than 2-1/2 acres, the
land up to the centerline in newly dedicated public rights-of-way
for local streets may be counted toward the total lot size requirement,
subject to a favorable recommendation of the Tri-County District
Health Department concerning specific lot configurations, topography,
soil conditions, and water table heights. The maximum amount of
land in a right-of-way which can be counted towards a lot shall
be 1/2 acre (minimum net lot size is 2 acres). Setback requirements
shall be determined by the right-of-way lines and no construction,
including septic systems, may take place in the right-of-way except
by approval of the Board of County Commissioners.
3. Minimum setback for
A-3 and A-2 - Front -
50'; Side - 20' one side, 10' other side. (50' from street on corner
lots); Rear - 20'.
A-1 - Front - 30' (50'
on state highway or arterial street); Side - 17' one side, 5' other
side (30' from street on corner lot if local street, 50' from street
on state highway or arterial street); Rear - 20'.
4. Minimum setback for
other detached buildings:
Front - 10' to rear of
front of dwelling or 100' whichever is lesser (attached garage -
same as dwelling setback). When within 6' of other dwellings, the
accessory building shall be constructed as an attached structure,
Side - 25, Side - 15' - Aircraft Hanger at an approved private airport.
Rear - 10'.
5. Minimum setback of
an agricultural building (other than garage) from on-site residence
6. Maximum height of
dwellings and garages - 25'; other agricultural buildings - 25'
if subdivided, 70' if unsubdivided.
7. Maximum total size
of all accessory buildings as defined in Section 2.201, unless the
accessory building is an aircraft hanger at an approved private
airport and is utilized as such. Maximum size for an aircraft hanger
shall be 4000 square feet.
A-3, A-2, A-1 (unsubdivided):
A-1, well and septic: 6% of lot area including dwelling
A-1, public water or sewer: 7.5% of lot area including dwelling
A-1, public water and sewer: 12.5% of lot area including dwelling
8. A maximum of one mobile
home of 1,200 square feet shall be permitted for each 40 acre parcel
where allowed as a use by right.
9. A maximum of one single-family
dwelling is permitted on each individual lot.
and Retaining Walls, Agricultural Districts:
1. All fences and walls
more than 42 inches in height require a building permit.
2. Any retaining wall
over 2 feet in height shall require preparation by a professional
engineer as a condition for a building permit, except where waived
by the Building Inspections Section.
3. Except in unsubdivided
agricultural areas, no external boundary electric fence shall be
allowed except by Special Use permit.
4. In subdivided agricultural
areas no fence of any type more than 42 inches in height shall be
permitted between the front setback line and a front property line.
5. Except as provided
in (4) above, the maximum height of any fence within an Agricultural
District is 96 inches, which may include 4 strands of barbed wire
forming the top 18 inches. Fencing consisting of only barbed wire