[Ord. No. 1511 §1, 2-20-2001]
This Section contains the district regulations of the "NU" Non-Urban
District. These regulations are supplemented and qualified by additional
general regulations appearing elsewhere in this Chapter which are
incorporated as part of this Section by reference. The "NU" Non-Urban
District of St. Louis County encompasses areas within which rough
natural topography, geological conditions, or location in relation
to urbanized areas creates practical difficulties in providing and
maintaining public roads, and public or private utility services and
facilities. The "NU" Non-Urban District also encompasses areas where
specific potential development patterns have not been identified or
where significant non-urban uses have been established.
[Ord. No. 1511 §1, 2-20-2001]
The following land uses and developments are permitted in this
district:
(1)
Churches.
(2)
Commercial vegetable and flower gardening, as well as plant nurseries
and greenhouses, but not including any structure used as a salesroom.
(3)
Dairy farming.
(4)
Day care homes licensed under Chapter 819 of Title VIII SLCRO 1974,
as amended.
(5)
Dwelling, single-family.
(6)
Dwelling, single-family earth sheltered.
(7)
Farming, including the cultivation and sale of any plant crops and
domestic animals.
(8)
Forests, wildlife reservations, as well as conservation projects.
(9)
Golf courses, including practice driving tees on the same premises.
Miniature golf courses and independent practice driving tees are excluded.
(10)
Home occupations.
(11)
Hunting and fishing as well as propagation of wildlife of any
kind.
(12)
Libraries, public or private not-for-profit.
(13)
Local public utility facilities sixty (60) feet or less in height
or one hundred thousand (100,000) cubic feet in volume or less, provided
that any installation, other than poles and equipment attached to
the poles, shall be:
(a)
Adequately screened with landscaping, fencing, or walls, or
any combination thereof, or
(b)
Placed underground, or
(c)
Enclosed in a structure in such a manner so as to blend with
and complement the character of the surrounding area.
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All plans for screening these facilities shall be submitted
to the Department of Planning for review. No building permit or installation
permit shall be issued until these plans have been approved by the
Department of Planning.
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(14)
Mausoleums or crematoriums in an existing cemetery, any other
provision of the law notwithstanding, but no such structure shall
be situated closer than one hundred (100) feet to any cemetery property
line.
(15)
Parks, parkways, and playgrounds, public or private not-for-profit.
(16)
Schools, public or private kindergarten, secondary, and collegiate.
(17)
Schools, public or private elementary, on a tract of land of
at least five (5) acres.
(18)
Telecommunication towers of forty (40) feet or less in height
and co-used telecommunication towers or disguised support structures
of sixty (60) feet or less in height.
[Ord. No. 1511 §1, 2-20-2001]
The following land uses and developments may be permitted under
conditions and requirements specified in Section 1003.181 Conditional
Use Permits of the St. Louis County zoning ordinance:
(1)
Administrative offices and educational facilities for religious purposes.
(2)
Advertising signs, where not in conflict with State and Federal regulations.
(3)
Airports and landing strips.
(4)
Blacksmiths.
(5)
Cemeteries, including mortuaries operated in conjunction with the
cemetery.
(6)
Child care centers, nursery schools, and day nurseries.
(7)
Clubs, private not-for-profit.
(8)
Correctional institutions.
(9)
Extraction of raw materials from the earth and the processing of
these raw materials, but not including the manufacturing of a product.
(10)
Facilities for the composting of yard wastes.
(11)
Fairgrounds.
(12)
Feed or grain storage, commercial or cooperative.
(13)
Foster homes for handicapped children.
(14)
Golf courses which are illuminated and practice driving tees.
(15)
Group homes for the developmentally disabled, to be occupied
by no more than nine (9) individuals (excluding supervisory personnel)
not related by blood or marriage to the operator or operators of the
facility.
(16)
Group homes for the elderly.
(17)
Hospitals and hospices.
(18)
House-trailer park or camp and associated community facilities.
(19)
Local public utility facilities over sixty (60) feet in height
or over one hundred thousand (100,000) cubic feet in volume.
(20)
Logging operations, sawmills, and mill storage of lumber, but
not including any fabrication of timber structures.
(21)
Mulching plants for trees, wood, or wood waste, but not including
any assembly or manufacture of a product.
(22)
Nursing homes, but not including self-care units.
(23)
Police and fire stations.
(24)
Public utility facilities.
(25)
Recreational camps and camping facilities.
(26)
Recreational land uses, commercial or not-for-profit.
(27)
Retreats owned and operated by religious, educational, or other
not-for-profit establishments and religious convents.
(28)
Riding stables, kennels, and veterinary clinics.
(29)
Rifle ranges, skeet shooting clubs, and other activities featuring
the use of firearms when all parts of these activities are located
at least one hundred (100) feet from the boundaries of the property
involved.
(30)
Salesrooms, when established as an accessory use to commercial
gardens, plant nurseries, and greenhouses, for the sale of nursery
products and related items for use in preserving the life and health
of such products, hand tools, and plant containers. The preceding
items shall not include power-driven equipment, lawn and garden furniture
nor decorative accessories, fencing, nor bulk sale of sand, gravel,
mulch, railroad ties or similar materials. The salesroom may occupy
all or a portion of a building.
(31)
Sanitary landfills and incinerators.
(32)
Schools, public or private elementary, on a tract of land of
at least three (3) acres but less than five (5) acres.
(33)
Sewage treatment facilities, other than facilities permitted
as an accessory use.
(34)
Specialized private schools.
(35)
Stadiums and sports arenas.
(36)
Telecommunication towers up to two hundred (200) feet in height.
[Ord. No. 1511 §1, 2-20-2001]
Subject to compliance with the procedures of this Section, accessory
buildings, structures and uses are permitted in conjunction with a
permitted land use or development or (unless restricted by applicable
condition) a conditional land use or development when such accessory
building, structure or use in customarily found in conjunction with
the primary use, is a reasonably necessary incident to the primary
use, is clearly subordinate to the primary use, and serves only to
further the successful utilization of the primary use. Accessory uses
include the following:
(1)
Devices for the generation of energy, such as solar panels, wind
generators, and similar devices.
(2)
Individual sewage treatment facilities serving an individual dwelling,
farm, or non-residential use, as approved by the appropriate regulatory
agency. The sewage treatment facilities shall not exceed five thousand
(5,000) gallons per day flow.
(3)
Private stables.
(4)
Signs (business, directional and information).
[Ord. No. 1511 §1, 2-20-2001]
All uses in the "NU" Non-Urban District shall operate in conformity
with the appropriate performance standards contained in Section 1003.163
Zoning Performance Standard Regulations of the St. Louis County zoning
ordinance.
[Ord. No. 1511 §1, 2-20-2001]
The total height of any structure shall not exceed that permitted
in Section 1003.161 Air Navigation Space Regulations of the St. Louis
County zoning ordinance.
[Ord. No. 1511 §1, 2-20-2001]
The minimum lot area and yard requirements for land uses and
developments in the "NU" Non-Urban District shall be as set out below:
(1)
Minimum Lot Area Requirements.
(a)
The following permitted and conditional land uses shall be situated
on tracts of land providing not less than the following areas:
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Use
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Minimum Area
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Advertising signs
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3 acres
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Administrative offices and educational facilities — religious
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4 acres
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Child care center
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3 acres
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Church
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3 acres
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Dwelling, single-family
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3 acres
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Dwelling, single-family, earth sheltered
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3 acres
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Group homes for the developmentally disabled
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3 acres
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Group homes for the elderly
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3 acres
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House-trailer parks or camps, including community center
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20 acres
with an average of at least 4000 sq. ft. per unit
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Local public utility facilities and telecommunication towers
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10,000 sq. ft.
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Mechanical sewage treatment facility
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3 acres
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Schools
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nursery or day nursery
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1 acre
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kindergarten (separate)
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3 acres
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elementary (permitted use)
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5 acres
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elementary (conditional use)
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3 acres
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junior high
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10 acres
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senior high
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20 acres
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collegiate
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10 acres
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(b)
Any lot or tract of record on the effective date of this Article
(February 20, 2001), which contains less than three (3) acres, may
be used as a site for one (1) single-family dwelling together with
customary accessory structures and uses.
(c)
Specialized private schools shall be located on a tract of land containing one (1) acre for each fifteen (15) pupils, but in no case less than five (5) acres, nor more than that required by the school land area requirements, as listed in Section 23-29.6(1)(a).
(d)
Mechanical sewage treatment facilities may be located on tracts
of land less than three (3) acres in area where the facility is located
on platted common land within a subdivision. The minimum lot area,
however, shall in no case be less than ten thousand (10,000) square
feet.
(e)
Police and fire stations as approved by the Planning Commission
via a conditional use permit may be established on tracts of less
than five (5) acres where the related parking needs, outdoor facilities,
and size of buildings are deemed consistent with the intensity of
land use in the neighborhood of these uses.
(f)
All other permitted or conditional land uses in this district
shall be situated or conducted on tracts of land at least five (5)
acres in area.
(2)
Creation Of New Lots. No new lots shall be created
of less than three (3) acres in area except for fire stations, Police
stations, nurseries or day nurseries, and local public utility facilities.
Lots of less than three (3) acres in area, created for the above uses,
shall not be used for any other use. In the event the permitted use
terminates, the lot shall be established as common ground for an adjacent
development or combined with an adjacent parcel or parcels by means
of a boundary adjustment. Prior to the approval of a subdivision record
plat creating a lot of less than three (3) acres, a deed or other
legal instrument must be approved by the County Counselor and recorded
with the St. Louis County Recorder of Deeds, which guarantees the
required transfer of the property in the event the permitted use is
terminated.
(4)
Specific Yard Requirements And Exceptions.
(a)
Notwithstanding any other provisions of this Chapter, on corner
lots, no structure or plant material exceeding three (3) feet in height
above the elevation of the street pavement is allowed within the sight
distance triangle.
(b)
Boundary walls or fences, six (6) feet or less in height, are
allowed within the minimum yard requirements.
(c)
Permitted information signs, six (6) feet or less in height,
are allowed within the minimum front yard setback.
(d)
Permitted directional signs, three (3) feet or less in height,
are allowed within the minimum front yard setback or sight distance
triangle.
(e)
A permitted freestanding business sign may be located no closer
than twenty-five (25) feet from any roadway right-of-way line.
(f)
Light standards for street lighting or at points of ingress
and egress, but not including parking lot lighting, are allowed within
the minimum front yard setback when approved by the Department of
Planning. Light standards for parking lot lighting are allowed no
closer than ten (10) feet of any side or rear yard line which adjoins
property in the "NU" Non-Urban, "PS" Park and Scenic or any "R" Residence
District.
(g)
In the event that greater that fifty percent (50%) of the existing
dwelling structures on the same side of a street and in both directions
from a lot, for a distance of five hundred (500) feet or to the nearest
intersecting street, whichever distance is less, have a variation
in front yard setbacks of no more than ten (10) feet, the required
front yard for that lot shall be the average setback of those structures.
However, in no case shall any building be located closer than fifteen
(15) feet from any roadway right-of-way line, nor shall a setback
of greater than seventy-five (75) feet be required.
(h)
If a lot of record existing on the effective date of this Ordinance
(February 20, 2001) has a width of one hundred (100) feet or less,
the side yard on each side of any structure erected on such lot may
be reduced to a width of not less than ten percent (10%) of the width
of the lot, but in no instances shall such yard be less than five
(5) feet in width.
(i)
Any non-residential structure, other than a public utility tower
authorized by a conditional use permit, which exceeds thirty (30)
feet in height shall be set back from all property lines at least
one (1) additional foot for every foot of height above thirty (30)
feet.
(j)
No private stable shall be allowed within one hundred (100)
feet of any property line. Affiliated pasture areas shall be fenced.
(k)
Notwithstanding any other provisions of this Chapter, telecommunication
towers shall not be closer to a property line of "PS" Park and Scenic
District, "NU" Non-Urban District or "R" Residence District property
than a distance equivalent to the height of the proposed telecommunication
tower. A greater setback may be required by the conditions of a conditional
use permit.
(5)
Maximum Height And Minimum Yard Requirements For Nursing
Homes.
(a)
No building within a nursing home development shall exceed a
height of three (3) stories or forty-five (45) feet above the average
ground elevation at the perimeter of the building, whichever is less.
(b)
No building within a nursing home development shall be allowed
within a minimum of fifty (50) feet of any property line.
[Ord. No. 1511 §1, 2-20-2001]
Off-street parking and loading requirements and setbacks for
parking areas, loading spaces and internal drives are set forth in
Section 1003.165 Off-Street Parking and Loading Requirements of the
St. Louis County zoning ordinance.
[Ord. No. 1511 §1, 2-20-2001]
Sign regulations are set forth in Section 1003.168 Sign Regulations
of the St. Louis County zoning ordinance.
