City of Fenton, MO
St. Louis County
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Table of Contents
Table of Contents

Section 460.010 General Requirements For Accessory Buildings, Structures And Accessory Uses.

[Ord. No. 3631 § 3, 10-27-2016[1]]
A. 
For the purpose of this Chapter, the term "accessory use" shall also include accessory buildings and structures. As set forth in the definitions, to be considered an accessory use, a use, building or structure must be incidental to, subordinate in size or purpose, and customary in conjunction with the principal building, structure or principal use and is located on the same lot as the principal building, structure or principal use.
B. 
Permitted accessory uses, include, but are not limited to, the following:
1. 
Detached private garages.
2. 
Detached carports.
3. 
Greenhouses (non-commercial).
4. 
Swimming pools (in-ground and above ground), including hot tubs and elevated pool decks.
5. 
Tennis, basketball, volleyball, and other similar sport courts.
6. 
Storage structures.
7. 
Private stables located in the "R-1" Zoning District.
8. 
Accessory uses related to a permitted farm use located in the "R-1" Zoning District.
9. 
Home occupations — See Section 460.030 below.
C. 
A permit is required for any accessory building or structure, except accessory uses that are:
1. 
Unattached to the ground and less than one hundred twenty (120) square feet in size; or
2. 
A home occupation.
Exemptions from the permit requirement shall not be deemed to grant authorization for any accessory use to be constructed and maintained in violation of this Chapter, the Zoning Code or any other laws or ordinances of the City.
D. 
All accessory uses shall conform to the requirements of this Chapter as necessary to ensure the public's safety and general welfare.
E. 
All accessory uses shall be adequately attached to the ground and shall be erected in a secure and wind-resistant manner.
F. 
Accessory buildings or structures shall not be used for dwelling purposes.
G. 
Storage structures may be erected upon a lot in a Residential District prior to the construction of the principal structure provided that said storage structure does not encroach the required front setback of the Zoning District and has a minimum setback of five (5) feet from all other lot lines.
H. 
Unless otherwise provided herein, the height of accessory uses shall not exceed the height of the principal building.
I. 
No more than one (1) storage structure shall be permitted on a lot in the "R-2," "R-3" and "R-4" Districts.
J. 
Detached, private garages shall be not more than one (1) story and not more than seventeen (17) feet in height measured from the grade to the peak of the roof. Exterior walls shall be limited to a height of not more than ten (10) feet. The exterior wall height shall be determined by measuring from the grade level to the bottom of a flat roof or to the bottom of the rafters of a pitched roof.
K. 
Storage structures shall be not more than twelve (12) feet in height measured from the grade to the peak of the roof. Exterior walls shall be limited to a height of not more than eight (8) feet. The exterior wall height shall be determined by measuring from the grade level to the bottom of a flat roof or to the bottom of the rafters of a pitched roof.
L. 
No accessory use, except detached private garages, detached carports, sport courts and swimming pools, shall be larger than ten percent (10%) of the rear yard of the lot. In no event shall the total square footage of all accessory uses on a lot exceed thirty percent (30%) of the total rear yard area.
M. 
Except as otherwise provided within this Title IV or in the following circumstances, accessory uses may only be located within the principal building or within the rear yard of any lot and have a minimum setback at least five (5) feet from any adjacent lot line.
1. 
Temporary roadside stands offering for sale farm products produced on a lot within a Residential District may be located within the front yard.
2. 
Temporary lemonade stands or similar temporary stands operated by minors on a lot within a Residential District may be located within the front yard.
3. 
Retaining walls may be located in any yard of the lot in which it is constructed.
4. 
Accessory uses located in a rear yard of a through lot in a Residential District shall not encroach the required setbacks for the Zoning District in which it is located.
N. 
Exceptions. Notwithstanding the regulations of this Chapter, the following are regulated elsewhere in this Title IV.
1. 
Fencing — see Chapter 462.
2. 
Driveways — see Chapter 495.
3. 
Off-Street Parking and Loading — see Chapter 496.
4. 
Outdoor Displays, Sales and Storage of Merchandise — See Chapter 461.
5. 
Signs — see Chapter 485.
6. 
Solar Energy Systems — See Chapter 464.
7. 
Other accessory uses not specifically regulated shall comply with the use regulations requirements of the applicable Zoning District in which they are located.
[1]
Editor's Note: Former Chapter 460, Accessory Buildings, Structures And Uses, containing Sections 460.010460.020, which derived from Ord. No. 3268 § 1, 6-28-2012, was repealed 10-27-2016 by § 3 of Ord. No. 3631.

Section 460.020 Additional Requirements For Non-Residential Use And Multiple-Family Dwelling Accessory Structures, Buildings And Accessory Uses.

[Ord. No. 3631 § 3, 10-27-2016]
A. 
Any accessory use larger than one hundred (100) square feet shall comply with all requirements of exterior building materials of the Zoning District and shall be consistent with the principal building.
B. 
Accessory uses two hundred (200) square feet or larger associated with a non-residential use requires site plan review (See Chapter 447).

Section 460.030 Additional Requirements For Home Occupations.

[Ord. No. 3631 § 3, 10-27-2016]
A. 
Home occupations are allowed as an accessory use, provided that the home occupation meets the definition provided in Section 400.030(B) of this Code and that:
1. 
No person not a resident on the premises is employed.
2. 
No stock-in-trade or commodities shall be displayed on the premises.
3. 
No internal or external alterations or special construction of the premises is involved.
4. 
No equipment or materials shall be used which creates offensive noise, vibrations, sound, smoke, dust, odors, heat, glare, x-ray or electrical disturbance to radio or television instruments.
5. 
No generation of unreasonable volumes of vehicular or pedestrian traffic or parking demand is created nor shall the traffic create a nuisance nor block or interfere with the regular flow of traffic. Additionally, no commercial vehicle shall be used in connection with the home occupation for delivery of goods to or from the premises, nor parked on the property. This provision does not preclude the delivery of mail or packages by the Postal Service or by private or public shipping and courier services. Home occupations shall not generate more than an average of one (1) truck delivery per day.
6. 
Equipment or materials used in the home occupation may not be stored outdoors.
B. 
Within the above requirements of Subsection (A), a home occupation, includes, but is not limited to, the following: Art studio; babysitting limited to four (4) children at one (1) time; dressmaking; millinery; office of a physician or dentist for consultation or emergency treatment, but not for general professional practice; professional office of a real estate agent, insurance agent or similar occupation; and teaching limited to not more than four (4) pupils at one (1) time. A home occupation shall not be interpreted to include barbershops, beauty shops, auto repairing, antique shops, sign painting, restaurants, electrical appliance shops or any light manufacturing or assembling operations.