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St. Charles County, MO
 
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Table of Contents
Table of Contents
[Ord. No. 99-99 §1, 7-12-1999]
The purpose and intent of the High Technology Corridor District (HTCD) is to provide a controlled and protected environment for the orderly growth and development of high technology businesses and industries within a park-like setting. This district also may allow, as conditional uses, other selected activities and facilities which provide services to or complement the permitted uses. All uses within the "HTCD" must conform to the Regulations and Performance Standards described within this district. The "HTCD" regulations apply to both individual lots and larger developments with multiple lots. However, whenever possible, the development of "HTCD" parks is encouraged for those that offer the opportunity to provide a planned office/research/ technology environment with common amenities, infrastructure, and management.
[Ord. No. 99-99 §1, 7-12-1999]
A. 
The following activities are permitted, subject to the regulations and standards set forth herein:
1. 
Administrative, headquarter, or processing offices for any of the following permissive uses.
2. 
Computer programming and other software services.
3. 
Educational facilities.
4. 
Engineering, architectural, urban planning, and design services.
5. 
Federal, State, County, City, or public utility owned and operated buildings and uses.
6. 
Manufacture of scientific, precision, and research instruments.
7. 
Offices for medical and telecommunications organizations.
8. 
Offices serving educational, governmental, scientific, research and development, manufacturing, assembly, and professional organizations.
9. 
Research and testing laboratories.
10. 
Any proposed use not listed above shall be reviewed by the Planning and Zoning Commission for determination as to compatibility with other uses in the district, and the Commission shall forward a recommendation to the Governing Body for a final determination and approval.
[Ord. No. 99-99 §1, 7-12-1999]
A. 
The following activities which support, or are an adjunct to, the permitted uses may, at the discretion of the Planning and Zoning Commission, be allowed, subject to the regulations and standards set forth herein and any other conditions deemed necessary to ensure compatibility with adjacent and surrounding uses. Some of the conditional uses listed in this Section may be appropriate within the context of an "HTCD" park:
1. 
Banks, savings and loans, and credit unions.
2. 
Child care facilities.
3. 
Conference and training facilities.
4. 
Hotels, motels, and extended-stay rental lodging facilities.
5. 
Light manufacturing and assembly facilities.
6. 
Recreational facilities such as golf courses, tennis courts, fitness centers, and indoor facilities.
7. 
Restaurants.
8. 
Retail and personal service establishments.
[Ord. No. 99-99 §1, 7-12-1999]
A. 
Accessory uses shall be complementary and subordinate to a principal use which is permitted within the zoning district. Permitted accessory uses in this zoning district shall include the following uses and structures:
1. 
Buildings for storage of documents, records, testing and research equipment, experimental models, and other personal property related to the principal use.
2. 
Bus shelters.
3. 
Clinics, cafeterias, lounges, and recreational areas for employees.
4. 
Conference or training facilities accessory to any permitted use.
5. 
Receiving and transmitting antennas and communication towers that are accessory to a principal use.
6. 
Sign structures which are used to advertise, promote, or identify commercial activity that is on the same premises as the sign.
[Ord. No. 99-99 §1, 7-12-1999]
A. 
The following regulations shall apply in all High Technology Corridor Districts (HTCD):
1. 
Administrative requirements.
a. 
The applicant requesting "HTCD" zoning, or development within an existing "HTCD", must submit to the Planning and Zoning Commission prior to any development taking place on the site a preliminary, site development plan and color rendering of building elevations. The plan shall depict: proposed uses for all lots; access and traffic circulation; parking and loading areas; a landscape plan indicating the selection of tree and shrub species for the park and/or individual lots as they are developed; the design of common open space areas; location and design of signs; typical building elevations; and additional items set forth herein.
b. 
The applicant must, simultaneously, file a preliminary subdivision plat for the tract and follow the entire platting process as indicated in Chapter 410 (the preliminary plat can be reviewed concurrently with the rezoning if the site is not already zoned "HTCD").
c. 
The applicant shall include with the plat application covenants and restrictions for the development, if applicable.
d. 
The applicant shall describe within the covenants and restrictions the organization and operation of the governing board that is set up to enforce said covenants. The covenants shall also address the integration of individual site developments with the overall site plan.
2. 
Design requirements.
a. 
Design unity. Development within an "HTCD" should demonstrate a logical layout and pattern of streets and open space, a well-conceived landscape plan, and design unity of street furniture and signage.
b. 
The development should integrate a common open space system and stormwater drainage system: the common open space system shall include recreational areas; environmental reserves protected from development or retained for their scenic beauty; a storm drainage system; and open space around any centralized management, service, or administrative center. The storm drainage system includes conduits, swales, streams, wetlands, detention basins, and surcharge retention ponds sufficient to contain storm drainage on the tract and to avoid localized flooding on individual lots or other abutting and nearby parcels outside the tract.
c. 
The development should demonstrate a site layout and design that integrates individual lots within the overall development context.
3. 
Site area. There is no minimum lot area for "HTCD" developments. All developments are subject to site development and subdivision plat review and must demonstrate the development site is sufficient to meet all development standards of the "HTCD" District.
4. 
Lot width. The minimum lot width shall be one hundred (100) feet at the front of the building line, except that lots of five (5) acres or greater shall have a minimum width of two hundred (200) feet at the front of the building line.
5. 
Lot coverage. The maximum lot coverage shall not exceed seventy percent (70%). This represents that portion of the site which is covered by impermeable surfaces, such as buildings or paving for access, circulation, loading, and parking.
6. 
Yard requirement.
a. 
Front yard. All buildings must be set back a minimum of thirty (30) feet from any public right-of-way. All required front yards must be kept clear of parking, loading areas, accessory uses, and buildings.
b. 
Side yard. All buildings must be at least twenty (20) feet from the side property line of any adjacent lot, except in the case of a corner lot, where the side yard shall be thirty (30) feet.
c. 
Rear yard. All buildings must be at least thirty (30) feet from the rear property line.
7. 
Height requirements. Except as otherwise provided in this Chapter, no building or structure shall exceed sixty (60) feet.
8. 
Landscaping and screening.
a. 
All side and rear yards shall maintain a minimum of a fifteen (15) foot landscape strip adjacent to the property line. A minimum of a one and one-half (1½) inch caliper tree per thirty (30) feet linear distance for each boundary line shall be provided.
b. 
When adjacent to a residential use or residentially zoned property, the landscape buffer shall not be less than thirty (30) feet in width.
c. 
All front yards under this Article shall be landscaped and maintained.
d. 
A fence, wall, hedge, landscaping, earth berm, natural buffer, or any combination thereof, shall be provided to screen uses or portions of uses which represent a potential negative impact on adjacent properties.
The following specific uses or features shall be screened from adjacent properties and from the view of any existing or proposed public street:
(1) 
Dumpster and trash hauling areas.
(2) 
Service entrances and utility facilities.
(3) 
Loading docks or spaces.
(4) 
Outdoor storage or material stocks, or equipment, including, but not limited to: motor vehicles, farm or construction equipment, or other similar items.
(5) 
Screening standards. In addition to the standards set forth elsewhere in this Article, the following standards apply to all screening:
(a) 
Minimum height of any screening shall be that which is sufficient to visually separate uses within the subject property from adjoining properties and streets.
(b) 
Height of any screening materials on a corner is controlled by vehicular sight distances.
(c) 
Shrubs used as screening materials shall be of the evergreen variety.
9. 
Utilities.
a. 
Any area zoned High Technology Corridor District shall be served by approved public water and sewer facilities or PSC-approved private utilities.
b. 
All utility distribution lines and conduits must be placed underground. In the instance of external equipment, such as transformers, screening will be required.
10. 
Parking.
a. 
Off-street parking shall be provided for all uses consistent with the provisions of Part 3, Article II, Section 405.440, et seq.
b. 
Loading areas shall not be located within any front yard and shall be properly screened so as to be not visible from any existing or proposed street. Screening may consist of earth berms or landscaping.
c. 
All off-street parking areas, which shall include drives within the parking areas greater than twenty (20) automobiles shall have at least five percent (5%) of the interior of parking area landscaped in planting islands or peninsulas. Width of the planting area or peninsula shall be seven (7) feet between the backs of the curbs and at least one (1) tree, one and one-half (1½) inch caliper, per twenty (20) parking spaces, shall be planted within the planting islands or peninsulas.
d. 
Design of parking lots should encourage the use of mass transit and ridesharing.
11. 
Performance standards.
a. 
All operations must take place within a fully enclosed building.
b. 
All storage of materials and equipment shall be within a fully enclosed building or a screened rear yard not visible to any adjacent property. Screening shall be defined as berms, dense vegetation, or wood or brick fences.
c. 
Access points shall minimize traffic congestion. Whenever possible, access to a roadway shall be made to service more than one (1) lot.
12. 
Signs.
a. 
Master sign plan. For developments containing three (3) or more structures, a master sign plan shall be required. This plan shall include information as to the type of sign allowed within the development, colors, lettering styles, and locations.
b. 
The only signs permitted within the "HTCD" will be for identification purposes and shall be located on-premise. No off-premise outdoor advertising signage billboards shall be allowed.
c. 
Park directory signs and/or map locator signs will be allowed at the entrance to an "HTCD" park. Such signs shall not be over twelve (12) feet in height and will have a face no greater than thirty-two (32) square feet.
d. 
Standards. Only two (2) types of signs will be permitted per lot in the "HTCD" — monument and attached. The following standards shall apply, in addition to those set forth in Part 3, Article III, Section 405.470, et seq.:
(1) 
Monument signs.
(a) 
Maximum area of face. One hundred (100) square feet.
(b) 
Setback. Ten (10) feet from the right-of-way.
(2) 
Attached signs.
(a) 
Maximum area of face. Ten percent (10%) of the wall area which faces a street.
e. 
Design. All signs shall reflect the architectural design scheme of the project and must be submitted as part of the site plan.
13. 
Architectural design standards.
a. 
Structures must be architecturally finished on all sides.
b. 
Metal-clad buildings are prohibited.
c. 
Acceptable exterior surface finish materials for buildings shall include masonry, brick, glass, stucco, or selected forms of aggregate.
d. 
All rooftop equipment shall be screened from view on all four (4) sides.
e. 
Pre-engineered and pre-fabricated structures are prohibited. However, this prohibition shall not extend to components or accessory functions of a building.