A. Large Office Campus Special Use; Purpose Of The Special Use: A moderate intensity office and research use to be known as a "large office campus special use" may be authorized in the O and R1 district pursuant to the provisions of this section. The purpose of a large office campus special use shall be to permit the establishment of a planned office campus environment involving large tracts of land in the O and R1 district. The office campus environment is intended to be developed in such a way as to complement the adjacent, semirural, wooded areas of the village, which consist mainly of single-family residential districts. The large office campus special use is suitable for the corporate headquarters of a major corporation. The minimum size of the required tract requires a coordinated approach that exhibits common thematic concepts and harmonious architectural design throughout the project.
B. Applicable Requirements: All requirements of the O and R1 district set forth in all of the preceding sections of this article shall be applicable to the large office campus special use, except where such requirements are specifically modified by this section or by the terms of an ordinance passed by the village board of trustees granting a special use permit for a large office campus special use.
C. Permitted Uses Under A Large Office Campus Special Use Permit: The permitted uses under a large office campus special use permit shall also be the permitted uses in the O and R1 district, with modifications as set forth below:
1. With respect to the entire tract for which the large office campus special use permit is initially approved, restaurant and employee cafeteria uses shall not be limited to ten percent (10%) of any one building primarily devoted to uses in subsections
9-5C-2A and B of this article, but may constitute ten percent (10%) of the total usable floor area allowable for such tract. Such uses shall not be available to the general public, but shall be restricted to employees, guests and invitees of the occupants of the building. Upon any subsequent subdivision of such entire tract, the portion of the usable floor area within the entire tract which is then devoted to restaurant and employee cafeteria uses shall be deducted in determining the allowable usable floor area remaining for such uses.
2. Daycare and related uses for use by employees, their families, guests and invitees shall be permitted uses under a large office campus special use permit. With respect to the entire tract for which the large office campus special use permit is initially approved, daycare and health club uses shall not be limited to ten percent (10%) of any one building primarily devoted to uses in subsections
9-5C-2A and B of this article, but may constitute ten percent (10%) of the total usable floor area allowable for such tract. Such uses shall not be available to the general public, but shall be restricted to employees, guests and invitees of the occupants of the building. Upon any subsequent subdivision of such entire tract, the portion of the usable floor area within the entire tract which is then devoted to daycare and health club uses shall be deducted in determining the allowable usable floor area remaining for such uses.
3. Parking garages and decks (including multistory garages and decks) shall be permitted uses under a large office campus special use permit even if not located within the buildings primarily devoted to uses in subsections
9-5C-2A and B of this article, provided that parking garages or decks located in the portion of the O and R1 district indicated on the map available in the village clerk's office shall be subject to the limitations of subsection D of this section.
For purposes of subsection C2 of this section, covered or enclosed walkways, bridges and service tunnels connecting any two (2) buildings on the site, whether above or below ground, shall be excluded from the definition of "usable floor area".
D. Intensity And Bulk Requirements: The intensity and bulk requirements that govern a large office campus special use shall be modified from those otherwise governing the O and R1 district as follows:
1. Minimum Site Area/Minimum Lot Size: The minimum site area at the time of application for a large office campus special use permit shall be seventy five (75) acres. There shall be no minimum lot size for subdivided lots that are created within a tract that is approved as a large office campus special use. However, a large office campus special use permit may limit the number of zoning lots (as defined in section
9-2-3 of this title) for the tract that is approved as a large office campus special use.
2. Floor Area Ratio: The maximum permitted floor area ratio in a large office campus special use shall be 0.3345. The village board of trustees, in granting a large office campus special use permit, shall have the authority to exclude "dedicated computer room space" from the space that would otherwise be counted in arriving at the maximum permitted number of usable square feet. "Dedicated computer room space" means space that is primarily intended to house computer services and other equipment with the understanding, however, that such space may be functionally designed and used for light staffing of personnel. Calculations of FAR shall be undertaken on the basis of the entire tract that is devoted to the large office campus special use and shall not be calculated on an individual lot by lot basis notwithstanding the subdivision of such tract as provided in subsection E of this section. The number of usable square feet remaining from time to time for development on any unimproved zoning lot within the entire tract that is devoted to the large office campus special use shall be the maximum permitted number of usable square feet for such entire tract less the number of usable square feet in the buildings already constructed on such tract (after applying the exclusion, if any, for dedicated computer room space).
3. Impervious Surface Area: The maximum permitted impervious surface area in a large office campus special use shall be .60. Calculations of ISR shall be undertaken on the basis of the entire tract that is devoted to the large office campus special use and shall not be calculated on an individual lot by lot basis notwithstanding the subdivision of such tract as provided in subsection E of this section. The amount of permitted impervious surface area remaining from time to time for development on any unimproved zoning lot within the entire tract that is devoted to the large office campus special use shall be the maximum permitted impervious surface area for such entire tract less the impervious surface area already existing on such tract.
4. Building Height: The maximum permitted building height in a large office campus special use shall be fifty eight feet (58'). Notwithstanding the foregoing, in granting a special use permit for a large office campus special use, the village board of trustees shall have the right to limit the maximum height of buildings, parking garages and decks located in "restricted area A" to thirty five feet (35') and the maximum height of buildings, parking garages and decks located in "restricted area B" to forty seven feet (47'). Such restricted areas are the respective portions of the O and R1 district that are indicated on the map available in the village clerk's office. Enclosed rooftop mechanical rooms, parapet walls and architectural features, such as articulated architectural wall panels and similar improvements, shall not be included in calculating building height provided that: a) rooftop mechanical rooms shall be centered in the middle of the roof area, away from the edge of the roof, and will not occupy more than thirty percent (30%) of the total roof surface area for the entire tract constituting a large office campus special use (measured at any time with respect to the full build out of all buildings built and projected to be built, according to the site plan) and not more than thirty seven percent (37%) of the roof surface area of any one building; b) rooftop mechanical rooms shall be enclosed and clad in material that is consistent and compatible with the architectural facade of the building; c) in no event shall the height of any architectural feature of a building exceed the height allowed for rooftop mechanical rooms or parapet walls of such mechanical rooms; and d) in no event shall any rooftop mechanical room, parapet wall or architectural feature extend more than eighteen feet (18') above the permitted fifty eight foot (58') building height. For purposes of determining the height of any building under pertinent provisions of this code, the portion of the building to be treated as the front may be identified on the site plan that is approved as part of the large office campus special use permit.
5. Multiple Buildings: Multiple buildings, if shown on the approved site plan, may be constructed and maintained on a tract devoted to a large office campus special use without the requirement of any subdivision or resubdivision of such tract into separate lots of record.
6. Determining Conformance To Bulk Regulations: An applicant for a large office campus special use permit shall have the right to include in its application, for purposes of establishing the site area of the large office campus special use, lands abutting or adjoining the land that is the subject matter of such application which, but for its prior dedication to a governmental entity by either the applicant or a related or affiliated entity or a related or affiliated predecessor in title, would have been included in the application provided the applicant delivers evidence of such prior ownership, in a manner acceptable to the village, prior to the date of approval of the ordinance granting the large office campus special use permit or within six (6) months after such date. If such evidence is provided, such lands shall be considered as part of the large office campus special use for purposes of determining satisfaction of and conformance to the minimum site area, FAR, ISR, setback, lot and other bulk requirements and limitations of this code (including lighting setback requirements). Similarly, any land that is a part of a large office campus special use that is dedicated or conveyed to a government entity by the owner of the site at the time of approval of the ordinance granting the large office campus special use permit or thereafter for public roadways, bike or pedestrian paths, utilities or similar public purposes shall be included in the site area of one or more of the zoning lots within the original tract (as specified by the owners of such lots) for purposes of determining satisfaction of and conformance to the minimum site area, FAR, ISR, setback, lot and other bulk requirements and limitations of this code (including lighting setback requirements).
E. Subdivision: After a large office campus special use permit is approved for a site, the site may be subdivided into separate lots of record provided the subdivision fully complies with the village's subdivision control ordinance (title 10 of this code), unless variations therefrom are approved by the village, and all other applicable code provisions. Before or simultaneously with the submission of an application for subdivision of the site, or any portion thereof, into separate lots of record, an application for an amendment to the ordinance granting the large office campus special use permit shall be submitted to the village for approval by the village board of trustees if the property owner proposes changes in the original site plan (as defined in subsection H of this section) as part of such subdivision. An application for such an amendment shall be processed in the same manner as the original application for the approval of a large office campus special use permit, except that the village board of trustees, after receipt of a plan commission recommendation, shall also consider the following standards in evaluating the application for amendment to the original site plan, namely whether, notwithstanding the approval of the requested amendment, the architectural and thematic unity of the large office campus special use, and the enhanced landscaping and building design contemplated by the approved site plan, will be maintained, and the standards referred to in subsection J of this section will continue to be satisfied. It shall be a further condition to approval of any subdivision involving a site classified as a large office campus special use that, if any time after the subdivision the resulting lots are not owned by a single owner or by affiliated or related interests of a single owner, then the site shall be made subject to covenants, conditions and restrictions of record (CC&Rs) between and among all owners of all property on the site for purposes of ensuring the ongoing maintenance of all common facilities, including common parking, roadways, landscape, storm water improvements and utilities, and the development of the site in a unified and cohesive manner. The CC&Rs shall provide the village, in a manner acceptable to the village, with the right, but not the obligation, to seek equitable relief to enforce such covenants and the provisions establishing such right of enforcement shall not be subject to amendment or revocation without the approval of the village. Following any subdivision, each resulting lot shall continue to be subject to the provisions of the ordinance granting the large office campus special use permit, as modified by the terms of any amendment to the special use permit.
F. Setbacks/Buffer Yards/Landscaping: Underground portions of buildings, service or utility tunnels or other underground improvements may be located within the required yard setbacks. The exterior of the original site for which the large office campus special use permit is initially approved shall be planted in a thirty five foot (35') wide buffer yard, except that all defined front yards (i.e., those yards which front on Lake-Cook, Saunders, Deerfield, Milwaukee or Portwine Roads) shall be planted in an eighty foot (80') wide buffer yard, and any areas subject to conservancy easements shall be planted or maintained in natural states as such easements may require. Lawn and planting beds and organized tree and shrubbery planting may complement areas near buildings. Landscaping in open areas away from the buildings should include some elements of natural landscape planting in order to extend visually, to the extent reasonably feasible, the natural areas required for buffer yards. Recognizing the greater density permitted for a large office campus special use and the varying degrees of landscape density appropriate to different portions of the site, the goal should be to landscape all areas not covered by impervious surface, storm water management facilities, water features or other improvements. The design of berms at the periphery of the site should incorporate natural, flowing contours, whenever possible, allowing for the establishment of natural, wooded areas in order that the exterior of the site shall promote the wooded character of the village.
G. Parking: As modifications to the standards in subsection
9-5C-5A of this article, if the proposed site plan indicates that no parking spaces will be compact stalls (i.e., only 8 feet in width), then the required minimum width of all parking stalls shall be eight feet six inches (8'6") and the required minimum width of a driving lane between parking stalls shall be eighteen feet (18') when angle parking is provided at seventy degrees (70°).
H. Contents Of Site Plan: The applicant for a large office campus special use permit or for an amendment to a large office campus special use permit (in the event that the original site is subdivided) shall make formal application to the village board of trustees on forms as directed by the village, including copies of a site plan (the "site plan") as described below. The proposed special use shall be the subject of a public hearing before the plan commission, as regulated in section
9-11-9, "Special Uses", of this title. The following items constitute the minimum requirements for the contents of a site plan, unless waived by the village board of trustees. The applicant should feel free to supplement the list with whatever materials deemed appropriate to illustrate compliance with the regulations and intent of this section. Maps which shall be included as part of the application shall be drawn at a scale not more than one hundred feet to one inch (100' = 1"). All maps shall be dated and include a scale and north point.
1. A legal description of the site.
2. A boundary line survey of the site prepared and certified by a registered land surveyor, showing the dimensions of the property's boundaries and all existing rights of way adjacent to the property.
3. Existing and proposed topography of the land with contours shown at intervals no greater than two feet (2'). Topographic data shall refer to the "USGS North American Datum - Mean Sea Level Elevation".
4. Existing and proposed landscape features including significant tree groupings, isolated preservable trees six inches (6") or more in diameter at one foot (1') above ground level, scenic views and other natural features such as lakes, ponds, waterways, wetlands and floodplains, and a conceptual landscaping planting plan, indicating the height, size, location, quantities and variety of plant materials.
5. Existing zoning and land uses on and adjacent to the site.
6. Locations and dimensions of all existing and proposed structures, building heights, number of stories, entrances, gross floor areas, floor area ratios and impervious surface ratios. The site plan shall indicate any future phases that are not presently planned for construction and indicate the same information for such contemplated buildings to the extent known.
7. All proposed uses including statistical tabulation of the acreage amounts of all uses.
8. Locations and dimensions of all existing and proposed streets (to the extent known, with respect to sites that are to be developed in phases), curb cuts, aisles, bicycle paths and walkways, the number and location of all parking spaces and loading areas and the names of all streets. If the exact use of a future phase of the site is not known at the time of a site plan submittal, parking and loading requirements shall be calculated for the general use having the greatest parking and loading requirements.
9. All areas to be dedicated as common open space, designated for easements, and all sites to be conveyed, dedicated or reserved for parks, playgrounds, school sites, public buildings and similar public and quasi-public uses, together with the proposed plan for the permanent maintenance of such common open space areas.
10. A utility concept plan, including the location of all existing sanitary sewer, storm sewer and water main lines on the site and on property immediately adjacent to the site. Similar information shall be provided for gas, electric, telephone and cable television utilities.
11. A storm water drainage plan, identifying portions of the site in the floodplain or in floodplain fringe areas, the existing and proposed flow and storm drainage, and the location of drainage ditches and culverts, standing water and proposed detention/retention facilities.
12. Location, height and material for all screening walls and fences, the type and height of outdoor proposed parking and roadway lighting facilities and the location and dimensions of each outdoor trash storage area.
13. A traffic study by a qualified traffic engineer indicating the volume of traffic to be generated by the large office campus special use and proposing any special engineering design features and/or traffic regulation devices needed to ensure the proper safety of traffic circulation to, through and around the site.
14. Architectural drawings, elevations and renderings depicting the design features of the development and a specifications list for materials and finishes.
15. If a subdivision of the site is requested by the applicant, a preliminary subdivision plat or, at the applicant's option, a final subdivision plat of all subdivided lands in the same form and meeting all requirements of the Riverwoods subdivision control ordinance, to the extent that compliance with the subdivision regulations of the village shall be required by the village board of trustees.
16. Other information requested by the plan commission or the village board of trustees within thirty (30) days after the commencement of the public hearing on the application for special use approval, necessary to reasonably clarify the proposal and its economic impact.
I. Special Use Processing:
1. The village clerk shall forward one copy of the site plan and special use permit documents to each of the following persons within five (5) working days of receipt thereof from the applicant: village president and trustees, all members of the plan commission, the village engineer, the village planner and the village attorney. The balance of the copies of the documents shall be held on file by the village clerk for use by other public officials as may be required.
2. The plan commission shall, within sixty (60) days of the filing, conduct a public hearing on the special use permit application in accordance with applicable statutes.
3. Within a reasonable amount of time, usually within forty five (45) days after the adjournment of the public hearing, the plan commission shall submit in writing its findings of fact and recommendations to the village board of trustees and the applicant, based on the standards set forth in subsection J of this section.
4. The board of trustees shall approve, approve with conditions and modifications or reject the application seeking approval of a large office campus special use permit within a reasonable amount of time, usually within sixty (60) days after its next regular meeting following the receipt of the written recommendation of the plan commission. If the large office campus special use permit is not approved, the village board of trustees shall state in writing the reasons for the decision and such writing shall be filed with the village clerk, and a copy shall be sent to the applicant. If the large office campus special use permit is approved or approved with conditions and modifications, the village clerk shall amend the official zoning map of the village to show the approved underlying zoning district and the number of the ordinance approving the large office campus special use permit.
5. The village board shall have the authority to establish in a large office campus special use permit the manner in which subsequent amendments to an approved site plan may be undertaken, reviewed and approved.
J. Required Findings: No applicant for a large office campus special use permit or for an amendment to an existing large office campus special use permit shall be approved unless the village board of trustees, in addition to making the required findings under section
9-11-9 of this title, shall find that the proposal exhibits reasonably substantial adherence to the purposes and objectives of a large office campus special use. The following standards shall be used by the village board of trustees to evaluate whether an application for a large office campus special use permit exhibits reasonably substantial adherence to the purposes and objectives of this section:
1. Landscaped areas exhibit continuity with prior stages of development and satisfy the goals of the O and R1 district and the large office campus special use.
2. Exposed storage areas, trash and garbage retainers, exposed machinery installation, service areas, truck loading areas, utility buildings and structures, and similar accessory areas and structures are accounted for in the design of the project, are screened from view and made as unobtrusive as reasonably possible.
3. Internal traffic control design minimizes traffic backups and other hazards on adjacent external roads for motorists entering and exiting the site.
4. The orientation of any buildings, including parking garages and decks, attempts to minimize the adverse impacts on any adjacent residential areas from lighting, noise, deliveries, loading and unloading and general activity levels.
5. Storm water detention facilities are designed as a visual amenity for the project.
6. The exterior elevations of the buildings call for the use of higher grade finishes and materials and demonstrate an architecturally harmonious development with other, existing buildings throughout the entire site.
7. If the development consists of more than a single zoning lot or several subdivided lots under multiple ownerships, the CC&Rs ensure the continued maintenance of the properties and of the various amenities, landscaping and design features of the site.
K. Conditions Of Development: After the approval of a large office campus special use permit, the use of land and construction, modification or alteration of any buildings or structures on the designated site shall be governed by the approved site plan and all applicable village ordinances not specifically waived in the ordinance granting the large office campus special use permit. In addition, no permit shall be issued for any construction pursuant to a large office campus special use permit until the developer posts with the village an irrevocable letter of credit running to the village in an amount sufficient to cover the full cost, including engineering, legal and inspection fees and costs, plus twenty five percent (25%) of such total, to ensure the satisfactory installation of all streets, sidewalks, curbs, gutters, sanitary sewers, storm sewers, water mains, roadway lighting, landscaping in perimeter setback areas and retention/detention areas. The cost of the improvements shall be based on confirmed estimates approved by the village engineer and the letter of credit shall be reviewed by the village attorney for conformance to village ordinances. Any new construction on a vacant part of the site originally designated as a large office campus special use, if commencing more than twenty (20) years after the date of the ordinance granting the large office campus special use permit, shall be governed by the provisions of the O and R1 district, unless application for extending the large office campus special use permit is submitted to and approved by the village board of trustees in accordance with the procedures set forth in this section. As to portions of the site that are developed within twenty (20) years after the date of the ordinance granting the large office campus special use permit, the large office campus special use permit shall remain in effect and shall not lapse at any time as a result of the passage of time or the occurrence or failure to occur of any event. (Ord. 01-8-23, 8-7-2001)