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Ordinance 1999-18 STATE OF ILLINOIS ) Revised 10/13/99 ss COUNTY OF KENDALL ) ORDINANCE NO 99--t UNITED CITY OF YORKVILLE LANDSCAPE ORDINANCE SECTION 1: APPLICABILITY: For all development activity requiring a building permit in all zoning districts, landscaping shall be provided, as follows: 1. For single family detached and duplex residential development: a. New Construction: Parkway landscaping, and landscaping adjacent to primary and secondary arterials and collector. b. Existing Construction: Parkway landscaping, as required by the City Council for any conditional use,rezoning,variance or change to a PUD. 2. For all other development, other than single family detached and duplex residential development;parkway landscaping,perimeter landscaping,parking lot landscaping, lot landscaping and landscaping adjacent to primary and secondary arterials shall be required as provided in this Ordinance. SECTION 2: LANDSCAPE REQUIREMENTS: The following requirements in this section are cumulative: 1. Parkway Landscaping: a. For all single family detached and duplex residential development, the minimum required number of parkway trees are as follows: Interior lots- one tree per lot. Corner lots-two trees per lot(one tree per side). All other lots- (such as parks and retention/detention areas) one tree per 50 lineal feet of frontage. 1 b. For all development other than single family detached and duplex residential development, the minimum required number of parkway trees is one tree per 50 lineal feet of frontage. c. All parkways shall have minimum of 6 inches of good, clean, clump-free topsoil neatly leveled to uniform grade from the top of curb to the top of sidewalk after settling. Trees planted in the parkway will not be allowed. Trees shall be planted within the in the public parkway between the curb and sidewalk. d. All parkways shall have a good, thick stand of grass utilizing sod or seed per the IDOT specifications including fertilizing. The developer as covered by the required maintenance letter of credit will repair any settling of grass loss during the one-year maintenance period. The minimum gradient of all parkways toward the curb shall be 2% and the maximum shall be 8%. All areas shall be seeded or sodded and fertilized in an approved manner. Grass watering and mowing to a maximum height of 5 inches will be the responsibility of the developer through the one year required maintenance period after City acceptance. Parkways will be a minimum of 10 feet in width from the back of the curb to the front edge of the sidewalk. e. No tree shall be planted closer than 30' of the right-of-way intersection. f. Trees shall have a minimum spacing of 20 feet from light poles, street signs, fire hydrants and any other such items that may, in the opinion of the Public Works Director,require similar intervals. g. Trees under wires are not to exceed 20 feet in height at maturity. h. Parkway trees shall be planted prior to the issuance of a certificate of occupancy. It shall be the responsibility of the developer or builder to properly water all newly planted parkway trees at the time of planting, and subsequently thereafter,to insure their survival for a period of one year after City Council acceptance of the public improvements. i. Only approved shade trees may be used as parkway trees. 2. Perimeter Landscaping: Perimeter landscaping shall be required for all developments, other than single family detached and duplex residential development, in accordance with the following: a. Non-residential adjacent to residential: Where a non-residential property is adjacent to residential property a 30'wide buffer yard shall be provided. The bufferyard shall consist of a berm or architectural masonry wall, at least 3' in height as measured from the property line. The bufferyard shall also consist of 2 shade trees, 5 evergreen trees and 2 three ornamental trees per 100 lineal feet of bufferyard. b. Non-residential adjacent to a public right of way: Where a non-residential property is adjacent to a public right-of-way, a 30' landscape bufferyard shall be provided. The bufferyard shall consist of one shade tree, one evergreen tree and 33 shrubs per 100 lineal feet of bufferyard. c. Multi-family residential adjacent to single family detached and duplex residential: Where multi-family residential property is adjacent to single family detached or duplex residential a 30' landscape bufferyard shall be provided. The bufferyard shall consist of three shade trees, three evergreen and two ornamental trees per 100 lineal feet of bufferyard. 3. Parking Lot Landscaping: All parking lots with ten(10) or more parking spaces, shall provide landscaping in accordance with the following: a. Interior Parking Lot Landscaping: 1. Interior Landscaping: One tree shall be provided for every 20 parking space and shall he planted within the interior of the parking lot. Trees shall be located in landscape medians, which have a minimum area of 190 square feet and a minimum dimension of 10 feet. The landscape median shall be covered with shrubs,round cover, turf or organic mulch. 2. Visibility: To ensure proper visibility within the parking lot,the branches of trees shall start no less than six feet(6') above the pavement and shrubs shall he maintained at a height of no greater than 30" above the pavement. b. Perimeter Parking Lot Landscaping: When a parking lot, which is located on a non-residential property, is adjacent to another non-residential property, a 5'perimeter bufferyard shall be provided along the parking lot. The buffer yard shall consist of two shade trees and 15 shrubs per 100 lineal feet of buffer yard. 4. Lot Landscaping: Lot landscaping shall be required for all developments other than single family detached residential and duplex developments in accordance with the following: a. Multi-family: Two canopy trees and 15 shrubs shall he provided for every four units. b. Non-residential: Two shade trees and 15 shrubs shall be provided for every 20,000 sf, of lot area. 3 5. Landscaping Adjacent to Primary and Secondary Arterials and Collector: Residential lots which back up to an Arterial or Collector as defined in the Yorkville Comprehensive Plan, shall provide a minimum 30'wide landscape easement running the full length of the residential lots. This easement shall he planted with 3 shade trees, 4 evergreens and 20 shrubs per 100 feet. 6. Storm Water Storage Basins: A 30'bufferyard shall he provided around storm water storage basins which are within the front or side yard. The bufferyard shall be located above the average elevation between normal water level and the high water line for retention basins and shall be located above the average elevation between the lowest basin elevation and the high water line for detention basins. SECTION 3• GENERAL STANDARDS 1. Landscape Plan: A landscape plan shall be submitted for review and approval. The landscape plan shall contain the following information: a. The location and dimensions of all existing and proposed structures,parking lots, sidewalks, ground signs,refuse disposal areas, free standing electrical equipment, and other freestanding structural features. b. Name, location,right-of-way and pavement widths of abutting streets. c. The current zoning and land use for adjoining properties and properties located across abutting streets. d. The location, quantity, size, and type(both botanical and common names) of all existing landscaping to be preserved and all proposed landscaping to he added. e. The location and contours, atone-foot(1') intervals, of all proposed berming and storm water detention/retention ponds. f. Specification of the type and boundaries of all proposed ground cover. g. Elevation and location of all existing and proposed fences. h. Location of all existing and proposed utilities and easements. i. Property line dimensions. 4 2. Quality: All trees shall be planted according to the minimum standards established by the American Association of Nurserymen. Plant material shall be grown in nurseries from the Central or Northern Illinois region. 3. Size: The size of plant material required by this ordinance shall be as follows: Shade Tree-3" cal. measured 6" above grade Evergreen Tree - 8'height Ornamental Tree- 6'height Shrubs - 24" 4. Substitutions: For the purposes of providing flexibility in the landscape design substitutions may be allowed at the following rates: 1 Tree equals 2 Evergreen Trees 1 Tree equals 2 Ornamental Trees 1 Tree equals 20 Shrubs Inspection of the applicant's property will be conducted by the Development Department after the installation of all materials by the applicant and again after at least one (1) full growing season has passed. 5. Alternative Methods of Compliance: Site conditions may arise where normal compliance is impractical or impossible or where maximum achievement of the City's objectives can only he obtained through alternative methods. a. Requests for alternative methods of compliance may be considered by the City for any application to which the requirements of the Ordinance apply when one(1) or more of the following conditions are present: 1. Topography, soil,vegetation or other site conditions are such that full compliance is impossible or impractical, or improved environmental quality would result from the alternative compliance. 2. Space limitations or the existing character surrounding neighborhood may justify alternative compliance for infill sites and for improvements or redevelopment in older developed areas. 3. A change of use on an existing site increases the screening required to more than is feasible to provide. 5 4. Safety considerations make alternative methods of compliance necessary. b. Requests for alternative methods of compliance shall be accompanied by sufficient explanation and justification,written and graphic, to allow appropriate evaluation and decisions by the City Planner. c. A proposed alternative compliance measure must be equal to or better than normal compliance in terms of quality. effectiveness, durability,hardiness and ability to meet the landscape standards of the Ordinance. d. Alternative compliance shall be limited to the specific project under consideration and shall not establish precedents for acceptance in other eases. 6. Credit for Existing Vegetation: Credit shall be given for existing trees that are preserved. Each tree that is preserved which is greater than 3" caliper and is a permitted tree per section, shall be credited towards the required tree planting on a tree for tree basis. Other existing vegetation may be credited towards the required plantings subject to the review and approval of the City Planner. 7. Permitted Plantings: The plantings used to meet the requirements of this ordinance shall be selected from the follow list of approved plant material. Shade Trees: Ash, Green Fraxinus pennsylvanica spp. Ash, White Fraxmnus americana spp. Coffeetree,Kentucky Gymnocladus dhioica Ginkgo Ginko biloba Hackberry Celtis occidentialis Linden American Tilia americana spp. Linden,Littecleaf Tilia cordata spp. Linden, Silver Tilia tomentosa Maple,Black Acer nigrum Maple,Norway Acer platanoides spp. Maple,Red Acer rubrum spp. Maple, Sugar Acer saccharum spp. Oak,Burr Quercus macrocarpa Oak,Red Quercus rubra Oak, Swamp White Quercus bicolor Oak, White Quercus alba Pear, Bradford Pyrus cahleiyana 6 Sycamore Platanus occidentahis Tuliptree Liriodendron tuhipifera Evergreen Trees Fir,Douglas Pseudotsuga menziesii Fir, White Abies coneolor Pine, Austrian Pinus nigra Pine, Scotch Pinus sylvestris Pine, White Pinus strobus Spruce, Blackhills Picea glauca"densata" Spruce, Colorado Picea pungens Spruce,Norway Picea abies Spruce, White Picea glauca Ornamental Trees Alder Alnus glutinosa Birch, River Malus spp. Hawthorne, Downy Craetoegus mollis Hawthorne, Washington Craetoegus phaenopynu, Hawthorne, Thorn less Cockspur Crataegus crusgalli "inermis" Hombean, American Carpinus caroliniana Lilac, Japanese Tree Syringa reticulata Magnolia, Saucer Magnolia souulangiana Magnolia, Star Magnolia stellata Redbud Cercis canadensis Serviceberry, apple Amelanchier grandiflora Servicebenry, Shadblow Amelanchier canadensis Shrubs Those species and varieties hardy to USDA Zone 5. Other plant material not listed may be allowed on a case by case basis as determined by the City Planner. 7 r BURTON CALLMER DAVE DOCKSTADER RICHARD STICKA K MIKE ANDERSON VALERIE BURD E ROSE SPEARS LARRY KOT A— THOMAS SOWINSKI APPROVED by me, as Mayor of the United City of Yorkville, Kendall County, Illinois, this I ay of , A.D. 19� MAYOR PASSED by the City Council of the United City of Yorkville,Kendall County, Illinois AL this 4Aay of w , A.D. 19' Attest: QQ � CITY CLERK 8