§ 154.125 I-1 INDUSTRIAL DISTRICT.
   (A)   Purpose. The I-1 Industrial District is intended to encourage industrial development in the appropriate areas of the city. These uses shall maintain a high level of performance and appearance, including open spaces and landscaping and encourage development that is compatible with surrounding abutting districts.
   (B)   Permitted uses. The following uses shall be permitted within the I-1 Industrial District:
      (1)   Aircraft rental, sales, servicing, manufacturing and related activities;
      (2)   Antennas for radio, television and broadcasting facilities;
      (3)   Art equipment supplies manufacture;
      (4)   Bags, boxes and paper containers, manufacturing and storage;
      (5)   Bakery products, wholesale;
      (6)   Bottling establishments;
      (7)   Blank books, looseleaf binders (fabrication and assembly);
      (8)   Books and binding;
      (9)   Building materials sales and storage, lumber yards;
      (10)   Cabinet and woodworking establishments;
      (11)   Cartage and express facilities;
      (12)   Clothing manufacturers;
      (13)   Camera and photographic manufacturing;
      (14)   Cold storage plants, commercial printing, publishing, engraving and reproduction firms;
      (15)   Confectionery and related products, manufacture and packaging;
      (16)   Dental instruments and supplies;
      (17)   Dry cleaning and dying establishments;
      (18)   Electric lighting and wiring equipment manufacturers;
      (19)   Electric measuring and testing equipment manufacturers;
      (20)   Electronic measuring and testing equipment (manufacturers);
      (21)   Electrical products and appliances (manufacture and assembly);
      (22)   Farm implement sales and storage;
      (23)   Footwear (manufacture and fabrication);
      (24)   Freight terminal;
      (25)   Frozen food lockers;
      (26)   Hand and edge tools (except machine tools) manufacture and assembly;
      (27)   Hardware warehousing and distribution operations;
      (28)   Highway maintenance shops and yards;
      (29)   Ice plants and ice cream plants;
      (30)   Jewelry manufacturers;
      (31)   Laboratory instruments and associated equipment, scientific and testing;
      (32)   Laundries, large scale;
      (33)   Luggage, handbags and similar items (manufacture and assembly);
      (34)   Mail order houses;
      (35)   Medical and surgical instruments and supplies;
      (36)   Newspaper plants and offices;
      (37)   Office furniture and supplies;
      (38)   Optical instruments and lenses (manufacture and assembly);
      (39)   Patterns (design and manufacture);
      (40)   Pottery shops;
      (41)   Precision instruments;
      (42)   Plastic extrusion molding and fixtures;
      (43)   Plumbing fixtures and equipment (wholesale/retail);
      (44)   Radio and television (assembly and parts fabrication);
      (45)   Signs and billboards (as regulated in §§ 154.210 through 154.214 of this chapter);
      (46)   Sport equipment (manufacture and assembly);
      (47)   Scientific and research instruments and equipment (manufacture and assembly);
      (48)   Telephone and telegraph apparatus (manufacture and assembly);
      (49)   Temperature controls (fabrication and assembly);
      (50)   Trade schools;
      (51)   Welding supply;
      (52)   Wholesale business facilities; and
      (53)   Warehousing facilities.
   (C)   Conditional uses. The following uses may be allowed in the I-1 Industrial District:
      (1)   Grain elevators;
      (2)   Electrical substations;
      (3)   Planned industrial parks;
      (4)   Any manufacturing, production, processing, cleaning, storage, servicing, repair and testing of materials, goods or products similar to those listed in division (B) above, which conform with the performance standards set forth for this district;
      (5)   Contractors offices, shops and yards for plumbing, heating, glazing, painting, roofing, ventilating, air conditioning, masonry, electrical and refrigeration;
      (6)   Fuel sales and storage (bulk);
      (7)   Monument works;
      (8)   General manufacturing and fabrication facilities;
      (9)   Junk yards, salvage yards, dumping grounds;
      (10)   Extraction, processing and storage of sand, gravel, stone or other material;
      (11)   Acid manufacture;
      (12)   Cement, lime, gypsum or plaster of Paris manufacture;
      (13)   Distillation operations;
      (14)   Fat rendering;
      (15)   Fertilizer manufacture, sales;
      (16)   Gas, illuminating or heating, manufacture;
      (17)   Glue manufacture;
      (18)   Petroleum refining;
      (19)   Smelting of ores; and
      (20)   Tanneries.
   (D)   Accessory uses. The following uses shall be accessory uses within the I-1 Industrial District:
      (1)   All uses customarily incident to the uses permitted in divisions (B) and (C) above; and
      (2)   Off-street parking and loading as regulated in §§ 154.180 through 154.196 of this chapter.
   (E)   Height regulations. No structure shall exceed four stories or 45 feet in height; except that, cooling towers, elevator penthouses, domes which do not contain usable space, water towers and smoke stacks may be of any height which does not conflict with airport requirements.
   (F)   Front yard regulations.
      (1)   There shall be a front yard setback of not less than 65 feet from the centerline of all state and county highways and all other public rights-of-way.
      (2)   Where a lot is located at the intersection of two or more roads or highways, there shall be a front yard setback on each road or highway side of each corner lot. No accessory building shall project beyond the front yard setback line of either road.
   (G)   Side yard regulations. There shall be a side yard on each side of a building, each yard having a width of not less than 15 feet; except, where the district abuts a residential district, the side yard shall have a width of not less than 50 feet and shall contain a solid fence or a vegetative screening.
   (H)   Rear yard regulations. There shall be a rear yard having a depth of not less than 15 feet; except, where the district abuts a residential district, there shall be a rear yard having a depth of not less than 50 feet and shall contain a solid fence or a vegetative screening.
   (I)   Lot area regulations. Every individual lot, site or tract shall have an area of not less than 20,000 square feet.
   (J)   Minimum district area regulations. No I-1 Industrial District shall be established on less than ten acres in single ownership or other unified control. This requirement shall not apply where the tract abuts an existing industrial district.
   (K)   Lot coverage regulations. Buildings shall not cover more than 50% of the total area of a lot.
   (L)   General regulations. Additional requirements applicable to the I-1 Industrial District are set forth in §§ 154.140 through 154.167 of this chapter.
(2001 Code, § 11.10)