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SEC. 12.17.5.  “MR1” RESTRICTED INDUSTRIAL ZONE.
   (Amended by Ord. No. 148,969, Eff. 12/16/76.)
 
   The following purpose and regulations shall apply to “MR1” Restricted Industrial Zone:
 
   A.   Purpose:
 
   1.   To protect industrial land for industrial use, and prohibit unrelated commercial and other non-industrial uses.
 
   2.   To provide a reasonable range or interim uses in this zone, so that land owners may receive income from temporary use, while the industrial land reserve is being protected for future growth.
 
   3.   To upgrade industrial development standards,
 
   a.   so that industry will be a better neighbor to residences
 
   b.   to protect industrial investment against incompatible residential, commercial and industrial uses, and           
 
   c.   to prevent future industrial blight.
 
   4.  To preserve industrial land for light industrial uses and to provide for non- retail businesses which enhance the City’s employment base.  (Added by Ord. No. 169,366, Eff. 4/1/94.)
 
   5.   To reflect and accommodate the shift in industrial land use from traditional industrial activity to uses such as those involving record management, Research and Development, information processing, electronic technology, and medical research.  (Added by Ord. No. 169,366, Eff. 4/1/94.)
 
   B.   Use. (Amended by Ord. No. 148,969, Eff. 12/16/76.) No building, structure or land shall be used and no building or structure shall be erected, structurally altered, enlarged or maintained, except for the following uses, or where a “Supplemental Use District” is created by the provisions of Article 3 of this chapter, for such uses as may be permitted therein.
 
   1.   Any use specified in Section 12.17.1-A,2, as first permitted in the CM Zone provided that all regulations of said zone are complied with.
 
   2.   (Amended by Ord. No. 156,994, Eff. 9/25/82.)  Any use permitted in the C2 Commercial Zone, provided that these uses are conducted in accordance with all building enclosure and fence enclosure limitations of said C2 zone, and further provided:
 
   (a)   Any such use is devoted primarily to the manufacturing of products, or assembling, compounding, processing or treating of materials and that all retail business conducted in connection with such use is only incidental to the main use; or
 
   (b)   Any such use is devoted primarily to the development of software and other computer or media-related products or services, or  (New Sub-para. (b) Added by Ord. No. 172,106, Eff. 8/14/98.)
 
   (c)   Any such use is conducted only as an accessory use to the main  use, and provides services for those persons employed on the premises.  (Sub-para. (b) Renumbered Sub-para. (c) by Ord. No. 172,106, Eff. 8/14/98.)
 
   3.   The following uses:
 
   a.   Farming, nurseries, aviaries and apiaries.  (Amended by Ord. No. 181,188, Eff. 7/18/10.)
 
   b.   Bank.
 
   c.   Clinic.
 
   d.   Laboratory or research and development center.
 
   e.   Offices, accessory to the primary industrial use of the lot, and showrooms for products produced on the premises; provided that the total floor area of such offices and showrooms does not exceed the floor area of the primary industrial use, and that all of the merchandise sold during each calendar month is sold at wholesale.  (Amended by Ord. No. 169,366, Eff. 4/1/94.)
 
   f.   Printing and publishing, wholesale.
 
   g.   Recreation facility, open or enclosed, as an accessory use incidental to the primary industrial use of the lot, provided that such recreation facility shall not exceed 10 percent of the total lot area. (Amended by Ord. No. 159,916, Eff. 7/7/85.)
 
   h.   Restaurant (including cafe), as an accessory use incidental to the primary industrial use of the lot and for the exclusive use of persons employed on such lot and provided that there shall be no outdoor signs advertising such restaurant. (Amended by Ord. No. 159,916, Eff. 7/7/85.)
 
   (i)   Corporate headquarters, record-keeping and computer support facilities for the processing of retrievable information and systems control.  (Added by Ord. No. 169,366, Eff. 4/1/94.)
 
   (j)   Office buildings if used only for offices of industrial firms, industrial engineering firms, and other professional, administrative, and clerical services needed by industries in the area.  (Added by Ord. No. 169,366, Eff. 4/1/94.)
 
   (k)   Facilities for the development and/or production and manufacture of computer and media-related products and services, including hardware.  (Added by Ord. No. 172,106, Eff. 8/14/98.)
 
   (l)   Wireless antennas, including the associated equipment cabinets, located on the rooftops of buildings when established in conformance with the standards contained in Section 12.21 A.21. of this Code, and which are not located within a scenic parkway specific plan, scenic corridor specific plan, or a roadway designated as a scenic highway within a specific plan area; or on the rooftops of buildings that are designated on the National Register of Historic Places, including Contributing Buildings in National Register Historic Districts, the California Register of Historic Resources, the City of Los Angeles List of Historic-Cultural Monuments, or a Contributing Structure located in an Historic Preservation Overlay Zone (HPOZ) that has been established pursuant to Section 12.20.3 of this Code.  (Added by Ord. No. 177,120, Eff. 12/26/05.)
 
   4.   The following uses when conducted wholly within a completely enclosed building, except for incidental storage, and conducted in accordance with the limitations hereafter specified:
 
   a.   The manufacturing, compounding, processing or treating of such products as drugs, pharmaceuticals, and perfumed toilet soap (no refining or rendering of fats or oils).
 
   b.   The manufacturing, compounding, assembling, or treating of articles or merchandise from the following previously prepared materials, cork, feather, fibre, hair, horn, tobacco, and paint (not employing a boiling process).
 
   c.   The manufacturing of ceramic products, provided that there is no pulverizing of clay.
 
   d.   The manufacturing of concrete or cement products.
 
   e.   The manufacturing and maintenance of electrical and neon signs, billboards, commercial advertising structures, light sheet metal products, including heating and ventilating ducts and equipment, cornices, eaves and the like.
 
   f.   The manufacturing of food products (except fish products, sauerkraut, vinegar, yeast, or the rendering or refining of fats and oils), provided that no noxious or offensive odors are permitted to emanate from the premises.
 
   g.   The manufacture of machine belting from previously tanned leather.
 
   h.   The manufacturing of musical instruments, toys, novelties, and metal stamps.
 
   i.   The manufacturing of plastic, rubber or synthetic rubber products,  such as washers, gloves, bathing caps, tableware, buttons, stamps, mats, and the like, not involving the use of rolling mills of more than 60 inches in length, or the use of Banbury Mills.
 
   j.   Blacksmith shops and machine shops not involving the use of drop hammers, automatic screw machines, or punch presses with a rated capacity of over 20 tons; provided, that punch presses with a rated capacity of over 20 tons may be used, if they are located within the building and are installed and cushioned in accordance with a plan which the Department of Building and Safety has determined will satisfactorily prevent the emanation of objectionable noise and vibration to adjoining property.
 
   k.   Distribution, plants, parcel delivery service, ice and cold storage plants, a bottling plants.
 
   l.   Laundry, cleaning and dyeing works, and carpet and rug cleaning  plants.
 
   m.   (None)
 
   n.   Truck repairing or overhauling; wholesale automobile assembling, rebuilding or conditioning; wholesale rebuilding of automobile parts accessories or assemblies; tire retreading or recapping; battery manufacturing; and the like.
 
   o.   Veterinary, dog and cat hospitals, kennels, or facilities for breeding and boarding of animals (no outside keeping of animals - no open runs).  In no case, however, shall any new kennel or animal breeding and boarding facility be constructed where any portion of the parcel is located within 500 feet of a residential zone without obtaining a conditional use permit pursuant to Section 12.24 of this Code.  (Amended by Ord. No. 169,013, Eff. 9/28/93.)
 
   p.   Woodworking shops and sash and door manufacturing including only incidental mill work; provided that if a planner, router, sticker or moulder is maintained, all doors and windows in the outside walls of the room in which said machinery is located, shall be kept closed while said machinery is in use.
 
   q.   Cannery or bottling plant (except fish products or sauerkraut). (Amended by Ord. No. 148,969. Eff. 12/16/76.)
 
   r.   Cigarette factory.  (Amended by Ord. No. 148,969, Eff. 12/16/76.)
 
   s.   Electroplating works. (Amended by Ord. No. 148,969, Eff. 12/16/76.)
 
   t.   Furniture manufacturing (only incidental mill work - planers, routers, stickers, and moulders operated in room with doors and windows closed).  (Amended by Ord. No. 148,969, Eff. 12/16/76.)
 
   u.   (None)
 
   v.   Heat treating, case hardening, tempering, apply solid film lubricants and similar processing of small parts used in manufacturing of mechanical apparatus, devices or equipment.  (Amended by Ord. No. 148.969, Eff. 12/16/76.)
 
   w.   Metal spinning.  (Amended by Ord. No. 148,969, Eff. 12/16/76.)
 
   5.   The following uses when conducted wholly within a completely enclosed building or within an area enclosed on all sides with a solid wall or solid fence not less than six feet in height, when no material or equipment is stored to a height greater than that of the enclosing wall or fence and the wall or fence is maintained as provided in Section 12.21-A.9:
 
   a.   Building material sales yard, including the sale of rock, sand, gravel and the like as an incidental part of the main business, but excluding concrete mixing.
 
   b.   Contractor’s equipment storage yard or plant.
 
   c.   Draying, freighting, or trucking yard or terminal.
 
   d.   Lumber yard, retail, including only incidental mill work; provided that any planer, router, sticker or moulder used for such mill work shall be maintained in a completely enclosed building or room within a building, and that all doors and windows in the outside walls of such building or room shall be kept closed while said machinery is in use.
 
   e.   Motion picture, television, video and other media production, with outdoor sets.  (Amended by Ord. No. 172,106, Eff. 8/14/98.)
 
   f.   Open storage, not including the storage of impounded, abandoned, partially dismantled, obsolete or wrecked automobiles or similar equipment, or salvage, junk or scrap metal yards, provided no material or equipment is stored to a height greater than that of the wall or fence enclosing the storage area.
 
   g.   Parking of trucks or buses.
 
   h.   Public utility service yard or electrical receiving or transforming station.
 
   i.   Small boat building, except shipbuilding.
 
   6.   Other uses similar to the above, as provided in Section 12.21-A.2 but not including uses which are or may become obnoxious or offensive by reason of emission of odor, dust, smoke, noise, gas, fumes, cinders, vibration, refuse matter or water-carried waste, as determined by a Zoning Administrator.
 
   7.   Conditional uses enumerated in Section 12.24 when the location is approved pursuant to the provisions of said section.
 
   8.   Public parking areas and parking buildings as primary or accessory uses, and loading space required or provided in connection with the permitted uses, as provided in Section 12.21-A and 12.21-C.6 of this Code.
 
   9.   Uses customarily incident to any of the above uses, and accessory buildings when located on the same lot, provided:
 
   a.   A dwelling shall be considered to be a permissible accessory building only when it is designed for and used solely by a watchman or caretaker (including his family) of an industrial development or of a permitted use which requires 24-hour supervision and is located on the same lot with such development or use.
 
   b.   (Amended by Ord. No. 162,335, Eff. 6/6/87.) Open storage of materials and equipment, including used materials and equipment, shall be permitted only within an area enclosed on all sides with a solid wall or fence not less than six feet in height. No material or equipment shall be stored to a height greater than that of the wall or fence enclosing the storage area, except that storage in lumber yards may be at a height greater than said wall or fence.
 
   The phrase “used materials and equipment” includes vehicles, boats, or airplanes which are inoperable, wrecked, damaged or unlicensed i.e. not currently licensed by the Department of Motor Vehicles.
 
   c.   Signs or advertising structures shall indicate only the name, occupation, or nature of activities conducted, services offered or the product sold or manufactured on the premises.
 
   d.   Open storage of materials and equipment, including used materials and equipment existing on a lot when it is zoned “MR,” shall be enclosed as described herein. It shall be completely enclosed  within a building or within an area enclosed on all sides with a solid wall or solid fence of a height sufficient to screen the use from public view, but in no event less than six feet in height within one year after a lot is zoned MR. The phrase “used materials and equipment” includes vehicles, boats, or airplanes which are inoperable, wrecked, damaged or unlicensed, i.e. not currently licensed by the Department of Motor Vehicles. (Amended by Ord. No. 162,335, Eff. 6/6/87.)
 
   C.   Limitations.  (Amended by Ord. No. 146,030, Eff. 7/11/74.)  All required buildings and enclosing walls or fences shall be so constructed, the machinery and equipment shall be so installed and maintained, and the activity shall be so conducted, that all noise, vibration, dust, odor and all other objectionable factors, shall be confined or reduced to the extent that no annoyance or injury will result to persons residing in the vicinity.
 
   Whenever there is any difficulty in determining the application of these provisions to any specific case, the Department of Building and Safety shall make such determinations.
 
   D.   Area.  (Amended by Ord. No. 148,969, Eff. 12/16/76.)  No building or structure nor the enlargement of any building or structure shall be hereafter erected or maintained unless the following yards and lot areas are provided and maintained in connection with such building, structure or enlargement:
 
   1.   Front Yard – On all lots 100 feet in depth or less, 5 feet; on all lots in excess of 100 feet in depth, 15 feet. All front yards shall be suitably landscaped and maintained except for necessary driveways and walkways.
 
   2.   Side Yards – Side yards conforming to the requirements of the “R4” Zone (Section 12.11-C.2) shall be provided and maintained in connection with buildings erected and used principally for residential purposes.
 
   3.   Rear Yard – No rear yard shall be required for buildings erected and used exclusively for commercial or industrial purposes, a rear yard conforming to the requirements of the “R4” Zone (Section 12.11-C.3) shall be provided and maintained at the floor level of the first story used in whole or in part for residential purposes.
 
   4.   Lot Area – The lot area required of the “R4” Zone (Section 12.11-C.4) shall apply to buildings erected and used exclusively for dwelling purposes. For buildings other than those erected and used exclusively for dwelling purposes such requirements shall apply only to that portion of a building used for dwelling purposes.
 
   5.   Loading Space – As required by Section 12.21-C.6. Exceptions to area regulations are provided for in Section 12.22-C.
 
   E.   Fence Modification.  (Added by Ord. No. 146,030, Eff. 7/11/74.)
 
   1.   Authority of Director – The Director of Planning or his authorized    representative, upon application, may defer the wall or fence requirements of this section, for portions of walls or fences, in the following instances:
 
   a.  Where adjoining property is located in the M2 or M3 Zone and is developed with any of the uses first listed in Section 12.19-A or Section 12.20-A.
 
   b.   Where substantial fences, walls, buildings or geographic features are located on the subject property or on adjacent property and serve to enclose the subject use as well or more effectively than the wall or fence required by this section.
 
   2.   Compliance – Should the use, fence, wall or building providing justification for such modification be removed, such wall or fence shall be provided in compliance with this section within six months from the date of such removal.
 
   F.   Restriction.  (Amended by Ord. No. 173,268, Eff. 7/1/00, Oper. 7/1/00.)  For any lot designated as Public, Quasi-Public, Public/Quasi-Public Use, Other Public, or Open Space on the land use map of the applicable community or district plan; any lot shown on the map as having existing lakes, waterways, reservoirs, debris basins, or similar facilities; any lot shown on the map as the location of a freeway right-of-way; and any property annexed to the City of Los Angeles where a plan amendment was not adopted as part of the annexation proceedings:
 
   Any of the uses permitted by Subsection B of this section shall require prior approval in accordance with the provisions of Section 12.24.1 of this Code.