The purpose of an industrial administration and research (I-R) district is to provide an environment exclusively for and conducive to the development and protection of modern, large scale administrative facilities, research institutions and specialized manufacturing organizations, all of a non-nuisance type.
(Ord. 296 § 19.1)
The principal permitted uses of land in an I-R district as follows unless modified by Section 40.19.040:
(a) 
Administrative, executive and financial offices.
(b) 
Laboratories: experimental, film or testing.
(c) 
Manufacturing, assembly or packaging of products from previously prepared materials, such as cloth, plastic, paper, leather or semiprecious metals or stones, but not including such operations as saw and planing mills, any manufacturing uses involving primary production of wood, metal or chemical products from raw materials.
(d) 
Manufacture of electric and electronic instruments and devices, such as television, radio and phonograph equipment.
(e) 
Manufacture of food products, pharmaceuticals and the like, but not including production of fish or meat products, sauerkraut, vinegar or the like, or the rendering or refining of fats and oils.
(f) 
Planned unit developments, subject to the provisions of Sections 40.32.010 through 40.32.110.
(g) 
Any other research or light manufacturing use determined by the planning commission to be of the same general character as the permitted uses.
(h) 
Agriculture, except the raising of fowls or animals for commercial purposes, or the sale of any products at retail on the premises.
(i) 
Sex-oriented entertainment businesses, subject to the requirements of Section 40.26.410.
(Ord. 296 § 19.2; Ord. 756 § 1; Ord. 1377 § 3; Ord. 1735 § 2)
The following conditional uses may be permitted in an I-R district:
(a) 
Public and semipublic, including public utility uses necessary and appropriate to the I-R district.
(b) 
Retail commercial uses such as restaurants and auto service stations, necessary to serve and appropriate to the I-R district.
(c) 
Any use which handles, stores or treats in any fashion hazardous materials and is not a B occupancy use per the provisions of the California Building Code.
(d) 
Drive-through facilities, subject to the provisions of Section 40.26.420.
(Ord. 296 § 19.4; Ord. 1377 § 4; Ord. 1739 § 8, 1994; Ord. 2113 § 1, 2003; Ord. 2677, 11/4/2025)
The following minimum area and yard requirements shall be observed for the I-R zoning district classification as designated on the zoning map, except where increased for conditional uses or as provided in Sections 40.27.040 through 40.27.070:
(a) 
Lot area. Twenty thousand square feet.
(b) 
Front yard. Twenty-five feet.
(c) 
Side yards. Twenty feet, except when abutting an R district or an A district designated for future residential development in the city master plan, then not less than fifty feet.
(d) 
Rear yard. Twenty-five feet, except when abutting an R district or an A district designated for future residential development in the city master plan, then not less than fifty feet.
(Ord. 296 § 19.6; Ord. 526 § 1)
(a) 
All uses permitted by this article, except for administrative, executive and financial offices, and permitted retail commercial uses, shall be subject to review in accordance with performance standards procedure in Sections 40.24.010 through 40.24.080.
(b) 
All uses shall be conducted wholly within a completely enclosed building, except for auto service stations, off-street parking and loading facilities and public utility substations.
(c) 
Manufacturing and industrial processes shall use only gas or electricity as a fuel and for power; provided, that oil burning equipment may be installed for standby purposes only.
(d) 
In any I-R district directly across the street from any R district or A district designated for future residential use in the city master plan, the parking and loading facilities shall be distant at least twenty feet from the street, and the buildings and structures at least fifty feet from the street.
(e) 
Site plan and architectural approval by the director or designee shall be required for all uses.
(f) 
Landscaping and screening shall be in accordance with the provisions of Section 40.26.250.
(Ord. 296 § 19.7; Ord. 894 § 2; Ord. 1627 § 31; Ord. 2390 § 2, 2012; Ord. 2677, 11/4/2025)