A. 
This district is intended for application to areas which are designated by the general plan or any applicable specific plan to be held in reserve for future urban expansion, including lands where Williamson Act contracts have not yet been canceled.
B. 
The purposes of this district are to preserve the availability of agricultural and vacant land required for future urban expansion, and to prevent the premature development of lands where the range of municipal-type services required by the general plan are not yet available. When such services are available, the property should be rezoned to the appropriate general plan designation.
(Prior code § 174.01)
The following uses shall be permitted in UR Districts:
A. 
Grazing and the raising of field crops, fruit and nut trees, vines, vegetables, horticultural specialties, livestock and poultry;
B. 
Flood control channels; water pumping stations and reservoirs; irrigation ditches and canals and ditch and canal rights-of-way settling and water conservation recharging basins; parkways; and recreation areas and facilities;
C. 
A one-family dwelling in areas designated by the general plan for low density or medium density, provided that the site meets the property development standards and other requirements of that residential zoning district which is most appropriate for the general plan density designation involved;
D. 
Incidental and accessory structures and uses located on the same site as a permitted use;
E. 
Other uses which are added to this list according to the procedure in Section 17.16.020.
(Prior code § 174.02)
Administrative approval shall be required for the following uses:
A. 
Incidental and accessory structures and uses as defined in Section 17.04.080, located on the same site as a use permitted by administrative approval or conditional use;
B. 
A second housing unit attached to an existing one-family residence, in accordance with the provisions of Chapter 17.80;
C. 
Other uses which are added to this list by the planning commission according to the procedure set forth in Section 17.16.020.
(Prior code § 174.03)
The following uses may be permitted in accordance with the procedures of Section 17.24.050(A) and Chapter 17.112: uses which are added to this list according to the procedure in Section 17.16.020.
(Prior code § 174.04)
A. 
Whenever a new use as listed under Section 17.24.020 is to be established in the UR District, the planning commission shall designate a zoning district classification for such use which is consistent with the general plan. Such use shall comply with the regulations of such designated district as if the use was actually proposed within such district. Such action shall be permissive for uses listed under Section 17.24.040.
B. 
No conditional use shall be permitted and no process, equipment or materials shall be used which are found by the commission to be objectionable to persons living or working in the vicinity or injurious to property, crops, livestock or poultry in the vicinity by reason of odor, fumes, dust, smoke, cinders, dirt, refuse, water-carried wastes, noise, vibration, illumination, glare or unsightliness or to involve any hazard of fire, explosion or toxic chemicals.
(Prior code § 174.05)
A. 
Distance Between Structures. The minimum distance between a structure used for human habitation and another structure shall be 10 feet, except that such minimum distance shall be 25 feet from a structure housing livestock or poultry.
B. 
Signs. No sign or outdoor advertising structure of any character shall be permitted except as prescribed in Chapter 17.64.
C. 
Off-Street Parking and Off-Street Loading. Off-street parking and off-street loading facilities shall be provided as prescribed in Chapter 17.76.
(Prior code § 174.06)
All uses shall be subject to the general provisions and exceptions prescribed in Chapter 17.16.
(Prior code § 174.07)