The C-4 zone is intended solely to facilitate development of parcels which have been developed with a mix of commercial uses on existing small lots within two specifically defined areas of the city prior to the adoption of this title. The zone will not be applied to other land within the city. (Ord. 376 (part): Ord. 336 § 6.21A.000, 1977).

Permitted uses in the C-4 zone:
Retail business establishments: All uses to be conducted entirely within a building with no outside storage, sales or display permitted:
A. All uses listed as permitted uses within the C-1 zone as set forth in Section 17.44.010;
B. Retail furniture store;
C. Household appliance store;
D. Auto parts store. (Ord. 376 (part): Ord. 336 § 6.21A.010, 1977).

The following uses are permitted in the C-4 zone subject to the issuance of a conditional use permit:
A. Uses set forth in Section 17.46.010 as permitted uses in the C-2 zone.
B. Uses set forth in Section 17.46.020 as uses permitted with a conditional use permit in the C-2 zone.
C. Uses set forth in Section 17.48.010 as uses permitted with a conditional use permit in the C-3 zone.
D. Uses set forth in Section 17.48.020 as used permitted with a conditional use permit in the C-3 zone. (Ord. 581 § 30, 1988; Ord. 376 (part): Ord. 336 § 6.21A.020, 1977).

Height regulations in the C-4 zone:
The maximum height for principal buildings and structures shall be thirty feet, and the maximum number of stories shall be two, with the following exception:
With a use permit the maximum allowable height may be increased up to fifty feet, and the maximum number of stories may be increased up to four. (Ord. 555 § 5, 1986: Ord. 376 (part): Ord. 336 § 6.21A.030, 1977).

The minimum area for each lot in the C-4 zone shall be seven thousand square feet. (Ord. 376 (part): Ord. 336 § 6.21A.040, 1977).

The minimum lot width in the C-4 zone shall be fifty feet. (Ord. 376 (part): Ord. 336 § 6.21A.050, 1977).

No building or structure shall hereafter be erected or enlarged in the C-4 zone unless the following setbacks are provided and maintained:
A. Front. Building frontages shall abut the existing right-of-way, except as follows:
1. When adjacent to a residential zone, a building frontage shall not be less than that required for the residential zone;
2. When parcels are fifty feet or over in width, thirty percent of the building frontage shall be set back a minimum of five feet from the existing right-of-way;
3. When an unsafe sight-distance for motorists would result.
B. Rear. There shall be a rear setback of not less than ten feet.
C. Interior Side. None required except ten feet when adjacent to a residential zone.
D. Street Side. Building frontage shall abut the existing right-of-way, except as follows:
1. When adjacent to a residential zone, a building frontage shall not be less than that required for the residential zone;
2. When parcels are fifty feet or over in width, thirty percent of the building frontage shall be set back a minimum of five feet from the existing right-of-way;
3. When an unsafe sight-distance for motorists would result.
E. Specified Streets. Front, side, street side or rear setbacks required for lots abutting a highway or street for which rights-of-way are established by adopted specific plans shall be measured from the adopted plan line(s) or the property line, whichever provides the greater setback. (Ord. 596 §§ 1, 2, 1988; Ord. 376 (part): Ord. 336 § 6.21A.060, 1977).

The C-4 zone is restricted to certain specified areas for the purposes specified in Section 17.50.010. (Ords. 376 (part): Ord. 336 § 6.21A.070, 1977).

Off-street parking regulations in the C-4 zone:
A. One on-site parking space shall be provided for each two hundred fifty square feet of gross floor area.
B. In lieu of the requirements of subsection A, a fee, as set by resolution of the council, based on the number of square feet of gross floor area may be paid to the city parking lot fund to establish off-street parking for the C-4 zone. All such city parking lots funded by the fees received pursuant to this section shall be located within or immediately adjacent to the C-4 zone. (Ord. 376 (part): Ord. 336 § 6.21A.080, 1977).