A. Setbacks. In a residential zone, yards shall be at least one-half the height of the principal structure. In any zone, yards greater than the standard of the zone in which the use is located may be required;

B. Limitations on access to lots and on openings to buildings. The city may limit or prohibit vehicular access from a conditional use to a residential street not designated as an arterial street on an officially adopted street plan, and it may limit or prohibit openings in sides of a building or structure permitted as a conditional use within 50 feet of a residential zone if such openings will cause glare, excessive noise, or other adverse effects on adjacent residential properties;

C. Utility substation or pumping substation. The minimum lot size of the zone in which a public utility facility is to be located may be waived only on finding that the waiver will not result in noise or other detrimental effect on adjacent property. No equipment storage shall be permitted on the site in a residential zone. Such uses shall be fenced and provided with landscaping as found necessary.