Storage space for merchandise, materials, products, and equipment (except for vehicles in running order) shall be contained within a building having walls which are impervious to sight.

The entire lot shall be kept free from refuse, debris and junk.

No noise, fumes, smoke, dust, vibration and light shall be emitted from the premises which is deleterious to surrounding property values.

All gasoline service station pumps shall be set back at least 20 feet from all property lines.

No wall, fence, opaque hedge and screening material shall be placed in such a manner which would restrict the sight distance for vehicular traffic, in the public right-of-way.

All buildings shall be constructed in accordance with the adopted building, plumbing, electrical, mechanical and fire prevention standards.

Prior to the issuance of a building permit for any development within the zone, a site plan shall be submitted to and approved by the city in accordance with the provisions of Chapter 18.15 HMC, Administration and Enforcement.

In all zones which require a front setback, obstructions which will not afford automobile drivers a clear view of approaching vehicles or pedestrians at street intersections shall be prohibited within a triangular area formed by the street property lines and a line connecting them at points 25 feet from the point of intersection of said street lines.

Such obstructions which will not afford automobile drivers a clear view of approaching vehicles or pedestrians at driveway entrances shall likewise be prohibited within a triangular area formed by the street property line and the edge of the driveway, with a line connecting them at points 25 feet from the point of intersection of the driveway and the street.

All driveways and roadways fronting on or intersecting with State Highway 6 shall prohibit all obstructions which will not afford automobile drivers a clear view of approaching vehicles or pedestrians within a triangular area formed by the State Highway 6 street line and the intersecting street line or edge of the driveway, with a line connecting them at points 45 feet from the point of intersection of State Highway 6 and the street or driveway.

No fence, wall or continuous hedgerow within the front setback from any street as required in the applicable zone shall exceed a height of four feet. Fences, walls, and hedgerows at greater than the required minimum setback distance may be constructed to a height not to exceed eight feet. Under no circumstance shall any fence, wall or hedgerow be permitted which is in violation of HMC § 18.55.050.

All fences and walls shall be constructed of substantial material and the design and construction shall be consistent with the quality of dwellings and other improvements within the surrounding area. Construction of fences or walls which exceed six feet in height shall be subject to the standards and requirements of the International Building Code as adopted by Helper City.

Front yards and side yards of all buildings which front on public streets must be landscaped except that up to 25 percent of the front or side yard which faces on a public street may be devoted to driveways and off-street parking.

On lots where front and side yards are not required, no landscaping shall be required.

Setback. All permanent signs, including billboards and advertising signs, shall be set back from public streets a distance at least equal to the distance that buildings are required to be set back, except that canopy signs, projecting signs, marquee signs, and awning signs may project into the required setback as stated in Article I of Chapter 18.95 HMC.

Screening Requirements. Except in those zones where billboards are specifically permitted, all signs shall display thereon copy and images pertaining only to products or services sold on premises.

Permits Required. No billboard or advertising sign shall be erected or placed within the city, without first making application for and obtaining a building permit therefor. In addition, all signs located within 660 feet of the right-of-way line of a federally designated highway shall conform to the standards and regulations for such signs established by the state of Utah. Any approval or permits required by said regulations shall be in addition to the building permit hereinabove required and construction or placement of a sign shall not be commenced until all approvals and permits have been obtained.

A-Frame Sign Permitted. One A-frame sign, each face of which is no larger than 24 square feet, will be permitted on city property at each business location in the central commercial and general commercial zones without requiring a building permit. Said sign must be removed from public property after business hours. No signs may obstruct the normal passage of pedestrian traffic on public sidewalks at any time.