The regulations in this chapter shall be subject to the following interpretations and exceptions.

Essential services serving the City of Roseville shall be permitted as authorized and regulated by law and other ordinances of the municipality. Overhead or underground lines and necessary poles and towers to be erected to service primarily those areas beyond the municipality shall receive the review and recommendation of the Roseville Planning Commission to the City Council, and the review and approval, after public hearing, of the City Council. Such a review by the City Council shall consider abutting property and uses as they relate to easements, rights-of-way, overhead lines, poles and towers, and further shall consider injurious effects on property abutting or adjacent thereto and on the orderly appearance of the City.

The provisions of this chapter shall not be so construed as to interfere with the temporary use of any property as a voting place in connection with a municipal or other public election.

The height limitations of this chapter shall not apply to farm buildings, chimneys, church spires, flag poles, public monuments or commercial wireless transmission towers; provided, however, that the Board of Appeals may specify a height limit for any such structure when such structure requires authorization as a conditional use, and provided further the height of any such structure shall not be greater than an equal horizontal distance to any property line.

Any lot existing and of record on the effective date of this chapter may be used for any principal use permitted in the district in which such lot is located, other than conditional uses for which special lot area requirements are specified in this chapter, whether or not such lot complies with the lot area requirements, or requirements of this chapter. Such use may be made, provided that all requirements other than lot area requirements prescribed in this chapter are complied with, and provided that not more than one dwelling unit shall occupy any lot except in conformance with the provisions of this chapter for required lot area for each dwelling unit, and except as provided for in Article XVIII, § 370-62, in this chapter.

In calculating the area of a lot that adjoins an alley or lane, for the purpose of applying lot area requirements of this chapter, 1/2 the width of such alley abutting the lot shall be considered as part of such lot.

When yard requirements cannot reasonably be complied with, as in the case of planned developments in the multiple-family district, or where their application cannot be determined on lots of peculiar shape, topography or due to architectural or site arrangements, such regulations may be modified or determined by the Board of Appeals.

For the purpose of side yard regulations, a two-family, a row house, or a multiple dwelling shall be considered as one building occupying one lot. When more than one structure is involved on one zoning lot, the above requirement shall not negate the formula contained in § 370-61, pertaining to the distance spacing for multiple dwellings.

An open, unenclosed and uncovered porch or paved terrace may project into a required front yard for a distance not exceeding 10 feet, but this shall not be interpreted to include or permit fixed canopies, except that for purposes of this chapter, fixed canopies shall not include canopies constructed of canvas, plastic, fiberglass or similar material, together with the necessary upright supports, which are clearly designed and intended as a covering to permit use of such porch or terrace during the summer months.

Architectural features, not including vertical projections, may extend or project into a required side yard not more than 18 inches and may extend or project into a required front yard or rear yard not more than six feet.

For the purpose of this chapter, access drives may be placed in the required front or side yards so as to provide access to rear yards. These drives shall not be considered as structural violations in front and side yards. Further, any walk, terrace or other pavement serving a like function, and not in excess of nine inches above the grade upon which placed, shall, for the purpose of this chapter, not be considered to be a structure and shall be permitted in a required yard.