No land shall be used or structure erected where the land is unsuitable for such use or structure by reason of flooding, concentrated runoff, inadequate drainage, adverse soil or rock formation, unfavorable topography, low bearing strength, erosion susceptibility, or any other feature likely to be harmful to the health, safety, prosperity, aesthetics, and general welfare of this community. The County Planning and Zoning Committee, in applying the provisions of this section, shall specify in writing the particular facts upon which it bases its conclusion that the land is not suitable for certain uses. The applicant shall have an opportunity to present evidence contesting such unsuitability if he so desires. Thereafter, the County Planning and Zoning Committee may affirm, modify, or withdraw its determination of unsuitability.

All lots shall abut upon a public street, and each lot shall have a minimum frontage of 33 feet.

No zoning permit shall be issued for a lot which abuts a public street dedicated to only a portion of its proposed width if the lot is on that side of the roadway from which the required dedication has not been secured.

Only those principal uses specified for a district and their essential services shall be permitted in that district.

Only one principal structure shall be located, erected or moved onto a lot, except in the following districts: A-1, A-1(15), A-2, B-1 and R-3. Exception: Residential condominiums, where permitted, may have multiple dwelling units on a single parcel.

Customary accessory uses and structures are permitted in any district. Accessory structures shall not consist of truck bodies or trailers, buses, recreational vehicles, shipping containers or mobile or manufactured homes. An accessory structure may not be constructed or placed in any residential district until its principal use or structure is present or under construction; both the principal structure and accessory structure may be commenced at the same time. A special exception must be granted to place an accessory structure with no principal structure. Residential and public and semipublic accessory uses shall not involve the conduct of any business, trade, or industry, except that in a residential district home occupations and professional home offices are permitted.

Conditional uses and their accessory uses are considered as special uses requiring review, public hearing, and approval by the County Planning and Zoning Committee in accordance with § 405-21 of this chapter.

The regular outside parking of more than one truck, other than panel or pickup trucks, or of other vehicular equipment, which exceeds 30 feet in length shall be prohibited in all residential districts.

Unclassified or unspecified uses shall not be permitted or conditional. Such uses may be allowable with issuance of a special exception permit.

Temporary uses, such as real estate sales field offices or shelters for materials and equipment being used in the construction of a permanent structure, are permitted upon obtaining a zoning permit from the Planning and Zoning Department. Such temporary uses shall not exceed a period of two years.

If space and soil conditions are adequate, private on-site waste treatment systems (POWTS) must be placed on the same parcel as the structure(s) served by the POWTS.

It shall be unlawful for any person to place, locate, or park any manufactured home in any district other than a B-1 District site conducting such home sales, unless the appropriate permits have been issued.

Mobile towers are a conditional use in all zoning districts.

Setbacks from navigable waters. All buildings and structures, stairways, walkways, piers and patios shall be set back at least 75 feet from the ordinary high-water mark (OHWM) unless otherwise specified by Chapter 370, Floodplain Zoning, or Chapter 396, Shoreland, Wetland and Habitat Protection, of this Code.

Setbacks from access easements. The setback from private roads and easements serving more than one residence or parcel shall be 30 feet from the described easement; in case of an easement that does not have a legal description, 30 feet from the nearest point on the edge of the traveled way.

Corner lots. Corner lots shall have two front yards, and a rear yard shall be provided opposite the front yard of the street from which the building or structure obtains its primary access.

Fences, hedges, and certain accessory structures.

Maintenance and use of setback area. Any such required setback area shall be kept clean and free from the accumulation of debris and refuse. Such required setback areas shall not be used for the storage or display of equipment, products, vehicles, or other materials.

Maximum height. In any district, no buildings or structures shall be erected or structurally altered to a height in excess of that specified by the regulations for that district.

Exceptions. The following shall be excepted from regulation of all districts:

Increase permitted. Subject to the approval of a conditional use permit and including any conditions placed by the Planning and Zoning Committee and Airport Commission as applicable:

Maximum ground coverage permitted. The maximum total ground coverage of the principal building and all accessory buildings and structures shall not exceed that specified by the regulations for the district in which such buildings are located.

Minimum dwelling size. The minimum livable floor area of any dwelling unit shall include only livable floor space, as measured from outside of wall to outside of wall, and may also include minimum structure widths, as provided for in individual districts.

Lot size.

In districts where recreational vehicles are a permitted use, a self-contained recreational vehicle may be placed on an individual lot without a permit, provided that it is not a permanent installation, remains mobile, and is licensed for highway use.

General regulations.