The use and height of buildings erected, converted, enlarged or structurally altered after the adoption of this chapter and the use of any land shall be in compliance with the regulations established herein for the district in which the land or building is located.

Nothing herein contained shall require any change in the plans, construction, size or designated use of any building or part thereof for which any permit has been issued before the effective date of this chapter or amendment thereto and the construction of which shall have been started within six months from the date of such permit.

No lot, yard, parking area, open space, building area or other space shall be reduced in area or dimension so as not to meet the provisions of this chapter.

No part of any lot, yard, parking area, open space, building area or other space required for a structure or use shall be included as a lot, yard, parking area, open space, building area or other open space required for another structure.

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 percolation rate or 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 City Building Inspector, in applying the provisions of this section, shall in writing recite the particular facts upon which he or she bases his or her conclusion that the land is not suitable for certain uses. The applicant shall have an opportunity to present evidence contesting such unsuitability if applicant so desires. Thereafter, the Plan Commission may affirm, modify, or withdraw the determination of unsuitability.

All lots shall abut upon a public street, and each lot shall have a minimum frontage as specified in this chapter.

All principal structures in single-family and two-family residential district shall be located on a lot, and only one principal structure shall be located, erected, or moved onto a lot. The Plan Commission may permit more than one structure per lot in other districts where more than one structure is needed for the orderly development of the parcel. Where additional structures are permitted, the Plan Commission may impose additional yard requirements, landscaping requirements, or parking requirements, or require a minimum separation distance between principal structures.

Principal uses. Only those principal uses specified for a district, its essential services, and the following uses shall be permitted in that district.

Accessory uses and structures are permitted in any district but not until the principal structure is present or under construction. Accessory structures are permitted on the rear yard and side yards only. Residential accessory uses shall not involve the conduct of any business, trade, or industry except home occupations and professional home offices as defined in this chapter.

Accessory buildings - lot coverage. Accessory buildings which are not a part of the main building shall not occupy more than 30% of the area of the required rear yard and shall not exceed 900 square feet in area; shall not be more than 15 feet and six inches high and shall not be nearer than four feet to any lot line.

Accessory uses and structures shall be located on the same lot as the principal use; however, accessory uses and structures may be located on a lot that is contiguous to and under the same ownership as the lot on which the principal use is located. Lots separated by a street, alley or railroad are not deemed to be contiguous.

Conditional uses and their accessory uses are considered as special uses requiring review, public hearing, and site approval by the Marinette Plan Commission in accordance with Article XXXI of this chapter.

Temporary uses, such as banners, sales tents, Christmas tree sales, seasonal sale of farm produce, contractor's office and construction equipment shells, and temporary shelters, may be permitted by the Plan Commission.

Public and quasi-public buildings. Churches, schools, hospitals, sanitariums and other public and quasi-public buildings may be erected to a height not exceeding 75 feet or seven stories, provided the front, side and rear yards required in the district in which such building is to be located are each increased at least one foot for each foot of additional building height above the height limit otherwise established for the district in which such building is to be located.

Essential services. Chimneys; cooling towers; elevator bulkheads; fire towers; monuments; penthouses; stacks; scenery lofts; tanks; water towers; ornamental towers, spires; wireless, television, microwave radio relay structures; telephone, telegraph and power poles and lines, and mechanical appurtenances are hereby excepted from the height regulations of this chapter and may be erected in accordance with other regulations or ordinances of the City of Marinette.

Residences in the residential districts may be increased in height by not more than 10 feet when all yards and other required open spaces are increased by one foot for each foot which such building exceeds the height limit of the district in which it is located.

Where a lot abuts on two or more streets or alleys having different average established grades, the higher of such grades shall control only for a depth of 120 feet from the line of the higher average established grade.

With respect to a building extending from street to street on through lots, the requirements of this chapter for a rear yard may be waived if an equivalent open space on the same lot is otherwise provided and the setback requirement on both streets is complied with.

Every part of a required yard shall be open to the sky, unobstructed except for accessory buildings in a rear yard and the ordinary projections of sills, belt courses, cornices, and ornamental features projecting not more than 12 inches.

Open or enclosed fire escapes and fire towers may project into a required yard not more than five feet and into a required court not more than 3 1/2 feet, provided they be so located as not to obstruct light and ventilation.

Scope. This regulation applies to all solar installations within the City of Marinette.

Purpose. To protect neighboring landowners from undue solar reflectivity when installing solar systems, to regulate where they can be installed, and to regulate setbacks from solar systems.

Definitions specific to solar systems:

Permitted accessory use. Solar energy systems are a permitted accessory use in all zoning districts where structures of any sort are allowed, subject to certain requirements as set forth below. Solar carports and associated electric vehicle charging equipment are a permitted accessory use on surface parking lots in all districts regardless of the existence of another building. Solar energy systems that do not meet the following design standards will require a conditional use permit.

Plan applications. Plan applications for solar energy systems shall be accompanied by to-scale horizontal and vertical (elevation) drawings. The drawings must show the location of the system on the building or on the property for a ground-mount system, including the property lines.

Plan approvals, Residential R-1 and R-2 zones. Applications that meet the design requirements of this section shall be granted administrative approval by the Building/Zoning Official. Plan approval does not indicate compliance with Building Code or Electric Code.

Plan approvals, commercial zones. Applications that meet the design requirements of this section shall be routed through the Planning Commission approval process by the Building/Zoning Official. Plan Commission approval does not indicate compliance with Building Code or Electric Code.