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 or bearing strength, erosion susceptibility, or any other feature likely to be harmful to the health, safety, prosperity, aesthetics, and general welfare of Village residents. The Village Building Inspector, in applying the provision of this section, shall, in writing, recite the particular facts upon which he bases his conclusion that the land is not suitable for certain uses. The applicant shall have an opportunity to present evidence contesting such unsuitability if he or she so desires. Thereafter, the Village Board, after a recommendation by the Plan Commission, may affirm, modify, or withdraw the determination of unsuitability. Specific site restrictions include, but are not limited to, the following:
A. Private sewer and water. In any district where public sewerage or water service is not available, the width and area of all lots shall be sufficient to permit the use of a private on-site wastewater treatment system (POWTS) designed in accordance with Chs. SPS 383 and 385, Wis. Adm. Code, and a private water supply system (well) in compliance with Ch. NR 812, Wis. Adm. Code.
B. Outhouses prohibited. No outhouse or privy shall be erected.
C. All lots shall abut upon a public street for a frontage of at least 66 feet at the right-of-way, and those fronting on the radius of a cul-de-sac turnaround shall have a frontage of at least 40 feet.
D. Corner lots shall have two street yards.
E. All principal structures shall be located on a lot, and only one principal structure shall be located, erected, or moved onto a lot in single-family and two-family residential districts. 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, landscaping, or parking requirements or require a minimum separation distance between principal structures.
F. Accessory building location. No accessory building shall be erected, structurally altered, or placed on a lot so that any roofed or enclosed portion thereof is closer than 10 feet to the principal building on such lot, unless §
435-37C applies.
G. No building permit shall be issued for a lot which abuts a public street dedicated to only a portion of its proposed width and located on the side on which the required dedication has not been secured.
H. Lots abutting more restrictive district boundaries shall provide side and rear yards not less than those required in the more restrictive abutting district. The street yards in the less restrictive district shall be modified for a distance of not more than 40 feet from the district boundary line so as to equal the average of the street yards required in both districts.
I. Preservation of topography. To preserve the natural topography as much as possible, to protect against dangers and damage caused by human-made changes to the existing topography, and to avoid unsightly and hazardous exposed earth sections, no lot or portions of lots nor any parcels of land shall be excavated or filled unless the following conditions are met:
(1) If the difference in proposed grades between two contiguous lots within the required building offset areas along a lot line is to be not greater at any point than two feet, this difference in levels may be sloped toward or away from the lot line at a gradient of three feet horizontal to one foot vertical (3:1) and as soon as practical must be covered adequately with topsoil and sodded or seeded with mulch to prevent erosion, or a retaining wall of stone or other suitable masonry material shall be constructed to retain the higher ground. Within a single lot, any excavation or fill not exceeding two feet, and not involving an area in excess of 4,000 square feet, shall be subject to the aforesaid requirements.
(2) If a difference in proposed grades between two adjacent lots within the required building offset areas along a lot line is to be greater at any point than two feet, the following procedure shall be followed:
(a) No slope to be covered with sod, grass seed, or other natural plant material may exceed a gradient of three feet horizontal to one foot vertical (3:1).
(b) A slope protected by riprap construction may not exceed a gradient of one foot horizontal to one foot vertical (1:1).
(c) A difference in grades may be protected by a retaining wall, provided that the wall is engineered in such a manner as not to collapse. No retaining wall shall exceed four feet in height. A retaining wall may be stepped to achieve greater height. Each step of the wall shall be no more than four feet in height and shall be set back a minimum of two feet from the previous step.
(d) Approval of any of the aforesaid methods shall be obtained in the following manner:
[1] The applicant shall furnish a topographic plan with a maximum contour interval of one foot prepared by a registered professional engineer, architect, land surveyor, or landscape architect showing existing elevations on the subject lot and on adjacent lands within 25 feet of the area to be filled or excavated. The plan shall also show existing and proposed drainage patterns and existing soil types on the subject lot and on adjacent land within 25 feet of the area to be filled or excavated.
[2] The applicant shall furnish a plan showing a typical cross section of the proposed slope, riprap, or retaining wall; a planting or sodding schedule, and the proposed means of preventing erosion during construction. If a retaining wall is to be constructed, a registered professional engineer shall certify that the wall will not collapse.
[3] The Building Inspector shall transmit the applicant's plans to the Village Engineer for review and comment, and the permit shall be issued only after receipt of the Village Engineer's written report and approval.
[4] The applicant shall complete the proposed work in strict accordance with the approved plan and the time schedule specified in the permit.
(3) In every instance, no person, occupant, owner of land, or corporation shall remove or cause to be accumulated topsoil or excavated materials in any manufacturing, business, institutional, park, conservancy or residential district without the proper review and approval of an application for such removal or accumulation by the Village Board. Such removal or accumulation includes, but is not limited to, piles of materials which have been formed, accumulated, or pushed into mounds or piles and which obstruct views or pose a threat to the general safety or welfare of the community with the existence of trenches, holes, pits, or mounds caused by such removal or accumulation.
J. A buffer yard shall be created and maintained around all business and industrial districts which abut a residential, park, or institutional district and any multifamily residential district that abuts a single-family residential, two-family residential, business, or industrial district. Buffer yards shall screen such uses from adjoining lands in such a manner that:
(1) If a buffer yard is composed mostly of plants, the plants shall be of sufficient depth, height, and varieties as to provide dense visual screening within three years and during all seasons of the year. Existing healthy plants of desirable species may be used to meet the screening requirement.
(2) Where architectural walls or fences are used, sufficient landscaping shall be used in conjunction with such wall or fence to create an attractive view from the adjacent property.
(3) Buffer yards shall be used only for landscaping, required screening, drainage facilities, utilities, fences, walls, and earth berms. Required buffer yards may be located within required setbacks; however, structures, other than those mentioned above, and parking lots are not allowed in a buffer yard.
(4) Where a buffer yard is located next to a parking lot on the same site, the buffer screen shall be sufficiently opaque to prevent the penetration of headlight glare. Overhead lighting installed in or adjacent to a buffer yard shall not direct any rays onto adjacent properties.
(5) All landscaping shall be maintained by the owner or operator to the satisfaction of the Plan Commission.
(6) No signs shall be permitted on or in any part of the buffer yard.
(7) All buffer yards shall comply with the traffic visibility requirements set forth in §
435-39 of this chapter.