Preliminary plans shall conform with the following design standards:
(A) Streets, alleys, and easements.
(1) The same standards shall apply to private and public streets.
(2) The widths and arrangements of streets in new subdivisions shall conform with the street arrangement shown on the official street, school, and park plan adopted by the Commission on June 22, 1944.
(3) The minimum width for minor streets shall be 50 feet. When streets adjoin unsubdivided property a half-street not less than 30 feet in width may be dedicated, and whenever the subdivided property adjoins a half-street the remainder of the street shall be dedicated.
(4) Streets that are obviously in alignment with others already existing and named shall bear the names of the existing streets.
(5) The proposed street names shall be checked against duplication of street names and approved by the Post Office Department.
(6) Alleys are not permitted in residential areas but are required in the rear of all business lots and shall be at least 20 feet wide. A five-foot cut-off shall be made at all acute angle alley intersections.
(7) Where alleys are not provided, easements of not less than five feet in width shall be provided on each side of all rear lot lines, and along side lot lines where necessary, for conduits, storm and sanitary sewers, gas, and water mains. Easements of greater width may be required along or across lots where necessary for the extension of main storm and sanitary sewers and other utilities, and where both water and sewer lines are located in the same easement.
(B) Blocks.
(1) No block shall be longer than 1,500 feet between street lines.
(2) Where it is desirable to subdivide a tract of land, which because of its size or location, does not permit an allotment directly related to a normal street arrangement, there may be established one or more places. Such a place may be in the form of a court, a dead-end street, or other arrangement; provided, however, that proper access shall be given to all lots from a dedicated place (street or court). Such a place shall terminate in an open space (preferably circular) having a minimum radius of 55 feet. Except in unusual instances no dead-end street or place shall exceed 1,000 feet in length.
(C) Lots.
(1) All side lines of lots shall be at right angles to straight street lines, or radial to curved street lines unless a variation to this rule will give a better street and lot plan. Lots with double frontage should be avoided.
(2) No lot that is to be used for residential purposes shall contain an area less than required by the zoning ordinance.
(3) Where corner lots rear upon lots facing the side street, the corner lots shall have extra width sufficient to permit the establishment of front building lines on both the front and the side of the lots adjoining the streets. Extra width should be provided on all corner lots irrespective of whether they rear upon lots facing the side streets.
(4) Lots on all street intersections shall have a radius of 20 feet at the street corner.
(5) Panhandle lots as defined in § 154.03 are prohibited.
(D) Zoning requirements.
(1) All subdivisions shall conform with zoning requirements (Chapter 154).
(2) No subdivision will be approved that creates any violation of any zoning requirement.
(E) Building lines shall be shown on all lots. Such building lines shall not be less than required by the zoning ordinance. Restrictions requiring buildings to be set back to such building lines shall either be shown on the plat or shall be contained in a separately recorded instrument and referred to on the plat.
(F) Character of development.
(1) The Commission shall confer with the subdivider regarding the type and character of development that will be permitted in the subdivision, and may agree with the subdivider as to certain minimum restrictions to be placed upon the property to prevent the construction of substandard buildings, and control the type of structures, or the use of the lots which, unless so controlled, would clearly depreciate the character and value of the proposed subdivision and of adjoining property.
(2) Criteria used by the Commission in the approval of a subdivision in the H Historic District shall include proposals for restrictions or covenants insuring that the design of structures harmonize with those nearby.
(3) Restrictions shall be shown on the plat or contained in a separate recorded instrument and referred to on the plat.
(G) Parks, school sites, and the like.
(1) Consideration shall be given to suitable sites for schools, parks, playgrounds, and other common areas for public use so as to conform to the recommendations of the Commission in its adopted plan of the village.
(2) Any provisions for schools, parks, and playgrounds should be indicated on the preliminary plan in order that it may be determined when and in what manner such areas will be dedicated or acquired.
(H) Easements along streams. Whenever any stream or important surface drainage course is located in an area that is being subdivided, the subdivider shall dedicate an adequate easement along each side of the stream for the purpose of widening, deepening, sloping, improving or protecting the stream or for drainage, parkway, or recreational use.