After the planning commission of any city or village shall have lawfully adopted a master plan for the physical development of the municipality or of 1 or more major sections or divisions thereof, it shall have the power to make or cause to be made and certify to the legislative body of such municipality, from time to time, detailed and precised plats, each showing the exact location of the proposed future outside lines of 1 or more new, extended or widened streets, avenues, places or other public ways, or of 1 or more parks, playgrounds or other public grounds or extensions thereof shown on such adopted master plan. At the time of each such certification to the legislative body, the commission shall transmit an estimate of the time period within which the land acquisitions for public use indicated on the certified plat should be accomplished. The making or certifying of such a plat by the commission shall not in and of itself constitute or be deemed to constitute the opening and establishment of any street or the taking or acceptance of any land for any of the aforesaid purposes.

     The legislative body of any city or village may by ordinance adopt any such precised plat certified to it by the planning commission as provided in section 1: Provided, That notice of time and place when and where it shall be considered for final passage shall be sent by mail to the record owners of land located within or abutting on the new lines of such proposed streets, ways, places, parks, playgrounds or other public grounds or extensions thereof designated on the plat. Any modification of such certified plat before passage of the adopting ordinance, and any amending ordinance originating in the legislative body shall be submitted to the planning commission for its approval: Provided, That in case of disapproval the commission shall communicate its reasons therefor to the legislative body which shall thereafter have the power to overrule such disapproval by a recorded vote of not less than 2/3 of its entire membership. Failure of the planning commission to report on any such modification or amendment within 30 days shall be deemed to constitute an approval thereof. The adoption of any such certified plat by ordinance, or by amending ordinance, shall not in and of itself constitute or be deemed to constitute the opening or establishment of any street or the taking or acceptance of any land for any of the aforesaid purposes.

     Amendments or modifications to such certified plats, in conformity with lawfully adopted changes, or additions to the adopted master plan may be made and certified by the commission to the legislative body, and ordinances embodying amendments to or changes in such certified plats may be adopted by the legislative body, in accordance with the procedure prescribed by law for the enactment of municipal ordinances: Provided, That notice of the time and place when and where it shall be considered by final passage shall be sent by mail to the record owners of land located within or abutting on the lines of proposed streets, ways, places, parks, playgrounds, or other public grounds. Any such proposed amendment or change shall be submitted to and approved by the planning commission: Provided, That in case of disapproval the commission shall communicate its reasons to the legislative body which shall have the power to overrule such disapproval by a recorded vote of not less than 2/3 of its entire membership. Any plat of a street, park, playground, or public ground certified by the planning commission to the legislative body under this act shall be deemed approved by the commission without further submission thereof to said commission.

     For the purpose of accomplishing a coordinated, adjusted, and harmonious development of the municipality and its environs which will, in accordance with present and future needs, best promote health, safety, morals, order, convenience, prosperity, and general welfare, as well as efficiency and economy in the process of development; including, among other things, adequate provision for traffic, the promotion of safety from fire and other dangers, adequate provision for light and air, the promotion of the healthful and convenient distribution of population, the promotion of good civic design and arrangement, wise and efficient expenditure of public funds, and the adequate provision of public utilities and other public requirements, the legislative body of any city or village may provide by ordinance that no permit shall be issued for, and no building or structure or part thereof shall be erected on any land located within the proposed future outside lines of any new, extended or widened street, avenue, place or other public way, or of any park, playground or other public grounds or extension thereof shown on any such certified and adopted plat. Any such ordinance shall provide that the zoning board of appeals, if the municipality has such a board, or if not, that a board of appeals created for the purpose in such ordinance, shall have the power on appeal filed with it by the owner of such land to authorize the granting of a permit for and the erection of a building, or structure, or part thereof, within the lines of any such mapped street, park, playground, or other public ground in any case in which such board finds, upon the evidence and arguments presented to it on such appeal, (a) that the entire property of the appellant located in whole, or in part, within the lines of such mapped street, park, playground, or other public ground cannot yield a reasonable return to the owner unless such permit be granted, and (b) that, balancing the interest of the municipality in preserving the integrity of the adopted map, and the interest of the owner of the property in the use and benefits of his property, the granting of such permit is required by considerations of justice and equity. Before taking any such action, the board of appeals shall hold a public hearing thereon, at least 10 days' notice of the time and place of which shall be given to the appellant by mail at the address specified by the appellant in his appeal petition. In the event that the board of appeals decides to authorize a building permit and erection, it shall have the power to specify the exact location, ground area, height, and other details and conditions of size, character and construction, and also the duration of the building, structure, or part thereof to be permitted.

     The proposed future outside lines of streets, parks, playgrounds and other public grounds shown on any plat certified and adopted as hereinbefore provided, may for convenience be shown, wholly or in part, by appropriate symbols on any official map or other map of the city or village: Provided, That showing such lines on any map shall not in and of itself constitute or be deemed to constitute the opening or establishment of any street or the taking or acceptance of any land for any of the aforesaid purposes.