NAC 7382 D48 ,25 CORNELL UNIVERSITY LIBRARY GIFT OF Urban America, Inc. FINE ARTS PLATTING REGULATIONS The Approval of Plats and Other Requirements .City Plan Commission Detroit, Michigan ^ June, 1921 W& Cornell University Library The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924022699502 Detroit City Plan Commission EDWARD A. SCHILLING PRESIDENT WARD A. DETWILER VICE-PRESIDENT T. GLENN PHILLIPS CONSULTANT-SECRETARY JUDSON BRADWAY WALTER E. CAMPBELL DR. W. R. CHITTICK CHAS. H. MAHONEY WILL ST. JOHN W. T. SKRZYCKI EDWARD M. WALKER REGULATIONS FOR PLATTING FOREWORD The present Charter of the City of Detroit provides that the City Plan Commission shall have power to pass upon the acceptance of all plats of land within and for a distance of three miles beyond the limits of the city. It is intended that this pamphlet shall be a useful guide to owners, realtors, engineers and agents who expect to sub- divide acreage or lots within the above prescribed limits. By following these suggestions and co-operating with the Com- mission much time and effort may be saved by the subdi- vider. SECTION A— PRELIMINARY PLANS, SUR- VEY PRINTS AND FINAL PLATS A preliminary street and alley plan of the allotment in duplicate should be submitted to the City Plan Commission and be tentatively approved before final plats are prepared. This preliminary plan should be filed in the office of the Commission on or before Monday of each week if action is desired at the next Commission meeting held on Friday of each week at 11 :00 A. M. The scale of the preliminary plan is optional. The preliminary plan should show property lines, streets, names and widths thereof, the proposed width of lots, a nota- tion stating acreage in the proposed allotment and the name and address of the allotter or agent, and the registered engi- neer or surveyor. After the preliminary plan has been tentatively approved, the allotter, agent or engineer may proceed with the final plats, and when acted upon and approved by the Commission the certificate of approval is put upon them. A satisfactory information print, showing all survey points, lines and. angles as found on the ground and also as given in deed records, and the location of all trees eight inches or over in diameter within the street lines, and if requested, contours and water courses, shall be filed in the office of the Commission before the final plats are approved. All final or record plats shall be drawn upon sheets 18" x 24" in size, and to a scale of not smaller than two hundred feet (200') to one inch. (See Auditor General's Re- quirements, which may be obtained by written request to Lansing, Michigan.) The owner or agent shall file with the Commission as a permanent record either one of the final plats or a photostat reproduction thereof, 17" x 21" in size. SECTION B— GENERAL REQUIREMENTS Major or traffic streets shall be not less than sixty feet (60') in width and the Commission may require varying widths in excess of sixty feet (60'), but ordinarily not exceeding one hundred and six feet (106'). Minor or residence streets shall be fifty feet (50') or more in width. Accepted boulevards shall be one hundred feet (100') or more in width. All streets shall be continuous or in alignment with exist- ing streets at the same or greater width, unless variations be deemed advisable by the Commission. In general, streets shall be platted a sufficient distance apart to allow for two tier of lots, with an alley or easement between and with cross streets at intervals of not less than 660 feet nor more than 880 feet, except where the Commis- sion deems existing conditions justify a variation from this requirement. Degree and length of curves, and tangent bearings for both sides shall be given for curvilinear streets. Tangent, radius and central angles at all corners shall be given. MONUMENTS— Iron rods or pipes 1" in diameter, and 18" long shall be set at all boundary corners and shall be set in conformity with the requirements of the City Engineer. It is recommended that rods or pipes be set in concrete. No plats will be finally accepted by the City until the streets have been rough graded and cleared of all obstruc- tions and depressions, subject to the approval of the Depart- ment of Public Works. Grades may be established by the City Engineer when required. LOTS — It is recommended that all residence lots should be not less than forty feet (40') wide by one hundred and twenty feet (120') deep, except where this requirement would impose a hardship on the allotter, in which event lots as near as possible to this minimum requirement shall be platted. Corner lots for residence purposes shall be of sufficient width to permit a side street set-back restriction of not less than fifteen feet (15'). All side lines of lots should be at right angles to straight street lines, or radial to curved street lines, unless a variation from this rule will give a better street and lot plan. SET-BACK LINES— The minimum set-back or building line shall be fifteen feet (15') from the street line except busi- ness lots on which no set-back is required, and more than fifteen feet (15') may be required where depths of lots and neighborhood conditions warrant it. Building lines shall be shown and marked on the filing or record plat by a brown line. The Commission shall determine which is the more suit- able for an allotment, an easement or an alley system. The minimum width of alley in the rear of residential lots shall be eighteen feet (13'). No alley less than twenty feet {20') in width will be allowed in the rear of business lots. Easements, for public utilities, shall be not less than six feet (C) wide on each side along the rear of lots and in other locations where necessary, and shall be noted on the filing or record plat. STREET TREES — The size, location and variety of street trees on all plats shall conform to the requirements of the Commission, established in conjunction with the Depart- ment of Parks and Boulevards. PLAYGROUNDS OR PARKS— In residential allot- ments, the Commission may request the allotter to dedicate for playgrounds or parks an area which it deems adequate for the children and residents of the allotment. USE — Before the Commission will approve the final or record plat, it will require that the use restrictions be in accord with the general zoning plan for the City of Detroit. PROCEDURE The following table gives the usual order of the various steps and approvals to be obtained by the owner or agent of plat: 1st — City Plan Commission, Tentative plat and 4 final plats. 2nd — City Treasurer — Regarding taxes. 3rd — Corporation Counsel — Regarding title. 4th — City Engineer — Regarding plat. 5th — Common Council — Regarding plat. 6th — Department of Public Works — Regarding plat. 7th — Wayne County Treasurer — Regarding taxes. 8th — Wayne County Auditors — Regarding plat. 9th — State Auditor General — For record. Entire set of Plats to be forwarded, of which one will be placed on record in Lansing, one will be sent by Auditor General to County Register of Deeds, and remaining two will be returned to Owner or Agent, who must file one each with City Engineer and City Assessor respectively. PUBLICATIONS OF THE DETROIT CITY PLAN COMMISSION Report No. 1. City Tree Planting, by T. Glenn Phillips, Landscape Architect. First edition, 1910; re- vised edition, 1914. Reprinted June, 1921. Report No. 2. A Center of Arts and Letters; report to the Mayor of Detroit from a joint committee con- sisting of representatives of the Museum of Art, the Library Commission, the City Plan and Improvement Commission, the School of Design, the Orchestral Association, and the Michigan Chapter of the American Institute of Architects; together with plans and a re- port by Edward H. Bennett and Frank Miles Day, November, 1913. Reprinted June, 1921. Report No. 3. Preliminary Report on a programme for the competition to select an architect to design the James Scott Fountain; by E. J. A. Du- quesne, November, 1913. Report No. 4. Programme of Competition for the selection of architect to design and supervise the con- struction of the James Scott Fountain; by E. J. A. Duquesne, professional adviser, Febru- ary, 1914. Report No. 5. Report of progress to the Mayor of Detroit on the results of the competition to select an architect to design the Scott Fountain. Report No. 6. Detroit Suburban Planning. Report to the City Plan and Improvement Commission by Arthur Coleman Comey, based on the Pre- liminary Plan for Detroit by Edward H. Ben- nett; May, 1915. Reprinted June, 1921. Report No. 7. Report on Conditions in Detroit by Prof. Frederick Law Olmsted. June, 1915. Re- printed June, 1921. Report No. 8. A Preliminary Plan for Detroit by Edward H. Bennett, Architect. June, 1915. Reprinted June, 1921. Report No. 9. Excess Condemnation. March, 1919. Report No. 10. Dix - High - Waterloo - Thorofare. October, 1919. (Out of print.) Report No. 10-A. Charter Provisions for the City Plan Com- mission. April 1, 1919. Report No. 11. Excess Condemnation Act. November, 1919. Report No. 12. A Building Zone Plan for Detroit. November, 1919. Report No. 13. Regulations for Platting. June, 1921. Cornell University Library NAC 7382 .D48A25 3 1924 022 699 502