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�t r37$7 <br /> Page 2 of 3 <br /> Sec. 78-�685. -Masstng standards. <br /> (9) Non-industrisl zoning districts. Excepf for pance/s zoned industrial, a/!lots in!he <br /> stormwater quality overfay distrrct that have a gross acr�eage of less than twa acres <br /> shali comply with tfre foflowing massing standards for structu►�es. <br /> a. Maximum tota!footprints allowed. <br /> 9. On tots equal to or greater than 1 D,000 squane feef in area, the tofal <br /> combined foofprmts of a!I principal and accessory structures sha!!not <br /> exceed 15 peresnt of the gross lof area. <br /> 2. On lots of less than �0,040 squar�feet in area, the to#al combined <br /> footprints of all principal and accessory structur+es shal!not exceed 1,500 <br /> square feet. <br /> b. Calculation of massing. The following shall be included in the calcu/ation of the <br /> total combined faotprrnts by structunes. <br /> 1. All ydofed sfructuries mor� than six feet above grade level. <br /> 2. Tennis courts, pafios, decks, and all similar open structures when parfially <br /> or fully enclosed hy fences, railings or walls which extend more than six <br /> feet above gr�de Ievel(�f any portion of such structures extends more fhan <br /> six feet above grade level, the entire structure shaN count toward!ot <br /> coverage). <br /> Sec. 78-170a. - Spec�c tier regulations. <br /> Per fhe o�cial stormwafer quality overlay district map, each property in fhe <br /> sto�mwater qualify profection ove►iay district is assigned to a protection tier based on its <br /> r�elative distance to receiving waters. This protection tier dictates the specifrc protection <br /> measures thaf must be implemented. <br /> (9) Tier 1 parcels. Hardcover sha/l not exceed 25 per�ent of the gross lot area. <br /> Sec. �8-136. -Residential driveways, approaches and turnaround. <br /> (a) pne driveway approach shatl be allowed from up to two singfe residential par�els of <br /> land to the same mad, provided�hat appropriate easements exist between parties <br /> sharinQ the drrveway snd driveway approach. Paricels having fronfage on more than <br /> one public road sha11 be allowed a driveway app�sch to one public road. <br /> (b) Residential driveway approach shall not exceed 20 fset in width at the intersected <br /> rrght-0f-way line. <br /> (c) The fotal wialth of drrveway approaches to up to hnro single parcels of land from a <br /> single road shall not exceed 20 feet. <br /> (d) A curb cut shalt not exceed the width of fhe driveway approach at the pr�operty line <br /> 6y mor�e than fen feet. <br /> (e) No portion of a driveway approach, except the curb retum, shall be canstructed <br /> within !00 feet of a comer. <br /> (f� For nesidences constructed after July 25, 1985, the driveway spproach and fhat part <br /> of the driveway and turnarounds which drain to the road shal!be paved with <br /> bituminous concrete blacktop or equivalent paving. Whe�it has been determined <br /> by the city`s public service director thaf driveway and/or drrveway approach existing <br /> on July 25, 9986, is causing a maintenance problem on the road, including but not <br /> limited to the washing of d�rt and gravel into the road, the public services director <br /> shall order that the property owner pave such portion of fhe drrveway and/or <br /> driveway approach as is necessary to remove the maintenance problem. Portland <br />