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c. Authorized Accessory Commercial Land Uses. In addition to <br />t ose uses specifically allowed within the respective zoning <br />district(s) of the Planned Residential Development, accesso- <br />ry commercial establishments which meet the following <br />criteria and standards may be permitted upon approval by the <br />Board of County Commissioners at the time of special excep- <br />tion approval. The following regulations are not intended <br />to be applicable to home occupations. <br />i. Minimum Number of Dwelling Units Required for Accessor <br />Commercial Development; Maximum Size of Commercial <br />Areas. No accessory commercial establishment shall be <br />permitted within any Planned Residential Development <br />which is to contain less than two hundred (200) dwell- <br />ing units. Accessory commercial land areas may be <br />approved up to a maximum size of 125 square feet of <br />land area (including areas for parking and open space) <br />per dwelling unit within the PRD. The total land area <br />of accessory commercial areas with any PRD shall not <br />exceed three (3%) percent of the gross area of the PRD. <br />ii. Allowable as Accessory Commercial. Only uses allowable <br />within the neighborhood commercial zoning district <br />shall be allowed as accessory commercial uses within a <br />PRD. <br />iii. Minimum Open Space Requirements for Accessory Commer- <br />cial Areas. AT accessory commercial areas within PRD <br />shall maintain a minimum of thirty (30%) percent of the <br />land area allowed in paragraph "i", above, as permanent <br />open space. <br />iv. Location of Accessory Commercial Areas. Such accessory <br />commercial areas shall be located no closer than two <br />hundred (200) feet to any boundary of the PRD. Where <br />more than one type of accessory commercial establish- <br />ment is proposed, such uses shall be grouped, arranged <br />and designed for pedestrian convenience and vehicular <br />access. Parking areas shall be combined where such <br />combination will result in substantial improvement in <br />public convenience and vehicular circulation. <br />v. Accessory Commercial Uses Contained Within a Residen- <br />tial Structure. Accessory commercial activities may be <br />permitted to locate within multi -family residential <br />structures provided that the total floor area contained <br />therein does not exceed fifty (50%) percent of the <br />gross residential floor area of the structure, and that <br />such activities are conducted on the ground floor only. <br />vi. Enclosure. All authorized accessory commercial activ- <br />ities shall be conducted entirely within an enclosed <br />building with no outside display or storage. No public <br />address system or other devices for making announce- <br />ments or playing music shall have speakers mounted <br />outside of such buildings or be audible beyond any lot <br />line of the building site on which the facility is <br />located. <br />vii. Limitations on Signs. Signs shall be permitted for <br />purposes of identification only, and shall be limited <br />to one (1), not exceeding ten (10) square feet in <br />surface area. Where more than one (1) such establish- <br />ment is located in the same building or on the same <br />premises, a single sign shall be permitted for each <br />use. All signs shall be mounted flat against the <br />principal building. <br />viii.Applicability of Other Zoning Regulations. All other <br />-4- <br />