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Article 3: Base Zoning Districts <br /> Section 3.4: General Commercial Districts <br /> <br /> <br />Orange County, North Carolina – Unified Development Ordinance Page 3-30 <br /> <br /> <br />O/I O/RM <br />OFFICE / <br />INSTITUTIONAL OFFICE / <br />RESEARCH AND <br />MANUFACTURING <br />DIMENSIONAL AND RATIO STANDARDS <br />Lot Size, min. (square <br />feet) <br />R [1] None <br />NR <br />NR-CU 5,000 <br />PURPOSE <br />Lot Width, min. (feet) <br />R <br />NR-CU None <br />The purpose of the Office/Institutional (O/I) Office/Research and <br />Manufacturing (O/RM) District is to provide locations for medium <br />and high intensity office, service, institutional, and residential <br />research, and light manufacturing land uses in areas where <br />urban services are available or are to be made available as part <br />of the development process. This district is intended to provide <br />for employment centers near transportation routes. <br />NR 50 <br />Front Setback from <br />ROW, min. (feet) <br />R <br />NR - CU None <br />NR 25 <br />Side Setback, min. (feet) <br />R None <br />NR 10 [2] <br />APPLICABILITY NR - CU None [2] <br />This district will usually be applied where the following conditions <br />exist: <br /> <br />1. Site is located in areas designated by the adopted <br />Comprehensive Plan as Commercial Transition Activity Node or <br />Commercial-Industrial Transition Activity Nodes. <br /> <br />2. W ater and sewer mains are existing at the site or are to be <br />made available during the development process. <br /> <br />Rear Setback, min. <br />(feet) <br />R None <br />NR 10 [2] <br />NR - CU None [2] <br />Height, max. (feet) 35 [3] <br />DIMENSIONAL STANDARDS NOTES: <br /> <br />[1] R = residential, NR = non-residential, CU = conditional use. <br />[2] Required side and rear setbacks adjacent to residentially <br />zoned land shall be equal to the required side or rear setback of <br />the adjacent residential district. <br />[3] Two feet of additional height shall be allowed for one foot <br />increase of the required front and side setbacks. <br />Floor Area Ratio, max. <br />R - CU <br />NR .40 <br />NR-CU .45 <br />Required Open Space <br />Ratio, min. .55 <br />Required Livability <br />Space Ratio, min. R-CU .52 <br />Required Recreation <br />Space Ratio, min. <br />R .111 <br />R-CU .114 <br />Gross Land Area, <br />min./max. <br />(square feet) <br />R-CU 5,000/ <br />none <br />NR-CU 200,000/ <br />none <br />Required <br />Pedestrian/Landscape <br />Ratio, min. <br />NR <br />NR-CU .05 <br /> <br />O/I DISTRICT SPECIFIC DEVELOPMENT STANDARDS <br />1. Uses shall be restricted to those indicated for the O/I O/RM District in Section 5.2, unless a Conditional Use <br />(CU) or MPD-CZ District is approved (see Section 3.8). Additionally, non-residential uses are restricted <br />based on the Watershed Protection Overlay District in which the property is located. Refer to Section 4.2.3 <br />for land use restrictions. <br />2. Secondary uses are permitted in the O/RM district when the principal use type of the overall project is <br />Industrial (Light), Research Facility, or Research and Manufacturing. Secondary uses, as indicated in <br />Section 5.2, shall be limited to no more than 25% of the project’s square footage. <br />3. Development within the zoning district shall be subject to all applicable use standards detailed in Article 5 <br /> 10