Unified Development Ordinance, 5th supplement, March 2018

Part 10A: Unified Development Ordinance City of Raleigh, North Carolina 8 – 8 Effective Date: March 6, 2018 Supp. No. 5 CHAPTER 8. ​SUBDIVISION & SITE PLAN STANDARDS | Article 8.3. ​Blocks, Lots, Access Sec. 8.3.1. Intent Article 8.3. Blocks, Lots, Access Sec. 8.3.1. Intent A. The intent of the maximum block perimeter and connectivity regulations is to provide a well-connected street network. B. Large blocks with limited connectivity discourage walking, contribute to street congestion and add driving distance that can negatively impact emergency services. New streets should be designed to consider future development. C. The access regulations are intended to provide a means for safe, efficient and convenient vehicular and pedestrian access within developments and between adjacent developments and to lessen traffic congestion. Pedestrian, bike and vehicular access should be safe, direct and convenient. D. Administrative design adjustments to the requirements of this Article may be appropriate where topographic changes are too steep, where existing buildings, streams or other natural or man-made obstructions or site layout of developed properties prevent cross access, where adjoining uses are incompatible or where strict compliance with this UDO would pose a safety hazard. E. A conditional use zoning applicant may in accordance with Sec 10.2.4 E.2 offer zoning conditions and supporting documents sufficient to demonstrate to the City Council that development plans submitted to the City will provide for safe, efficient and convenient vehicular, bicycle and pedestrian circulation. Sec. 8.3.2. Blocks A. Block Perimeters 1. Applicability The block perimeter standards apply to preliminary subdvision plans, final plats and site plans submitted in accordance with Sec. 10.2.5. and Sec. 10.2.8 unless modified by either an administrative design adjustment authorized in this UDO, or by a zoning condition contained in an adopted conditional use zoning ordinance . 2. Block Standards a. Residential blocks must have sufficient width to provide for 2 tiers of residential lots, except where single tier lots are required to accommodate single-loaded streets where across from a public park or open space, to allow for unusual topographical conditions or when adjacent to the outer perimeter of a subdivision. b. The following table establishes the maximum block perimeter and maximum length for a dead-end street by zoning district. In the event that a single block contains more than 1 zoning district, the most restrictive requirement applies. Block Perimeter (max) Dead-End Street (max) R-1, R-2, R-4, R-6: By Average Lot Size on Block 40,000+ sf 8,000' 1,000' 20,000 - 39,999 sf 6,000' 750' 10,000 - 19,999 sf 5,000' 600' 6,000 - 9,999 sf 4,500' 550' up to 5,999 sf 3,000' 400' R-10: By District R-10 2,500' 300' Mixed Use Districts DX-, -TOD 2,000' Not allowed RX-, NX-, CX-, OX-: up to 4 stories 3,000' 400' RX-, NX-, CX-, OX-: 5+ stories 2,500' 300' OP-, IX- 4,000' 500' Special Districts CM, AP n/a n/a IH 6,000' 400' MH 3,000' 400' CMP, PD 4,000' or based on master plan 400' or based on master plan