Unified Development Ordinance, 4th supplement, September 2017

Part 10A: Unified Development Ordinance City of Raleigh, North Carolina 3 – 13 Effective Date: September 01, 2013 Supp. No. 4 Article 3.3. ​​Height Requirements | CHAPTER 3. ​MIXED USE DISTRICTS Sec. 3.3.3. Building Massing Standards Sec. 3.3.3. Building Massing Standards A. Intent The intent of the building massing regulations is to manage the impact of tall buildings located near the public right-of-way. Stepbacks are intended to provide access to light and air at street level, mitigate wind impacts, produce a consistent street wall and visually reduce the perceived scale of a building to avoid a canyon effect. B. Stepbacks Buildings of 8 or more stories are required to place a stepback above the 3rd floor but below the 8th floor. 1. The stepback is only required on building faces adjoining the public street. 2. The depth of a required stepback may be reduced by 5 feet if the cornice line of the stepback matches the cornice line of an adjacent building. C. Administrative Alternate Findings The Planning and Development Officer may in accordance with Sec. 10.2.17. approve an alternate building massing standard, subject to all of the following findings: 1. The approved alternate meets the intent of the building massing regulations. 2. The approved alternate conforms with the Comprehensive Plan and adopted City plans. 3. If the approved alternate uses a change in building materials to mimic a change in wall plane, the most substantial and durable building materials are located at the bottom floors of the building. 4. If the approved alternate proposes a building setback behind the sidewalk in lieu of a required stepback, the resulting open space includes public amenities such as seating areas, trees and landscaping or outdoor dining. 5. The building contains architectural treatments for delineating the base, middle and top of the building. Height of Building Up to 3 Stories 4 to 5 Stories 6 to 7 Stories 8 to 12 Stories 13 to 20 Stories 21 to 40 Stories D. Massing C1 3rd - 7th story stepback (min) n/a n/a n/a 12' 15' 15' E. Towers D1 Floor plate size above 12 stories (max) n/a n/a n/a n/a 25,000 sf 25,000 sf D2 Spacing between towers - floors above 12 stories (min)* n/a n/a n/a n/a n/a 100' Street Street C2 C2 Street Street C1 C1 C2 C2 C1 C1 D1 D1 D2 * Building separation is measured orthogonally to the wall plane