Morrisville Unified Development Ordinance - February 2021.2

ARTICLE 5: DEVELOPMENT STANDARDS ................................................................................... 5-1 Section 5.1. General Provisions.............................................................................................................5-1 5.1.1. General Intent ..................................................................................................................................................................5-1 Section 5.2. General Site Layout and Design.........................................................................................5-1 5.2.1. All Districts .........................................................................................................................................................................5-1 5.2.2. Transit-Oriented Development (TOD) District............................................................................................................5-1 Section 5.3. Subdivision Blocks, Lots, and Reference Points..................................................................5-1 5.3.1. Blocks..................................................................................................................................................................................5-1 5.3.2. Lots......................................................................................................................................................................................5-2 5.3.3. Subdivision Reference Points.........................................................................................................................................5-3 Section 5.4. Tree Protection ...................................................................................................................5-4 5.4.1. Purpose ..............................................................................................................................................................................5-4 5.4.2. Applicability .....................................................................................................................................................................5-4 5.4.3. Tree Survey.......................................................................................................................................................................5-6 5.4.4. Tree Canopy Retention...................................................................................................................................................5-6 5.4.5. Tree Protection Plan and Tree Protection Areas.......................................................................................................5-9 5.4.6. Tree Protection During Development Activity ......................................................................................................... 5-10 5.4.7. Mitigation for Tree Removal ...................................................................................................................................... 5-11 5.4.8. Credit Towards Other Standards ............................................................................................................................. 5-13 Section 5.5. Common Open Space and Public Recreation Area ..........................................................5-13 5.5.1. Common Open Space..................................................................................................................................................5-13 5.5.2. Public Recreation Area................................................................................................................................................5-18 5.5.3. Alternative Options for Meeting Common Open Space and Public Recreation Area Requirements......... 5-19 Section 5.6. Floodplain Management ..................................................................................................5-21 5.6.1. Purpose ...........................................................................................................................................................................5-21 5.6.2. Required Certificates...................................................................................................................................................5-22 5.6.3. Determinations for Existing Buildings and Structures ............................................................................................ 5-23 5.6.4. General Standards for All Special Flood Hazard Areas.................................................................................... 5-23 5.6.5. Standards for Special Flood Hazard Areas with Flood Elevation Data .......................................................... 5-24 5.6.6. Standards for Floodplains Without Established Base Flood Elevations............................................................ 5-28 5.6.7. Standards for Floodways and Non-Encroachment Areas.................................................................................... 5-29 Section 5.7. Perimeter and Streetyard Buffers......................................................................................5-29 5.7.1. Purpose ...........................................................................................................................................................................5-29 5.7.2. Applicability ..................................................................................................................................................................5-29 5.7.3. Required Buffer Type ..................................................................................................................................................5-30 5.7.4. Buffer Type Standards................................................................................................................................................5-31 5.7.5. Location of Buffers........................................................................................................................................................5-39 5.7.6. Development within Required Buffers ...................................................................................................................... 5-39 5.7.7. Alternative Configuration ...........................................................................................................................................5-39 5.7.8. Credit Towards Other Required Landscaping ....................................................................................................... 5-39 Section 5.8. Access and Circulation.....................................................................................................5-40 5.8.1. Purpose ...........................................................................................................................................................................5-40