Morrisville Unified Development Ordinance - May 2020

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.........5-20 Section 5.6. Floodplain Management ............................................................................................. 5-22

5.6.1. Purpose .....................................................................................................................................................................5-22

5.6.2. Required Certificates..............................................................................................................................................5-22

5.6.3. Determinations for Existing Buildings and Structures .........................................................................................5-23

5.6.4. General Standards fo r All Special Flood Hazard Areas .................................................................................5-24

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..........................................................5-29

5.6.7. Standards for Floodways and Non-Encroachment Areas.................................................................................5-29 Section 5.7. Perimeter and Streetyard Buffers.................................................................................. 5-30

5.7.1. Purpose .....................................................................................................................................................................5-30

5.7.2. Applicability ............................................................................................................................................................5-30

5.7.3. Required Buffer Type.............................................................................................................................................5-31

5.7.4. Buffer Type Standards...........................................................................................................................................5-32

5.7.5. Location of Buffers ..................................................................................................................................................5-40

5.7.6. Development within Required Buffers..................................................................................................................5-40

5.7.7. Alternative Configuration ......................................................................................................................................5-40

5.7.8. Credit Towards Other Required Landscaping....................................................................................................5-40 Section 5.8. Access and Circulation ................................................................................................ 5-41

5.8.1. Purpose .....................................................................................................................................................................5-41