Morrisville Unified Development Ordinance - September 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.........5-19 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