Zoning Ordinance for the Municipality of Winthrop 3/18/19 Table of Contents ARTICLE I - General 1. Purposes. ................................................................................................................................................ 5 2. Authority. ............................................................................................................................................... 5 3. Applicability. ......................................................................................................................................... 5 4. Effective Date of Ordinance and Ordinance Amendments .................................................................... 5 5. Availability. ........................................................................................................................................... 5 6. Severability. ........................................................................................................................................... 6 7. Conflicts with Other Ordinances. .......................................................................................................... 6 8. Amendments ........................................................................................................................................... 6 A. Initiation of Amendment .................................................................................................................. 6 B. Adoption of Amendment ................................................................................................................. 6 C. Public Hearing ................................................................................................................................. 6 D. Repetitive Petitions .......................................................................................................................... 6 ARTICLE II - Nonconforming Uses, Buildings and Lots 9. Nonconformance .................................................................................................................................... 7 A. Purpose. ............................................................................................................................................ 7 B. General ............................................................................................................................................. 7 C. Nonconforming Structures ............................................................................................................... 7 D. Nonconforming Uses ..................................................................................................................... 11 E. Nonconforming Lots ...................................................................................................................... 11 ARTICLE III - Zoning Districts 10. Districts and Zoning Map .................................................................................................................... 12 A. Official Zoning Map. ..................................................................................................................... 12 B. Scale of Map. ................................................................................................................................. 12 C. Certification of Official Shoreland Zoning Map. ........................................................................... 12 D. Changes to the Official Shoreland Zoning Map. ........................................................................... 12 E. Interpretation of District Boundaries ............................................................................................. 13 F. Division of Lots by Zoning District Boundaries ............................................................................ 13 G. Districts .......................................................................................................................................... 13 11. Table of Land Uses. .............................................................................................................................. 15 2 ARTICLE IV - Performance Standards 12. General Requirements. ......................................................................................................................... 18 A. Principal Building .......................................................................................................................... 18 B. Required Yard Spaces .................................................................................................................... 18 C. Visibility at Corner Lots. ............................................................................................................... 18 D. Height of a Structure. ..................................................................................................................... 18 E. Erosion Control. ............................................................................................................................. 18 F. Nuisance Conditions. ..................................................................................................................... 19 G. Off-street Parking and Loading Requirements. ............................................................................. 19 H. Sanitary Provisions. ....................................................................................................................... 25 I. Signs . ........................................................................................................................................... 25 J. Stormwater Run-off. ...................................................................................................................... 26 K. Water Quality Protection. .............................................................................................................. 26 13. Specific Activities. ............................................................................................................................... 27 A. Home Occupations. ........................................................................................................................ 27 B. Livestock and Poultry Keeping. ..................................................................................................... 27 C. Mobile Homes. ............................................................................................................................... 27 D. Multi-family Dwelling Units. ........................................................................................................ 28 E. Route 202 Development. ............................................................................................................... 30 F. Clustered Residential Development. .............................................................................................. 30 14. Development in Shore Areas. ............................................................................................................... 31 A. Minimum Lot Standards. ............................................................................................................... 31 B. Principal and Accessory Structures. .............................................................................................. 32 C. Piers, Docks, Wharves, Bridges and Other Structures and Uses Extending or Located Below the Normal High-Water Line of a Water Body or Within a Wetland. ................................................. 35 D. Campgrounds. ................................................................................................................................ 36 E. Individual Private Campsites. ........................................................................................................ 36 F. Roads and Driveways. ................................................................................................................... 37 G. Storm Water Runoff ....................................................................................................................... 39 H. Septic Waste Disposal.................................................................................................................... 39 I. Essential Services........................................................................................................................... 39 J. Mineral Exploration and Extraction. .............................................................................................. 39 K. Agriculture ..................................................................................................................................... 40 L. Timber Harvesting - Repealed ....................................................................................................... 41 M. Clearing or Removal of Vegetation for Activities Other Than Timber Harvesting....................... 41 N. Hazard Trees, Dead Trees and Storm-Damaged Trees .................................................................. 43 O. Exemptions to Section 14(M) ........................................................................................................ 45 P. Revegetation Requirements ........................................................................................................... 46 Q. Erosion and Sedimentation Control ............................................................................................... 47 R. Soils. ...........................................................................................................................................