Unified Development Ordinance

Welcome to Gwinnett County's Unified Development Ordinance (UDO) webpage.

The UDO combines the County's zoning resolution, development regulations, buffer and landscape requirements, floodplain and stormwater management regulations and other ordinances into one coordinated code document.

Visit this page regularly for the most updated version of the UDO, including periodic amendments to its text and tables.

• UDO Effective Date Memorandum

• UDO Effective Date for Projects Submitted Memorandum (PDF)
• UDO Effective Date for CDC Package and Bond Information (PDF)
• Unified Development Ordinance (PDF)
• Unified Development Ordinance Without the Appendix (PDF)
• Unified Development Ordinance Amendment UDOA2020-00003 (Amendment to Certain Provisions of the UDO Concerning Stormwater Management) (PDF)

• UDO Title 1: Administration (PDF)
• UDO Title 2: Land Use and Zoning (PDF)
• UDO Title 3: Development and Permitting (PDF)
• UDO Appendix (PDF)
• Standard Drawings

• UDOA2014-00001
• UDOA2014-00002
• UDOA2015-00001
• UDOA2015-00002
• UDOA2015-00003
• UDOA2015-00004
• UDOA2015-00005
• UDOA2016-00001
• UDOA2016-00002
• UDOA2016-00003
• UDOA2016-00004
• UDOA2017-00001
• UDOA2018-00001
• UDOA2018-00002
• UDOA2018-00003
• UDOA2019-00002
• UDOA2019-00003
• UDOA2019-00004
• UDOA2019-00005
• UDOA2019-00006
• UDOA2019-00007
• UDOA2020-00002
• UDOA2020-00003