Chapter 19 Floodplain Ordinance

The City of Houston is considering revisions to Chapter 19 to ensure new dwellings are built high enough to save lives and property in the event of flooding.

The City of Houston will reduce the risk of flood loss for future development and redevelopment by ordinance revisions, new regulations, building codes and design guidelines. Existing development will be improved through Capital Improvement Projects, buyouts, home elevations and demo-rebuilds.

Houston’s current code only applies to property in the 100-year floodplain and protects 1 foot above 100-year flood elevation. The proposed revisions would include property in the 500-year floodplain and protect 2 feet of 500-year flood elevation. It would also include no net fill in the 500-year floodplain.

The 100-year floodplain is land that is predicted to flood during a 100-year storm, which has a 1% chance of occurring in any given year. The 500-year floodplain has a 0.2% chance of occurring.

The public input survey on proposed changes to Chapter 19 has closed.
You may email:, or
– contact your local Council Member

Monday, March 5 – public input closed
Thursday, March 22 – draft ordinance posted
Wednesday, March 28 – draft ordinance presented to Council for vote

Proposed Ch. 19 Ordinance
Public Input Summary + Frequently Asked Questions  |  Data Analysis
Mayor Sylvester Turner’s Statement on Flood Ordinance