Floodplain Development

A local floodplain development permit is required for all development (not just buildings) in the 100-year floodplain. Always check with Planning and Development Services (P&DS) to see if a floodplain development permit is required, or to report illegal floodplain development.

New building construction, substantial improvements and substantial damage must satisfy all flood protection regulations. For residential properties, this means that the floor must be at least two feet above flood elevations.

General floodplain maps, which include both high hazard, conveyance, and flood fringe zones; more specific maps; and a determination of whether a property is in the high hazard or conveyance zone are available.

Floodplain regulations are covered in Overlay Districts: Sections 9-3-2 through 9-3-8 of the Boulder Revised Code.

Development Permits

To apply for a floodplain development permit, fill out the Floodplain Development Permit Application form and bring it to the Planning & Development Services Center, 1739 Broadway, third floor.

Floodplain Information Requests

Floodplain maps show which areas of the city are at risk for flooding that threatens life and property. 
These maps provide the basis for flood management, regulation and insurance requirements.

If you would like information on whether a specific property is in the floodplain, check the online floodplain map. 

You can also get a Public Flood Map or a Flood Insurance Rate Map from the FEMA Map Service Center.

If you want P&DS to look up your floodplain information for you, fill out the Floodplain Information Request form and either fax it to 303-441-4241 or drop it off in person at 1739 Broadway, third floor.

Last Updated on Wednesday, 09 January 2013 13:08