Elevation Certificates in Minnehaha County
An elevation certificate is an official document completed by a licensed land surveyor that records key elevation data about a structure relative to the flood levels established on FEMA flood maps. In Minnehaha County, demand for elevation certificates is concentrated along the Big Sioux River, which carries a Zone AE floodplain designation as it flows through Sioux Falls. Property owners in that corridor routinely need elevation certificates for flood insurance, building permits, and lender requirements.
The Big Sioux River and Sioux Falls Flood Zone
The Big Sioux River defines much of Sioux Falls’ character, running through Falls Park in the north and continuing south through the city before exiting Minnehaha County. FEMA has mapped a Zone AE Special Flood Hazard Area along the river through this stretch, reflecting the real risk of flooding during major storm events.
Properties near the river in downtown Sioux Falls, in the neighborhoods lining the river corridor, and in areas adjacent to Falls Park may fall within or near this zone. When a property is in Zone AE, the National Flood Insurance Program and most mortgage lenders have requirements that bring elevation certificates into play.
In western Minnehaha County, Split Rock Creek also has mapped floodplain segments. Property owners in rural and semi-rural areas along that waterway face the same elevation certificate requirements as those near the Big Sioux River, though the volume of affected properties is smaller.
When an Elevation Certificate Is Required
Flood Insurance Purchase
If your property is in a Special Flood Hazard Area and you are buying flood insurance through the National Flood Insurance Program, an elevation certificate allows the insurer to rate your policy accurately based on the actual elevation of your structure. Without one, the NFIP uses assumptions about floor elevation that often result in a higher premium than the structure’s actual position warrants.
Mortgage Lender Requirement
Federally backed mortgage lenders are required to mandate flood insurance for properties in a Special Flood Hazard Area. If your lender identifies your property as being in Zone AE, they may require an elevation certificate as part of the loan process to support the flood insurance requirement.
Building Permits for New Construction or Improvements
Minnehaha County and the City of Sioux Falls require elevation certificates for new construction and substantial improvements to structures in the mapped floodplain. The certificate documents that the structure meets the minimum elevation requirements set by local floodplain management ordinances, which are based on the FEMA Base Flood Elevation.
Letters of Map Amendment
If your property appears on a FEMA flood map as being in a Special Flood Hazard Area, but your land or structure is actually elevated above the Base Flood Elevation, you may be able to obtain a Letter of Map Amendment to remove it from the mapped zone. An elevation certificate prepared by a licensed surveyor is the core supporting document for that application.
What the Certificate Documents
An elevation certificate captures specific measurements about a structure and its location relative to the Base Flood Elevation. The key data points the surveyor collects and records include:
- The lowest floor elevation of the structure, including the basement if present
- The elevation of the lowest horizontal structural member if the building is elevated on a crawlspace, piers, or columns
- The elevation of attached garage floors
- The elevation of mechanical equipment located outside the structure
- The property’s location relative to the FEMA flood map, including the community panel number and flood zone designation
- Whether the structure is in a floodway
The surveyor certifies these measurements with their professional license and seal. Insurance agents and local floodplain administrators rely on the certified data to make accurate determinations about flood risk and compliance.
Cost of an Elevation Certificate in Minnehaha County
Most elevation certificates in Minnehaha County cost between $350 and $600. Minnehaha County’s flat terrain and urban density generally make fieldwork straightforward: properties are accessible, and surveyors can typically complete the field portion in a single visit. The county’s well-organized plat and flood map records support efficient office research as well.
Factors that can push cost toward the higher end of the range include structures with complex floor configurations, properties requiring research to confirm the correct FEMA map panel, or locations in western Minnehaha County that require additional drive time from Sioux Falls.
Choosing a Surveyor for an Elevation Certificate
When selecting a surveyor for an elevation certificate along the Big Sioux River or Split Rock Creek, ask whether the firm has prior experience completing elevation certificates in Minnehaha County. Familiarity with the local FEMA map panels, the specific flood zones along each waterway, and the City of Sioux Falls floodplain permit process helps ensure an accurate and useful certificate.
Every surveyor in our Minnehaha County directory is sourced from state licensing records. Browse the Minnehaha County directory to find a licensed land surveyor for your elevation certificate in Sioux Falls or anywhere in Minnehaha County.