What Is an Elevation Certificate?
An elevation certificate is a standardized FEMA form completed by a licensed Professional Land Surveyor or licensed engineer. It documents the elevation of a building's lowest floor relative to the Base Flood Elevation on FEMA's Flood Insurance Rate Maps. Lenders use it to confirm flood insurance compliance. Insurance agents use it to rate flood insurance policies accurately. Property owners use it to challenge incorrect flood zone designations through FEMA's Letter of Map Amendment process.
Spokane County Flood Risk Context
Spokane County's flood exposure is modest compared to western Washington. There is no Pacific coastline, no Puget Sound waterfront, and the inland plateau geography limits the number of properties in mapped Special Flood Hazard Areas. That said, the Spokane River and its tributaries create real flood risk in specific corridors that property owners should understand.
Spokane River Corridor (Downtown Spokane)
The Spokane River flows west through the center of downtown Spokane, passing through the Spokane Falls area before continuing toward the Idaho state line. Properties along the river's lower banks in downtown Spokane fall within FEMA Zone AE designations on current Flood Insurance Rate Maps. Commercial and mixed-use development near the waterfront is the most affected category, but some residential parcels on the south and north banks of the river in the downtown core also carry flood zone status.
Spokane Valley Flood Areas
The Spokane River continues east through Spokane Valley after leaving the city of Spokane. Low-lying areas adjacent to the river in Spokane Valley, particularly those near the Centennial Trail corridor and areas between Sullivan Road and the Idaho border, contain parcels mapped as Special Flood Hazard Areas. Development pressure in Spokane Valley has pushed construction closer to the river corridor in some areas, making flood zone awareness important for buyers and builders.
Latah Creek Drainage
Latah Creek (also called Hangman Creek) drains the Palouse hills south of Spokane and joins the Spokane River in the southwest part of the city. The lower reaches of Latah Creek carry FEMA flood zone designations where the channel widens near its confluence with the Spokane River. Properties in the Latah Creek valley south of downtown Spokane may fall within these mapped areas.
When You Need an Elevation Certificate in Spokane County
- Your lender requires flood insurance: Federal and federally backed mortgage lenders must require flood insurance for properties in mapped Special Flood Hazard Areas. The insurer needs an elevation certificate to rate the policy accurately.
- You want to challenge a flood zone designation: If you believe your property is outside the flood zone or is above the Base Flood Elevation, an elevation certificate is the foundation of a Letter of Map Amendment application to FEMA.
- You are building or making substantial improvements: Spokane County's floodplain management program requires that new construction and substantial improvements in Special Flood Hazard Areas meet minimum elevation standards. An elevation certificate documents compliance before a certificate of occupancy is issued.
- Your flood insurance premium is higher than expected: If your building is above the Base Flood Elevation but your insurer lacks elevation documentation, you may be paying more than necessary. A current elevation certificate can trigger a rate reduction.
How the Elevation Certificate Process Works
A licensed Washington PLS visits your property and measures the elevation of the building's lowest floor, the lowest horizontal structural member for elevated structures, and any mechanical equipment serving the building. These measurements are compared to the Base Flood Elevation shown on the applicable FEMA FIRM panel for your address. The surveyor completes the FEMA elevation certificate form, stamps it with their PLS seal, and provides it to you for use with your lender or insurance agent.
In Spokane County, most residential elevation certificates can be completed in one to two weeks. Projects requiring additional setup, access challenges, or multiple structures may take longer.
Checking Your Flood Zone Before Hiring
Use the FEMA Flood Map Service Center at msc.fema.gov to search your address and see which FIRM panel applies to your property. The Spokane County GIS portal at gis.spokanecounty.org also displays flood zone overlays on parcel maps. If your property is clearly outside any Special Flood Hazard Area, you may not need an elevation certificate unless a lender specifically requests one as a condition of the loan.
Find a Licensed Surveyor for Your Elevation Certificate
Only a licensed Washington Professional Land Surveyor or licensed engineer can complete a valid elevation certificate. Our directory lists licensed surveyors serving Spokane, Spokane Valley, Liberty Lake, Cheney, Airway Heights, and the rest of Spokane County. Search Spokane County surveyors to find a firm with flood zone experience and request quotes.