When You Need an Elevation Certificate on the Big Island
An elevation certificate is a standardized document prepared by a licensed surveyor that records a building's elevation relative to the Base Flood Elevation (BFE) on FEMA's Flood Insurance Rate Maps. In Hawaii County, lenders require this document when a property is in a FEMA Special Flood Hazard Area and the buyer is obtaining a federally backed mortgage. Insurance companies use it to calculate accurate premiums under the National Flood Insurance Program.
Hilo is the Big Island's flood risk epicenter. It receives more annual rainfall than almost any city in the United States, and the Wailuku River and Wailoa River have both caused major flooding events historically. Properties in the lower portions of Hilo near these rivers carry flood zone designations on FEMA maps, and lenders routinely require elevation certificates before closing on affected parcels.
Cost of an Elevation Certificate in Hawaii County
| Property Type | Typical Cost |
|---|---|
| Standard residential lot in Hilo or Kona | $500 to $800 |
| Remote or hard-to-access property | $700 to $1,000 |
| Combined with boundary survey | Often discounted $100 to $200 |
Hilo's Flood Risk
Hilo Bay and the lower reaches of its river system have a well-documented flood history. The Wailuku River, which empties into Hilo Bay near downtown, carries the drainage from the upper slopes of Mauna Kea and Mauna Loa. During extended rain events, this river can rise quickly and inundate low-lying neighborhoods along its banks. The Wailoa River, which connects Wailoa Pond to Hilo Bay, drains a network of fish ponds and lower floodplain areas in the heart of Hilo. Properties along both corridors face real flood exposure.
The FEMA Flood Insurance Rate Maps for Hawaii County show Zone AE designations with published BFEs along the Wailuku and Wailoa corridors. Homeowners in these zones who are purchasing or refinancing with a federally backed loan need an elevation certificate to comply with the mandatory purchase requirement for flood insurance.
Coastal Flood Risk Beyond Hilo
Coastal areas in lower Puna, including properties near beaches in the Kalapana area, carry coastal flood zone designations. On the Kona coast, some lower-elevation properties near Kailua Bay and along the South Kohala resort corridor have flood insurance considerations tied to storm surge risk. These areas are less commonly affected than Hilo's riverine flood zones, but lenders in these locations do require elevation certificates when properties fall within FEMA-designated zones.
Letters of Map Amendment
Some Hawaii County properties appear on FEMA flood maps as being within a Special Flood Hazard Area even though the actual building sits well above the BFE. In these situations, an elevation certificate can support a Letter of Map Amendment (LOMA) application. A successful LOMA removes the mandatory flood insurance requirement from that specific structure. Given the cost of flood insurance premiums in Hawaii, a LOMA represents meaningful annual savings for affected homeowners. A licensed surveyor can review your property's elevations and advise whether a LOMA application is warranted.
Lava Zones vs. Flood Zones
First-time buyers in Hawaii County sometimes confuse lava zone designations with flood zone designations. They are entirely separate systems. Lava zones, numbered 1 through 9 by the USGS, reflect volcanic hazard proximity and affect property insurance availability and value. FEMA flood zones reflect flood risk from water. A property can fall in a high-hazard lava zone without being in a flood zone, and vice versa. Only FEMA flood zone designation triggers the mandatory flood insurance requirement that necessitates an elevation certificate.
How Long the Process Takes
An elevation certificate in Hawaii County typically takes two to four weeks from scheduling to delivery. Travel time adds scheduling complexity for properties far from Hilo or Kona. Combining the elevation certificate with a boundary survey, if you need both, can reduce total cost and condense the schedule.
Find a Surveyor for Your Elevation Certificate
Every surveyor listed in our Hawaii County directory is sourced from state licensing records and holds a current Professional Land Surveyor (PLS) license from the Hawaii Board of Professional Engineers, Architects, Surveyors, and Landscape Architects. Browse firms serving Hilo, Kailua-Kona, Waimea, Pahoa, and Captain Cook at /hawaii/hawaii-county/.