What Is Elevation of a Structure and How Does It Help?

Elevation involves lifting the entire building or its lowest floor to a height that sits above the expected flood level for your area. The process usually requires a professional engineer to assess the structure and determine the right lift height. Workers then use hydraulic jacks or other equipment to raise the building carefully.

Once raised, the space below is often left open or filled with a crawlspace, depending on the design. The goal is to keep floodwaters from reaching your living areas, electrical systems, and appliances. This can also lower your flood insurance costs in some cases, though policies vary and your insurer decides what is covered.

• Raises the lowest floor above flood levels
• Uses piers, columns, or raised foundations
• Requires professional engineering assessment
• Can protect electrical and HVAC systems
• May reduce flood risk and potential damage

Elevation is most useful for homes that have flooded before or sit in a designated flood zone. If your area has a history of flooding, raising the structure can give you peace of mind. It is also worth considering if you plan to renovate or rebuild, as it can be easier to incorporate elevation into a new design.

However, not every home is a good candidate. The soil, foundation type, and local building codes all play a role. A structural engineer or local building official can tell you if elevation is feasible for your property. They can also help you understand the permits and approvals you may need before starting.

The cost of elevating a home can be substantial, often ranging from tens of thousands to over a hundred thousand dollars. The final price depends on the size of the structure, the type of foundation, and the required lift height. Local labor rates and the need for utility extensions also affect the total.

Before you commit, check with your insurance company to understand how elevation might affect your flood policy. Some homeowners find that lower insurance premiums help offset the initial investment over time. Also, consider whether your home's design will look and function well at the new height, especially if you have stairs or accessibility needs.