When elevation comes up
- Substantial damage: repairs after a flood or storm would cost 50% or more of the building’s market value.
- Substantial improvement: a remodel or addition costs 50% or more of the building’s market value.
- Voluntary: lowering flood insurance premiums and future risk.
What it involves
| Foundation | How it’s raised | Relative cost |
|---|---|---|
| Pier-and-beam | Lift the house and build taller piers | Lower |
| Slab | Tunnel and lift the slab, or build a new raised floor system | Much higher |
Paying for it
- Increased Cost of Compliance (ICC) coverage on NFIP flood policies: up to $30,000 after a substantial damage determination
- FEMA Hazard Mitigation Grant Program funds when available through local programs
- Lower flood insurance premiums once the house is higher
Common questions
How much does it cost to raise a house in Houston?
It varies widely. Reported Houston examples after Harvey ranged from about $75 per square foot to more than $250,000 for larger homes. Slab homes cost far more than pier-and-beam.
Can I remodel instead of raising my house?
If the project stays under 50% of the building’s market value, elevation isn’t triggered by the remodel. We check this with you before design.
Sources
- Texas Tribune: The cost of elevating Houston homes after Harvey
- Houston Permitting Center: Outdoor improvement and floodplain review
This guide is general information, not legal, tax or financial advice. Rules change; confirm details with the agency named in the sources or a licensed professional.