When you need an elevation certificate
An elevation certificate shows how high a building sits compared with how high local floodwaters are expected to rise, with its location, features and first floor height. FEMA FloodSmart
TWDB says the certificate is required when the property is in a high-risk flood zone. TWDB Texas Quick Guide
FEMA says most homeowners do not need an elevation certificate to buy flood insurance. FEMA FloodSmart
The exception is a home in a high risk Zone A or high risk coastal Zone V, where the owner may need one to show the property meets local safety standards. FEMA FloodSmart
TWDB says local floodplain rules typically call for an elevation certificate and a permit, and the certificate helps document that a building in the floodplain was built to the community's ordinance. TWDB Texas Quick Guide
Insurance agents use elevation certificates to write and rate flood policies. TWDB Texas Quick Guide
Missouri SEMA describes the NFIP Elevation Certificate as used for floodplain ordinance compliance, insurance rating, and Letter of Map Amendment requests. Missouri SEMA
How to get one
Your home may already have an elevation certificate on file with your community. Ask your local floodplain manager, who often works in the city or county building, permitting or engineering office. FEMA FloodSmart
If none is on file, FEMA says you need to hire a land surveyor, engineer or architect to complete one. FEMA FloodSmart
TWDB says the certificate must be completed and sealed by a licensed surveyor, architect or engineer. TWDB Texas Quick Guide
Find a registered surveyor: Texas surveying firms, Texas license lookup or elevation certificate surveyors.
What it does and does not change
FEMA says an elevation certificate does not set your rate, but it can show discounts. FEMA FloodSmart
Under the NFIP's current pricing, the flood zone and a building's elevation compared with the base flood elevation are no longer the only factors in the premium. FEMA FloodSmart
TWDB notes the certificate by itself cannot be used to waive the requirement to buy flood insurance. TWDB Texas Quick Guide
To challenge a flood zone designation, owners can apply for a Letter of Map Amendment (LOMA) or Letter of Map Revision (LOMR) through FEMA's online LOMC application. FEMA FloodSmart