Texas
Topographic Survey
A survey mapping elevations, contours, trees and site features, the base map engineers need before designing anything.
What the work involves
A topographic survey maps the shape and elevation of the ground plus features such as buildings, trees, utilities and water. It is performed by a licensed land surveyor, not a civil engineer, though many civil engineering firms have surveyors on staff. Engineers design grading, drainage, retaining walls and septic systems from this data.
Local conditions we plan for
- Expansive clay soils and foundation movement
- Hurricanes and coastal flooding on the Gulf Coast
- Flash flooding (Hill Country, Houston)
- Karst in the Edwards Aquifer region
Building code: 2012 IBC/IRC listed at the state level; local jurisdictions may adopt newer editions (ICC adoption chart, April 2026).
When you need it
- Before a grading, drainage or site plan
- Designing a retaining wall or driveway
- Septic or new home design
- Flood or drainage analysis
Frequently asked questions
How much does topographic Survey cost?
Across the US, topographic Survey usually costs $500 to $6,500. Sources disagree: Fixr lists $500 to $1,200 for residential topographic surveys; other cost guides report $2,000 to $6,500 for larger or wooded sites.
How long does topographic Survey take?
Plan on 1 to 3 weeks from signed proposal to stamped deliverables, longer if a site visit, soil testing or a permit review cycle is involved.
Is a permit required for topographic Survey?
Often not on its own, but the findings frequently lead to work that does need a permit. We tell you which parts of the follow-up work your local building department will review, and can prepare those drawings too.
How do I verify an engineer's license in Texas?
Engineers practicing in Texas are licensed by the Texas Board of Professional Engineers and Land Surveyors. You can confirm a license number and its status in the board's public license search before you sign a contract.
Which building code applies in Texas?
2012 IBC/IRC listed at the state level; local jurisdictions may adopt newer editions (ICC adoption chart, April 2026). Cities and counties can add local amendments, which is one reason to hire an engineer who works in your area.
What site problems do engineers see most in Texas?
Common issues include expansive clay soils and foundation movement, hurricanes and coastal flooding on the Gulf Coast, flash flooding (Hill Country, Houston) and karst in the Edwards Aquifer region.