Who does what
| Professional | When you need one |
|---|---|
| Designer or design-build contractor | Layouts, permit drawings and selections for most remodels |
| Structural engineer | Foundations, beams, second stories, large openings |
| Architect | Optional for homes; valuable for complex or historic projects |
| Surveyor | Additions near property lines or easements |
Historic districts
In a Houston historic district, exterior changes and additions need a Certificate of Appropriateness. An architect or designer experienced with the district’s design guidelines can make approval smoother.
Common questions
Does an addition need engineered plans in Houston?
Most additions need a foundation design and structural details on the permit drawings, which typically come from an engineer.
Can a contractor draw my plans?
Yes, for a single-family home, as long as the person doesn’t represent themselves as an architect. Structural parts still need engineering where required.
Sources
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.