Cost to Build a House in Harris County, Texas

Building a house in Harris County costs an average of $224,000–$310,000 for a 2,000 sq ft standard build at $112–$155 per square foot. The Woodlands and inner-loop Houston run higher at $128–$135/sq ft, while areas like Humble and Pasadena are more affordable at $102–$105/sq ft. These figures exclude land, flood mitigation, permits, and site work.

Harris County has some of the most complex flood zone regulations in the US following Hurricane Harvey. Building in a FEMA Special Flood Hazard Area (Zone AE or AO) typically adds $12,000–$30,000 to your build cost for elevated slabs, flood vents, and flood-resistant materials. Always check the FEMA flood map and get a flood elevation certificate before purchasing land in Harris County.

Municipal Utility Districts (MUDs) cover water, sewer, and drainage in most unincorporated Harris County areas. When building in a MUD district, you pay connection fees of $2,000–$8,000 upfront plus ongoing MUD taxes of $0.50–$1.50 per $100 of assessed value annually. The Woodlands, Katy, and Cypress all have active MUD districts. These fees are on top of standard Harris County permit fees.

Yes — Harris County averages $112–$128/sq ft vs Travis County at $130–$160/sq ft. A 2,000 sq ft standard build in Katy runs about $224,000–$236,000 vs $260,000–$320,000 in Austin suburbs. The gap is driven by Austin's tech boom labor costs and stricter environmental permitting. Houston also has no zoning, which can reduce some permitting complexity and cost.

Harris County (unincorporated areas) typically issues permits in 3–6 weeks for standard new construction. The City of Houston takes 6–10 weeks. Flood-affected areas requiring FEMA elevation review can add 3–8 weeks. MUD district approvals are separate and run 2–4 weeks in parallel. Total permitting time for a new home in Harris County is typically 6–14 weeks.