HOUTEX operates on a cost-plus contract model, meaning your proposal is fully itemized with real numbers, not allowances. Use the estimator below to build a ballpark based on our actual fee schedule, then schedule a consultation for a project-specific number.
Built on HOUTEX's published design fee schedule · All figures are estimates only
Build tier Square footage| Service | Rate | Billed sqft | Fee |
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* Minimum 2,000 sqft applies to all design services. COH permit fees vary by project, call for pricing.
All figures are estimates and ranges only. Final costs depend on lot conditions, finish selections, market pricing, and project complexity. HOUTEX uses a cost-plus contract model, your actual proposal will include full itemized pricing. Design fees reflect HOUTEX's published fee schedule (2026).
Tell us about your project and we'll follow up with a clear path forward and a fully itemized proposal — no guesswork.
Every custom home starts with the lot. Factors such as Houston clay soil, floodplain requirements, drainage, tree preservation, and site grading can significantly impact construction costs. Properties that require extensive site preparation, foundation upgrades, or utility extensions often require additional investment before vertical construction begins.
One of the biggest drivers of custom home pricing is your finish selection. Cabinetry, countertops, flooring, windows, lighting, plumbing fixtures, and appliances can vary significantly in cost. Choosing premium materials and custom details creates a more personalized home but also affects the overall investment.
Home size is only part of the equation. Open-concept layouts typically build more efficiently than highly customized floor plans with multiple rooflines, vaulted ceilings, large spans, curved walls, or extensive architectural details. Design complexity often impacts cost more than square footage alone.
Engineering requirements can influence both budget and timeline. Features such as second-story living spaces, expansive openings, steel beams, cantilevers, outdoor living structures, and specialty foundations require additional engineering and skilled craftsmanship to execute properly.
Building permits, inspections, utility requirements, and local development regulations vary across Houston and surrounding communities. Requirements may differ in areas such as Garden Oaks, Oak Forest, The Heights, Spring Branch, and other neighborhoods, impacting both project timelines and costs.
Material pricing, labor availability, and project scheduling can affect the overall cost of building a custom home. Market conditions change throughout the year, and accelerated construction schedules may require additional coordination to keep your project on track.
Under cost-plus, you pay the actual cost of materials and labor, plus a fixed construction management fee. Every invoice is transparent and shared with you. There's no hidden markup, what the materials cost is what you're charged for materials.
Architectural drawings are billed at $2.25/sqft. Structural engineering (P.E. stamped) is $1.50/sqft. An optional interior design package is $1.00/sqft. All design fees have a 2,000 sqft minimum billing. City of Houston permit fees vary by project, we provide an estimate after reviewing your project scope.
Architectural drawings include general notes, site plan, floor plans, roof plan, building elevations, electrical plan, and an exterior 3D render. Structural drawings include foundation plan, joist and roof framing plans, details, and general structural specifications.
This tool is designed to give you a realistic ballpark, not a bid. It uses our actual design fee rates and current Houston construction cost ranges. Final pricing depends on your specific lot, finishes, floorplan, and timing. Schedule a consultation for a project-specific number.
After an initial consultation and design phase, you receive a full itemized proposal. We don't issue speculative numbers, we invest time in design and scope alignment first, so the proposal reflects what your project actually requires.
Yes. We build across the Greater Houston area, including The Heights, Garden Oaks, Oak Forest, Spring Branch, Friendswood, and the surrounding suburbs. Local code knowledge and lot familiarity come standard.