A typical Texas construction project takes 6–18 months from initial planning to move-in, depending on project type. Custom homes run 10–16 months, barndominiums 6–10 months, and metal buildings 3–6 months. Hill Country-specific factors — rocky caliche soil, Burnet County permitting timelines, and spring hail season — add 4–8 weeks to most schedules.
Planning a construction project in the Texas Hill Country means working with a timeline shaped by local soil, permitting, and climate — not generic national averages. In our 7+ years building across Burnet, Marble Falls, Liberty Hill, and surrounding counties, TMB Construction has learned exactly where schedules slip and how to prevent it. This guide covers every phase with real timelines, local cost data, and Hill Country-specific scheduling decisions. Call 830-289-3852 for a free estimate and a timeline tailored to your property.
Phase 1: Pre-Construction Planning (Weeks 1–8)
The pre-construction phase is where most Hill Country projects are won or lost on time. Before a single shovel hits the ground, you need a completed site survey, soil test, engineered drawings, and a building permit in hand — and in Burnet County, that permit process alone can take 3–6 weeks depending on project complexity and current office volume. The Burnet County permitting office, located at 220 S. Pierce Street, requires a completed application, two sets of stamped engineered plans, a site plan showing setbacks, and proof of septic approval if applicable from the Texas Commission on Environmental Quality (TCEQ). Budget 2–3 weeks for a licensed engineer to produce stamped drawings that meet IBC 2021 standards, which Texas adopted statewide. Soil testing along Highway 29 and Ranch Road 1431 corridors frequently reveals shallow caliche layers that require pier-and-beam or drilled pier foundations rather than standard slab — a discovery that adds $8,000–$18,000 and 2–4 weeks to the foundation phase if caught late. Getting a geotechnical report ($800–$1,500) during pre-construction saves far more time and money downstream. From our experience with Burnet County permitting, submitting a complete, accurate package the first time cuts review time by 30–40% compared to incomplete submittals that trigger correction cycles.
Key Data: Burnet County permit review: 3–6 weeks for residential projects
- Site survey and boundary marking: 1–2 weeks
- Soil/geotechnical report: 1 week ($800–$1,500)
- Engineered drawings (IBC 2021 compliant): 2–3 weeks
- Burnet County permit application and review: 3–6 weeks
- TCEQ septic approval (if no municipal sewer): 3–5 weeks (run concurrently)
Phase 2: Site Preparation and Land Clearing (Weeks 6–10)
Site prep in the Texas Hill Country is rarely straightforward. Cedar, live oak, and mesquite root systems can extend 20–30 feet from the trunk, and rocky outcroppings along the Llano Uplift — common on properties between Burnet and Kingsland — often require a rock saw or blasting permit rather than standard excavation equipment. TMB Construction handles land clearing in-house, which eliminates the 2–4 week subcontractor scheduling gap that independent general contractors often face. A standard one-acre clearing job on Hill Country terrain runs $3,500–$8,500 depending on vegetation density and rock presence. Grading and drainage work must comply with Burnet County's stormwater management requirements, and improper grading is one of the top reasons final inspections fail in this region. During the summer months — when average highs reach 96°F — we schedule heavy equipment work before 10 a.m. to protect both crew and machinery. This phase typically overlaps with the tail end of permitting, so a well-coordinated contractor can compress the overall schedule by 2–3 weeks by starting clearing the moment permits are approved rather than waiting until full permit receipt.
Key Data: Land clearing in Hill Country: $3,500–$8,500 per acre depending on terrain
- Vegetation removal and cedar/mesquite clearing
- Rock identification and saw/blasting assessment
- Rough grading for drainage compliance
- Utility trenching and marking (call 811 before digging)
- Driveway and access road rough-in
Phase 3: Foundation Work (Weeks 8–14)
Foundation work is the phase most affected by Hill Country geology, and it's where under-budgeted projects first run into serious delays. The caliche and limestone bedrock common across Burnet, Lampasas, and Llano counties means standard monolithic slabs are often engineered with post-tension cables or thickened edge beams to handle differential movement — adding $4–$7 per square foot over basic slab costs. For a 2,000-square-foot home, expect foundation costs of $18,000–$32,000 depending on soil conditions and engineering requirements. Drilled pier foundations, required on steeper lots overlooking Lake LBJ or around Horseshoe Bay, run $1,200–$2,500 per pier, with most residential projects requiring 20–40 piers. Concrete pours during summer must follow ACI 305R hot-weather guidelines: water-to-cement ratios are closely managed, and pours are typically scheduled for 5–7 a.m. to avoid afternoon heat that accelerates hydration and weakens the finished slab. Curing time is non-negotiable — IBC 2021 Section 1907 requires a minimum 7-day cure before loading, and in Hill Country summer heat, moisture curing with wet burlap or curing compound is standard practice on all TMB projects.
Key Data: Post-tension slab cost: $18,000–$32,000 for 2,000 sq ft on Hill Country terrain
Never skip the geotechnical report. On three separate projects near Bertram, undiscovered caliche layers caused foundation redesigns that added $14,000–$22,000 and 6 weeks each to the schedule.
Phase 4: Framing and Structure (Weeks 12–20)
Framing is where the project becomes visibly real — and where the choice between wood-frame, steel frame, or hybrid construction significantly impacts your timeline and budget. For a standard 2,000-square-foot custom home in the Hill Country, wood framing typically takes 3–5 weeks with a full crew. Metal building framing for a barndominium of the same footprint often runs 2–4 weeks because pre-engineered steel components arrive cut and labeled, reducing on-site fabrication time. TMB Construction fabricates custom steel components in-house — a direct legacy of our roots as Torres Metal Buildings — which means we're not waiting on third-party steel shops when a custom connection or beam modification is needed. This alone saves 1–2 weeks on complex projects. Per MBMA (Metal Building Manufacturers Association) standards, steel framing members for residential applications in our wind zone (90 mph design wind speed per ASCE 7-16 for Burnet County) use minimum 14-gauge structural steel. For wood framing, Texas Residential Construction Commission standards require framing inspections before sheathing installation — budget 2–5 days for inspection scheduling with Burnet County.
Key Data: Wood frame: 3–5 weeks; Metal barndominium frame: 2–4 weeks for 2,000 sq ft
- Structural steel or lumber delivery and staging
- Wall framing and sheathing
- Roof truss installation
- Window and door rough openings
- Framing inspection (Burnet County: 2–5 day scheduling window)
Phase 5: MEP Rough-In and Inspections (Weeks 18–26)
Mechanical, electrical, and plumbing rough-in work runs concurrently and must be completed and inspected before insulation or drywall can begin. In Texas, all electrical work must be performed by a TDLR-licensed Master Electrician, and plumbing by a licensed plumber under Texas State Board of Plumbing Examiners rules. Each trade requires a separate rough-in inspection, and in Burnet County, scheduling all three within the same week requires advance coordination — inspectors serve multiple jurisdictions and aren't always available on demand. Budget 1–2 weeks for inspection scheduling and correction cycles. HVAC design for Hill Country homes must account for extreme temperature swings: average highs of 96°F in July–August and occasional hard freezes December–February require properly sized systems. ENERGY STAR guidelines recommend Manual J load calculations for all HVAC equipment sizing, and TMB coordinates with licensed HVAC contractors to ensure systems meet these standards. For homes with spray foam insulation (R-21 walls, R-38 attic minimum recommended for this climate zone), the HVAC sizing must be recalculated — improper sizing after a high-performance envelope upgrade is a common and costly mistake.
Key Data: Hill Country climate design temps: 96°F summer high, hard freeze risk Dec–Feb; Manual J HVAC sizing required
- Electrical rough-in (TDLR-licensed Master Electrician required)
- Plumbing rough-in (Texas SBPE licensed plumber required)
- HVAC ductwork and equipment rough-in
- Separate inspections for each trade
- Insulation installation after all rough-ins pass
Phase 6: Exterior Finishes and Roofing (Weeks 22–30)
Roofing and exterior work in the Hill Country carries a scheduling risk most homeowners don't anticipate: hail season. March through May brings the highest probability of large hail across Burnet, Llano, and San Saba counties, and an unfinished roof during an active storm system can cause $10,000–$40,000 in material damage and 2–6 weeks of delays. TMB Construction schedules roofing installation to be completed before March wherever possible, or uses temporary weatherproofing when spring start dates are unavoidable. For metal roofing — the most popular choice in the Hill Country due to longevity and heat resistance — we use 26-gauge Galvalume panels with a minimum 40-year warranty. Standing seam metal roofing costs $8–$14 per square foot installed. For stone veneer, a common exterior choice in this region, natural Hill Country limestone sourced from local quarries near Marble Falls runs $18–$28 per square foot installed and requires a 1–2 week lead time for material availability. James Hardie fiber cement siding, another popular option, runs $6–$11 per square foot installed and holds up well to the Hill Country's UV intensity.
Key Data: 26-gauge standing seam metal roof: $8–$14/sq ft installed; 40-year warranty standard
Spring hail season (March–May) is the single biggest weather-related schedule risk in Hill Country construction. Plan your roofing phase accordingly.
Phase 7: Interior Finishes and Final Inspections (Weeks 28–42)
Interior finish work — drywall, flooring, cabinetry, paint, trim, and fixture installation — is the longest phase in terms of elapsed calendar time and the most susceptible to material lead-time delays. In 2024–2025, custom cabinet lead times in the Hill Country market averaged 8–14 weeks from order to delivery, meaning cabinets must be specified and ordered no later than the framing phase to avoid holding up the schedule. Flooring material choices matter for timeline: tile and hardwood installations require acclimation periods (hardwood needs 48–72 hours minimum per NWFA guidelines), while luxury vinyl plank can be installed immediately. For a 2,000-square-foot home, interior finish work typically runs 8–14 weeks depending on finish level. Final inspection by Burnet County requires all trades to be complete, a certificate of occupancy application on file, and a final HVAC commissioning report. From our experience, final inspection scheduling in Burnet County runs 5–10 business days out. Budget 2–3 correction cycles for minor punch-list items. Call TMB Construction at 830-289-3852 to discuss your finish-level preferences and how they affect your overall timeline.
Key Data: Custom cabinet lead time: 8–14 weeks; interior finish phase: 8–14 weeks for 2,000 sq ft
- Drywall hang, tape, and texture
- Cabinet delivery and installation (order at framing phase)
- Flooring installation with required acclimation periods
- Paint, trim, and millwork
- Fixture and appliance installation
- Final inspections and certificate of occupancy
Timeline Comparison by Project Type
Not all construction projects follow the same path. In our 7+ years of Hill Country builds, here are realistic timelines by project type based on actual project data — not manufacturer estimates or national averages. Custom homes (2,000–3,500 sq ft) run 10–16 months from permit application to certificate of occupancy; the wide range reflects finish level, foundation complexity, and whether the site required significant land clearing. Barndominiums run 6–10 months — the compressed timeline comes from faster framing, simpler MEP layouts, and the efficiency of a metal building shell. Metal buildings and agricultural structures (shops, equipment storage, hay barns) run 3–6 months including permitting. Additions and remodels to existing homes typically run 3–8 months, with the biggest variable being the condition of existing structure and utility connections. Commercial metal buildings (under 10,000 sq ft) run 5–9 months. These timelines assume a single general contractor managing all phases — projects using multiple subcontractors and separate specialty contractors typically add 20–35% to elapsed time due to coordination gaps.
Key Data: Custom home: 10–16 months | Barndominium: 6–10 months | Metal building: 3–6 months
- Custom home (2,000–3,500 sq ft): 10–16 months
- Barndominium: 6–10 months
- Metal building/shop: 3–6 months
- Addition or remodel: 3–8 months
- Commercial metal building (under 10,000 sq ft): 5–9 months
What Causes Schedule Delays — and How to Avoid Them
Based on our project history across Burnet, Marble Falls, Bertram, Leander, and Georgetown, the five most common causes of schedule overrun in Hill Country construction are: (1) Incomplete permit packages — missing engineer stamps or septic approvals add 3–6 weeks to permit timelines; (2) Material specification changes after framing — even a cabinet style change can push lead times out 6–10 weeks mid-project; (3) Undiscovered site conditions — shallow rock or unmarked utilities discovered during excavation add $5,000–$20,000 and 2–6 weeks; (4) Weather events during critical phases — a single hail event or week of rain during foundation work can add 1–3 weeks; (5) Multi-contractor coordination failures — when the framing crew, electrical sub, and plumbing sub are from different companies with independent schedules, a 2-day delay in one trade cascades into 2–3 weeks of total schedule impact. TMB Construction's single-team model — where our core crew handles framing, metal work, concrete, and roofing without outside subs for these trades — eliminates delay category five entirely and reduces the impact of categories one through four through better on-site communication.
Key Data: Multi-contractor coordination failures add 20–35% to elapsed project time on average
The single most controllable timeline risk is choosing a contractor whose team handles all core trades in-house. Subcontractor scheduling gaps are the #1 cause of residential construction delays in Texas.
Planning Your Construction Start Date in the Hill Country
Timing your construction start date strategically can save 4–8 weeks and thousands of dollars. In the Hill Country, the optimal start window for most projects is September through November: summer heat has broken, the hail risk is minimal, and permit offices are less backlogged than during the spring rush. If you're targeting a spring start — common for homeowners who want to be in by the holidays — submit your permit application by January to allow for the 3–6 week review window and still begin site work by March. Avoid scheduling concrete foundation pours in July or August if possible; if summer pours are unavoidable, plan for early-morning scheduling and a 10–15% increase in concrete costs due to admixture requirements for hot-weather placement per ACI 305R. For customers currently in the planning phase, the best first step is a free site consultation with TMB Construction — we'll walk your property, assess site conditions, identify permitting requirements specific to your parcel, and give you a realistic timeline and budget range. Call 830-289-3852 to schedule.
Key Data: Optimal Hill Country construction start: September–November; permit lead time adds 3–6 weeks minimum
Start your permit application 3–6 weeks before your target groundbreaking date — earlier for complex projects or during the spring rush season.