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Custom Home Building Process in the Texas Hill Country

Written by Ryan Castro, President, KC Custom Homes. 

25+ years building in New Braunfels, San Antonio, Boerne, and the Texas Hill Country. 2024 TAB Grand Award and multiple GSABA recognitions.

Introduction

Building a custom home in the Texas Hill Country is an exciting journey. But without a clear roadmap, it can feel overwhelming.

At KC Custom Homes, we've refined our process over 25 years to give you confidence at every stage. You'll know what happens next, who's responsible, and how decisions affect your timeline and budget.

This guide walks you through our complete process from your first consultation to the day you receive your keys. Whether you're building in New Braunfels, San Antonio, Boerne, or Canyon Lake, you'll see exactly what to expect.

Quick Reference: Your Build Journey at a Glance

Initial consultation: Free lot review, goal setting, and feasibility assessment
Budget and design: Clear allowances, selections guidance, and Hill Country style options
Permitting: Local Comal and Kendall County permits, soils, utilities, and site prep
Construction: 10-16 month timeline with weekly updates and milestone meetings
Energy efficiency: Climate-appropriate systems with optional third-party verification
Closing: Full orientation, punch list, written warranty, and ongoing support

Ready to talk through your timeline and budget? Request a free quote.

KC Custom Homes logo over a modern Hill Country style custom home with metal roof, wide driveway, and stone landscaping in New Braunfels Texas.

Why Choose KC Custom Homes?

Award-Winning Excellence
2024 TAB Grand Award winner with multiple Greater San Antonio Builders Association recognitions. View our awards.

Proven Track Record
25+ years building luxury custom homes across the Texas Hill Country. See our gallery.

Family Values
Three generations of the Castro family dedicated to your vision. Meet the KC family.

What is the KC Custom Homes process in the Texas Hill Country?

We follow a simple sequence: consult, design, permit, build, and warranty. Each stage has defined tasks, owners, and dates so you always know what happens next.

Clarity reduces risk. It protects your time and your budget.

You get one point of contact from KC Custom Homes. Behind them stands a full support team backing every decision.

How We Keep You Informed

We maintain a weekly update cadence throughout your project. Milestone meetings happen at key phases like pre-construction, framing completion, and pre-drywall.

Dates are tracked against a public-facing schedule. You can plan your move, your furniture delivery, and your life around real timelines.

Photos and notes are logged during site visits. You see progress even when you can't be on-site yourself.

Punch list tools ensure clean closeout. Nothing falls through the cracks at the finish line.

Your Process Checklist

Before moving forward, confirm these elements are clear:

  • Roles and responsibilities for your team and ours
  • Key dates and milestone schedule
  • Budget breakdown with allowances
  • Selection deadlines and options
  • Communication preferences and update frequency

Learn more about our process or meet the team who will guide your build.

How do we start your project and set the budget in New Braunfels and San Antonio?

Begin with a free consultation, land review, and goal setting. We translate your scope into a written spec with allowances so pricing stays clear.

Early clarity avoids redraws and delays. It also prevents budget surprises halfway through design.

Modern Hill Country custom home by KC Custom Homes at dusk, featuring a metal roof, large windows, stone and wood accents, and a curved driveway in New Braunfels Texas.

Your First Meeting

We start by defining the basics. Size, number of rooms, style preferences, and your must-haves.

Then we establish allowance levels for finishes. This keeps expectations aligned with budget reality from day one.

You might love Cambria quartz and European oak floors. We make sure your allowances support those choices before you fall in love with them in the design center.

Site Assessment

We note utilities, driveway access, and site challenges during the initial walk. Identifying constraints early helps us manage both cost and timeline.

A steep lot might need retaining walls. Poor soil might require deeper piers. A long utility run affects your budget.

We flag these items up front, not after you've signed a contract.

Communication Preferences

Some clients want daily text updates with photos. Others prefer a weekly call on Friday mornings.

We align on your preferred communication cadence during the first meeting. Your time is valuable, and we respect how you want to stay informed.

What to Bring

Come prepared with:

  • Property survey if you have one
  • Photos or sketches of styles you like
  • Your ideal timeline and move-in date
  • Budget range for the overall project

Request your free consultation or read our complete What to Expect Guide.

How does land and permitting work in Comal and Kendall Counties?

We walk your lot, check utilities, slopes, and trees, then handle local permits with you. In Comal County, required permits may include OSSF and floodplain when applicable.

Early feasibility prevents rework. It also prevents cost surprises after you've invested in design.

Initial Site Walk

We confirm plat boundaries, setbacks, easements, and access first. These legal elements dictate where your home can sit on the lot.

Then we review soils, drainage patterns, and driveway approach. A wet area might need French drains. A steep drive might need switchbacks.

We identify utility runs, well locations, and septic system placement. In the Hill Country, many lots require on-site sewage facilities (OSSF) rather than city sewer.

Preserving What Matters

Tree protection and view corridors are planned during this walk. That 100-year oak in your front yard deserves a protection zone. That view of the hills deserves a wall of windows.

We map these features early so design can maximize what makes your lot special.

Permitting Timeline

We sequence county and city submittals to keep the schedule moving. Comal County requires specific permits depending on your site.

On-site sewage facilities (OSSF) need county approval. Floodplain determinations apply to certain areas near creeks and rivers.

We handle the paperwork and coordination. You stay informed without drowning in bureaucracy.

For complete permit requirements, visit the Comal County Engineer's Office.

Luxury kitchen in a KC Custom Homes residence with a marble waterfall island, warm wood cabinetry, pendant lighting, and a large window overlooking the property in New Braunfels Texas.

What You Need

Gather these documents before the site walk:

  • Current property survey
  • Soils report if already completed
  • Utility availability letters or confirmations
  • HOA guidelines if in a restricted community

Explore homes we've built in featured communities or see our work around Canyon Lake.

What happens in design and selections?

You design with our team using Texas Hill Country styles like limestone, metal roofing, and warm woods. We lock specs and allowances before final pricing.

Defined selections keep schedule and budget on track. Changing your mind mid-construction costs time and money.

Floor Plan and Elevations

Floor plan development comes first. We start with your room count, flow preferences, and lifestyle needs.

Do you need a main-floor primary suite? A separate casita for guests? An oversized garage for your truck and toys?

Elevations follow the floor plan. Hill Country style often features limestone or stacked stone, standing seam metal roofs, and deep covered porches.

You see 3D renderings so you can visualize your home before we break ground.

Structural Review

We conduct a structural review tied to your specific site conditions. That review from your site walk feeds directly into engineering.

Expansive clay soils need post-tension slabs. Slopes need proper drainage. High wind exposure needs stronger roof connections.

Selections Process

Exterior and interior selections are organized by room and system. You choose:

  • Roofing, siding, stone, and trim colors
  • Windows, doors, and hardware finishes
  • Appliances and plumbing fixtures
  • Lighting throughout the home
  • Flooring, tile, and countertops
  • Cabinets, paint colors, and trim details

We guide you through decisions in logical order. Roof color before shutter color. Tile before grout.

Locking It In

Allowances are reconciled before you sign the contract. If you're over on countertops, we adjust elsewhere or update the budget.

Final sign-offs are stored in your project folder. No confusion about what you picked six months ago.

Design Resources

Browse our gallery for inspiration, or explore designer floor plans we've created for Hill Country living.

What is the construction timeline in Central Texas?

Most custom homes here run 10 to 16 months from permit to keys depending on size, complexity, and site. Recent national data shows 10.1 months in 2023 and 9.1 months in 2024 on average.

Realistic timelines drive better decisions. They also prevent frustration when reality doesn't match unrealistic expectations.

National Context

According to the National Association of Home Builders, average single-family construction time was 10.1 months in 2023 and 9.1 months in 2024. These averages reflect builds from permit to completion across the country.

In the Texas Hill Country, our typical range runs 10 to 16 months. Larger homes, complex sites, and higher-end finishes extend the timeline.

Phase-by-Phase Breakdown

Pre-Slab (Weeks 1-4)
Site prep, excavation, form work, and plumbing rough-ins. Your foundation crew pours the slab after inspections.

Shell Construction (Months 2-4)
Framing goes up fast. Roof, windows, and exterior doors follow. Your home starts looking like a home.

Mechanical Rough-Ins (Months 4-6)
Electrical, plumbing, and HVAC rough-ins happen while walls are open. Insulation and drywall come next.

Interior Finishes (Months 6-9)
Trim carpentry, cabinet installation, tile work, paint, and flooring. This phase shows your design choices coming to life.

Finals and Closeout (Months 9-12+)
Final inspections, punch list, orientation, and warranty paperwork. You walk through every system and every detail.

Spacious custom walk in closet in a KC Custom Homes residence with built in white shelving, center island with marble top, wood flooring, and designer storage accents in New Braunfels Texas.

Setting Milestones

Milestone dates are set at the pre-construction meeting. That's when you meet the site superintendent and walk the schedule together.

You know when to expect framing, when to make final tile selections, and when to plan your move.

Project Example

See the complete build story for Trailhead View, or read our detailed timeline explainer.

How do we handle energy efficiency and inspections?

We build for our climate with tested targets and third-party verifications as specified. Energy features align with current ENERGY STAR guidance where selected.

Comfort matters. Durability matters. Lower operating costs matter.

The Texas Hill Country delivers hot summers, occasional hard freezes, and plenty of humidity. Your home needs to handle all of it.

Foundation Systems

Air sealing, insulation, and duct best practices form the foundation of energy performance.

We seal the building envelope to reduce air leakage. Conditioned air stays inside. Hot attic air stays out.

Insulation is installed to manufacturer specifications. Compressed insulation loses R-value. Gaps create thermal bridges.

Ducts are sealed and tested where specified. Leaky ducts waste energy and reduce comfort.

Mechanical Systems

High-efficiency HVAC equipment is sized to actual loads, not old rules of thumb. An oversized unit short-cycles and dehumidifies poorly.

We use Manual J load calculations for proper sizing. Your system runs longer, quieter cycles that maintain comfort.

Efficient windows carry climate-appropriate ratings. Low-E coatings, proper U-factors, and Solar Heat Gain Coefficients all matter in our region.

Testing and Verification

Blower door testing measures whole-house air leakage. Duct leakage testing finds problems before drywall covers them.

Third-party verification happens when you select an ENERGY STAR package. An independent rater confirms performance.

For current program details, visit ENERGY STAR Single-Family New Homes.

Design for Climate

Orientation and shading strategies balance sun and views. Deep porches provide shade in summer. Strategic window placement captures winter sun.

We design for the Hill Country climate, not a generic textbook.

Explore our awards including recognitions for quality and craftsmanship, or review our complete process.

How do closing, warranty, and post move-in support work?

We complete orientation, create a punch list, and schedule follow-ups. Your warranty and service process are explained in writing with contacts and timelines.

You know who to call. You know what to expect. You know how we stand behind our work.

Orientation Walkthrough

Orientation includes a full systems walkthrough with your superintendent. You learn how everything works before you need to use it.

Where's the main water shutoff? How do you reset the HVAC filter reminder? Which breaker controls the well pump?

We walk every room, every switch, and every system. Questions are answered on the spot.

Luxury primary bathroom in a KC Custom Homes residence with a black freestanding tub, gold fixtures, glass shower, and double vanity with marble countertops in New Braunfels Texas.

Punch List Process

A written punch list assigns dates and owners to remaining items. Touch-up paint goes here. Cabinet alignment goes there.

Items are tracked to completion. You're not left wondering if something was forgotten.

Most punch items close within two weeks. Occasional special-order items take longer.

Warranty Documentation

Warranty documents and service request steps are provided at closing. You receive:

  • Builder warranty terms and coverage
  • Manufacturer warranties for appliances and systems
  • Service request procedures with contacts
  • Timeline expectations for different issue types

Everything lives in one folder. Digital and paper copies.

Seasonal Care

Seasonal care tips are tailored to Hill Country homes. Foundation watering matters during drought. Gutter cleaning matters during oak pollen season.

We provide a maintenance calendar specific to your home and your systems.

Ongoing Relationship

Optional check-ins after move-in give you peace of mind. Some clients want a 30-day and 6-month visit. Others call only if something comes up.

We're here either way. Building your home starts a relationship, not a transaction.

Store all documents and contact info in one folder. You'll thank yourself when you need to reference a warranty two years from now.

Contact our team with questions, or request a free quote to start your project.

Frequently Asked Questions

How long does it take to build a custom home in Texas?

Plan on 10 to 16 months for most custom homes in our region. Your specific timeline depends on home size, site complexity, and finish selections.

Recent national averages ran about 10.1 months in 2023 and 9.1 months in 2024 from permit to completion.

A 2,500-square-foot home on a simple lot with standard finishes runs faster than a 5,000-square-foot home on a steep lot with custom everything.

Read our complete timeline explainer for phase-by-phase details.

What is the first step?

Start with a free consultation and lot review. We scope your goals, budget, and schedule before any design work begins.

Bring your property survey if you have one. We'll walk the lot together and discuss possibilities.

No pressure. No obligation. Just honest conversation about your vision and our process.

Request your free quote today.

Do I need land before we talk?

No. We can help you evaluate lots or find the right property.

That said, early lot input improves your plan, views, and budget. A flat lot with utilities at the street costs less to develop than a steep lot with a long utility run.

We build across the Hill Country in communities like Vintage Oaks, George's Ranch, and Canyon Lake. See featured communities where we're active.

What permits are required in Comal County?

Requirements vary by site. Comal County lists permits such as on-site sewage facilities (OSSF) and floodplain when applicable.

City of New Braunfels requires different permits than unincorporated Comal County. We confirm exact needs during feasibility.

For the most current requirements, visit the Comal County Engineer's Office.

We handle coordination and submittals. You stay informed without managing paperwork.

Can I make changes during construction?

Yes, through written change orders. Changes can affect timeline and cost, so we document everything.

Want to add a skylight after framing? We price it, you approve it, and we update the schedule.

Written approvals protect both of us. No confusion about what was agreed to.

Learn more about how we handle changes in our process.

How much should I budget?

Recent clients invest from $600K to $4M+ depending on size, site, and finishes.

A 2,000-square-foot home with standard finishes sits at one end. A 5,000-square-foot home with luxury everything sits at the other.

We align allowances to your target early in the process. No surprises halfway through design.

Contact us to discuss your specific budget and goals.

Do you build on my lot?

Yes. We build on your lot across New Braunfels, San Antonio, Boerne, Canyon Lake, and nearby areas.

We also help with lot selection if you're still searching. Our knowledge of local communities, builders, and development patterns helps you choose well.

See recent work around Canyon Lake and New Braunfels.

What styles do you build?

Texas Hill Country, modern farmhouse, and clean contemporary are common requests. Every home we build is unique.

Hill Country style features limestone or native stone, metal roofing, and deep porches. Modern farmhouse adds board-and-batten siding and clean lines. Contemporary pushes toward larger windows and minimal trim.

Browse our gallery for inspiration across all styles.

Ready to Start Your Custom Home Journey?

You've seen the process. You understand the timeline. You know what we deliver.

Now it's time to talk about your specific lot, your goals, and your vision for a custom home in the Texas Hill Country.

Three ways to move forward:

  1. Request a free quote to schedule your consultation and lot review
  2. Contact our team with questions about your project
  3. Explore our portfolio to see homes we've built across the region

KC Custom Homes serves New Braunfels, San Antonio, Boerne, Canyon Lake, and the greater Texas Hill Country. We're a family-owned builder with 25+ years of experience and a 2024 TAB Grand Award for excellence.

Let's build something beautiful together.

Additional Resources

Featured Projects:

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Planning Guides:

Current Opportunities:

This article was written by Ryan Castro, President at KC Custom Homes, and reviewed by Chris Castro, VP & Director of Sales. The Castro family has built custom homes in the Texas Hill Country for over 25 years, earning recognition including the 2024 TAB Grand Award and multiple Greater San Antonio Builders Association honors.

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