ADU Construction In Harker Heights, Belton, Temple, and more of TX
Build an ADU with us to add value to your home, create extra income, or enjoy a functional space for family and guests—all with expert craftsmanship you can trust.

Building an Accessory Dwelling Unit (ADU) isn’t just about adding space—it’s about creating freedom and opportunity within your home. Whether it’s a cozy suite for aging parents, a private retreat for guests, or even a rental space to bring in extra income, we bring your vision to life with care, precision, and local expertise.
When you work with us, you’re not just getting a new addition—you’re gaining peace of mind. Our team handles every detail, from planning to the final touches, so you can focus on what matters most: spending time with loved ones or growing your financial security. We believe in building spaces that not only look great but also truly enhance your life.

Get Your ADU Construction Done by Experts
- 100+ Completed Projects
- 5 Year Warranty
- Fully Licensed and Insured
- Google Guaranteed
Why ADU Construction Is a Wise Investment
Investing in our ADU construction service means adding value to your home and your daily life. Imagine turning your unused garage into a cozy rental unit that brings in extra monthly income—or a peaceful office space where you can finally focus.
Our work not only boosts your property’s worth but transforms how you use and enjoy your home every day. It’s practical, personal, and powerful.
3 Reasons Our Service Is Worth It
- Extra Income Potential
- Long-Term Property Value Growth
- Flexible Living Space
Upgrades Homeowners Make When Getting an ADU Built
Common Upgrades Homeowners Choose:
- Solar Panel Installations – Lower your electricity bills while making your home more energy-efficient.
- Landscaping Improvements – Create a beautiful yard that complements your new ADU.
- Home Exterior Refresh – From new siding to fresh paint, give your home a brand-new look.
- Driveway Expansion or Repairs – Ensure you have parking space for everyone.
- Smart Home Features – Boost convenience and security with smart lighting, thermostats, and cameras.
Your Home Could Look Just as Great
Your home’s transformation could be just as stunning as the ones featured below. These past projects are more than just photos—they’re proof of how dreams were brought to life. Use them as inspiration for your unique vision. Take a look at the gallery below to get a sense of the level of quality of our services:






ADU Construction Costs In Harker Heights, Belton, Temple, and More of TX
Top Manufacturers for Your ADU Dream Build
- James Hardie: Known for durable fiber cement siding, their products withstand Texas weather exceptionally well, providing long-lasting protection for your ADU.
- Andersen Windows: Their energy-efficient windows are ideal for maintaining comfort and reducing utility bills in Texas homes.
- USG Sheetrock: Reliable and sturdy, this drywall sets the foundation for walls that feel solid and look flawless.
- Sherwin-Williams: Their paints bring life to your ADU with colors as vibrant as Texas sunsets—quality you can see and feel.
- GAF Roofing: Protecting homes for decades, their roofing systems are designed to keep your family safe through any storm.
Here's What Your Neighbors Say About Us
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Kent John
Great craftsmanship and workmanship attention to detail focus oriented they do not waste time or resources. One of the best professional construction companies that I have seen in my twenty-plus years of military service.
Job well done James/chimney crew. Thank you and keep up the great work (Gill construction company). Remember the ending of the movie Casablanca, “”I think this is the beginning of a beautiful friendship”” lol. Very Respectfully, K. John
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Carol Harris
We have been dreaming of adding a big shady porch on the back of our house for a while, and Gill Construction gave us everything we wanted in our new space.
They were very easy to work with, on time with the various aspects of the project and very responsive to our requests and questions.
We are extremely pleased with the quality of the construction and highly recommend Steven and his crew. We love it !
The Benefits of Working With Us
Why Choose Us?
- Proven Expertise
- Long-Term Savings
- Stunning Designs
Effortless Steps for a Stress-Free Experience

1
Collaborate

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Build

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Enjoy

ADU Construction In Harker Heights, Belton, Temple, and more of TX - FAQ's
An ADU (Accessory Dwelling Unit), also known as an additional dwelling unit or backyard cottage, is a small, additional living space built on the same lot as your primary residence. It’s a flexible living space that can be used as a rental unit to generate rental income, an in-law suite for aging parents, or even a guest house for extended family.
ADUs are an excellent way to increase property value, provide more affordable housing options, or create additional income while maximizing the potential of your residential property.
Yes, you’ll need a building permit application to construct an ADU, ensuring it meets local zoning regulations, building codes, and permitting process requirements. From plan review fees to final inspections, we’ll guide you through every step of the process.
Our team will make sure your ADU development stays compliant with local ordinances and zoning rules, giving you peace of mind.
Most residential properties, including single-family homes, can qualify for an ADU. Local zoning rules and ADU regulations will determine if your property is eligible for creating additional living space or converting existing structures like a garage or basement into a dwelling unit.
We’ll help you navigate the ADU permits process and review your property to see if it meets requirements.
The timeline for an ADU project varies based on factors like design, permitting process, and the project’s scope. Typically, it takes a few months from start to finish, including steps like plan review, utility connections, and final inspections.
Whether you’re building a new unit or converting existing structures like a garage apartment or basement apartment, we’ll keep the process moving forward efficiently.
Costs for ADU construction depend on the size, materials, and design of the additional dwelling unit. Renovation loans and financing options are available to help with costs like building permit fees or utility connections.
We’ll provide transparent pricing and work with you to stay within your budget while ensuring your new unit meets your needs.
Adding an ADU can increase property value, which may raise property taxes. However, the potential rental income from a dwelling unit or the increased resale value often outweighs the cost.
We’ll help you understand how building an ADU on your residential property may impact property taxes so you can make an informed decision.
Absolutely! Many property owners choose to convert existing structures like garages or basements into accessory dwelling units (ADUs).
These conversions are often more affordable since the basic structure is already in place, and they create additional space for rental units, guest housing, or flexible living space for family members. We’ll assess your property to ensure it meets local codes and ADU regulations.
We do! As experienced ADU builders in Texas, we handle everything, from addressing required documentation to managing the building permit application process. This includes zoning regulations, plan review, utility connections, local codes, inspections, and final approvals. You can rely on us to manage the details, so you don’t have to worry.
Building an ADU or accessory structure offers several benefits. It helps address the affordable housing crisis, adds much-needed housing stock in urban centers, and provides more affordable housing options for extended families or adult children.
Whether you’re adding an in-law suite, backyard cottage, or tiny house, ADU construction is a smart way to make the most of your primary house while contributing to the real estate market. Plus, it’s a great option for creating habitable space that works for you and your lifestyle!

Steven Gill
Make the Choice You'll Wish You Made Years Ago
Investing in your property with our help isn’t just about building—it’s about creating something useful, valuable, and meaningful for your family. Many homeowners tell us they wish they had reached out sooner after seeing how transforming a space boosted their lifestyle. Whether for extra room, a guest house, or additional rental income, this decision directly benefits your everyday life and future.
We’re here to guide you every step of the way. Contact us at (254) 369-5978 and let the team bring your ideas to life. We’re proud to serve families right here in the Harker Heights, Belton, and Temple areas, building trust and spaces that matter in Texas communities.