Rated 4.43 / 5 from 7 reviews
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Mangum Custom Homes By focusing on these tenants, Mangum Lewallen is easily able to adapt to market trends and consumer perceptions. With constant internal self-evaluation, Greg and Brad's teams evolve where needed to exceed expectations and "raise the bar" for customer satisfaction and quality.

Combining forces with trusted partnerships, Mangum Lewallen provides a cohesive theme of detail and character for your home that feels alive and fully reflects your personality and style.In applying core values to the principles of designing, building, remodeling and constructing your dream home, the team at Mangum Lewallen follows three tenets based on dedication to you and making your vision a reality.
Services
Green Building
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To build green or with a sustainable focus means to think of not only today, but also the future. In making it a direct intention to minimize impact a home or building has on environment, space, energy, materials and resources, can find a balance with design that ensures utility, durability, and comfort within the area around it.
Ranch Construction
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With a rambling blueprint, usually one story and wider than it is deep, a traditional Texas ranch home wonderfully combines simplicity with intricate personality. Ranch homes are generally divided into living and sleeping wings, which creates a more focused design plan.
Custom Construction
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Custom home development and construction process is rooted in concept and design. With many different styles, layouts and aspects of the home to think about and imagine, Mangum Lewallen understands it can be overwhelming for some homeowners and has created a team and process that turns home building from a daunting task to an enjoyable and fulfilling one.
Reviews (7)
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Linda Mallardi
Nov 28, 2021
We are local homeowners that had water damage to a room and bathroom. Prior to selecting Greg, we obtained multiple proposals from contractors we interviewed. We know quality when we see it, given our combined years of legal, contracting and project management careers. You will simply not find a better construction partner than Greg Mangum. The project was on time and under budget.

The project manager and sub-contractors were all professional, well skilled and great to work with. They respected our space. Greg and team addressed and corrected any issues that came up immediately. We highly recommend Greg.
Ivan Moses
May 09, 2021
I have worked with Mangum Builders on several projects over the years, and I am consistently impressed with the finished project. As someone who deals with MANY builders, it is always a pleasure to work with Greg and his crew. They have clean, orderly job sites. Their scheduling is well regimented, and they make working with them easy. We were tasked with making some custom doors for a project in Rosedale which I visited yesterday for the first time after the job was done.

It was very rewarding to see our product integrated so seamlessly into the overall build. The fit and finish of every aspect was really spot on. I really can't recommend Mangum Builders enough.
Debbie Levi
Feb 09, 2021
We are new to Austin, having moved here to be closer to family! Our Architect recommended several local builders to build our new home. After interviewing 3 different builders, looking thru their reviews and portfolios, we decided to go with Greg Mangum of Mangum Builders! Greg was a pleasure to work with and full of knowledge! He helped us on more than one occasion with suggestions for cost saving solutions for our build without compromising "The Look" we were going for! Greg was always very easy to get in touch with whenever we had questions or concerns, as we were living in another city during most of the build process, even sending us photos of the ongoing build status! Greg even came out to our home and personally helped me design my master closet.

Definitely extra points for that! We would recommend Mangum builders to anyone who is looking for a custom builder or a home remodel! Our Gorgeous Contemporary Hip Country home is the Envy of the neighborhood! Debbie Levi
Burleson De Lago
Nov 02, 2020
Critical: Professionalism Greg Mangum let rain water get in the house and then blamed us, the floor contractor, for finish bonding issues. I offered to meet him in the middle for redoing the floors, we refinish at no charge and he moves furniture and touches up the quarter round. Wasn't good enough for him so he left me a terrible review. Shady guy. Service: Install flooring
Nancy Beesley
Nov 02, 2020
The Mangum team built our custom home in 2011 in West Lake Hills. We had heard that building a home would be stressful and challenging but we found the process both easy and efficient. That is largely because of Greg and his amazing team. He helped us navigate the challenges of permitting, communicated clearly and honestly throughout. He also has an amazing aesthetic which while not his core responsibility added incredible input during the finish out and design phase. We finished the 4400 square foot house in 10 months and we were under budget. I can't recommend Mangum Builders enough!
Brenda Nowlin
Aug 10, 2020
We used Greg Mangum builders for an addition on our home. The quality of his work is amazing. We have had many people comment about how beautiful the addition is and how seamlessly it flows into our home. With his years of experience and eye for building he was able to help us with a few minor changes that worked better for our space. He and his crews were easy to work with and very professional.
Lainey Fisher
Nov 22, 2017
Mangum Lewallan builders are the bomb! Quality work with a keen attention to detail. I enjoyed working with them very much and would highly recommend them for your next project.