512-677-3992 greg@flennhomes.com
Custom Homes And Remodels

A Place to Call Home

Your home is the backdrop where the memories of your life are created. Whether you’re looking to build your dream home or remodel your existing home, we’re there to make your dream a reality.

Dreamception Design Program
Dreamception Logo

You’ll love participating in our Dreamception Design Program where you’ll sit down with our designer and see your home vision spring to life.

“Because every concept should begin with a dream!”

New Custom Homes

In the greater North Austin area (Round Rock, Georgetown, Leander, Salado), it’s becoming common that your lot may be the real value and not the existing structure. Or perhaps, you are no longer willing to deal with an aging home. Either way, we can build the custom home you desire on your existing land in Georgetown or Round Rock.

Custom Home Remodeling

Many North Austin area homeowners are deciding to stay in their existing home in place of moving. Use the equity in your home to remodel or add on to your existing space. Our team will help you see the incredible possibilities available in creating the space you’ve always wanted.

Formal Estimate Guarantee
We guarantee that the price you contractually agree to is the price you end up paying.

On-Time Guarantee
Once we contract a finish date, we guarantee that we’ll be finished on time or we’ll pay you until the build is completed!

Limited Lifetime Labor Warranty
Your satisfaction in our work is paramount to us – which is why we warranty our work.

We’re the exception

Learn Why So Many Have Built With Flenn

With more than 40 years of experience and over 75 homes built or remodeled in the Georgetown, Round Rock and North Austin areas, you’ll have the peace and satisfaction of working with a team comprised of an experienced Construction Engineer, Building Designer, Interior Designer, and Real Estate Agent.


Click on our warranty and guarantees to learn more about the reason we have so many satisfied homeowners!


Meet Greg Flenniken

Greg is a construction engineer and has been building homes for more than 40 years!

Having a family gives me a better understanding of what families need in a home. I work with clients to maximize the return on their investment and offer decision-making help when needed. I truly enjoy the process of helping families take their dreams and make them a reality in a home that fits their unique lifestyle. We look at every project as truly Building Works of Heart.”




  • Greg Is A Great Contractor. Working With Him Was A Breeze. Just When I Thought Things Were Getting tough, Greg Was There To Help To Get The Job Done. Respectful, Patient, Prepared, And Just A Great Character In General. I Wish More Contractors Could Operate The Way Flenn Custom Homes Does . I Look Forward To Working With Greg In The Future. Thanks For Every Thing !!!Service: Remodeling

    thumb Chris Fuson
    June 18, 2021

    We have been so pleased with the beautiful job Greg's crew has done. We have enjoyed our home being with family and friends in a comfortable environment. I especially have enjoyed my lovely, perfect and functional kitchen. I would also like to add: we have only ever done small remodeling jobs on our homes never a complete remodel and design. I was NOT looking forward to this project in any way! Greg Flenniken was such a huge help with his encouragement keeping me on schedule even when I was at my worst. Greg is a man of integrity and moral character. Bringing that to the table combined with his years of experience completes a beautiful home that brings years of enjoyment to the home owner.

    thumb Sherry Weber
    November 18, 2020

    Not only did Greg and his crews do excellent work, he went above and beyond on several occasions and we are delighted with the result. He was very easy to work with, and he and the subs that he used were sensitive to our needs and requests all along. We are so pleased with the work, and frequently recommend him to people looking for a builder or remodeler.Service: Remodeling

    thumb Mary Partridge
    May 18, 2021
  • We have had a lot of work on our house, including major remodeling, done by Flenn Custom Homes. The quality of work has been consistently excellent. We have been completely satisfied with all the projects that Flenn Custom Homes has completed for our home. We admire Greg Flenniken for his integrity and commitment to excellence.

    thumb Jack Hammans
    November 18, 2020

    We were in a bind and needed someone asap to repair a water faucet after the winter storm. Greg was very helpful and came out the next day and repaired it. Quick, courteous and professional. Would recommend.Service: Repair water fixtures

    thumb Anbuselvi Mahadevan
    March 18, 2021

    Positive: Punctuality ,  Quality ,  Responsiveness ,  Value Greg Flenniken has proven over and over that he knows what he is doing, has the resources to deliver, and makes sure things are done right the first time! A real professional we highly recommend.

    thumb lawrence parks
    November 18, 2020

Request Free Builder Consultation

(512) 677-3992

1850 Round Rock Avenue
Suite 500
Round Rock, TX  78681

Building Custom Homes in Georgetown, Round Rock, and North Austin.