512-677-3992 greg@flennhomes.com

Custom Home Remodel

Love your neighborhood but wish your home was a little different or a little bigger? We’ll help you create what you never knew you always wanted!

Dreamception Design Program
Sit down with our designer and see your home vision spring to life.

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!

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

New Space. New Possibilities.

A Flenn Custom Home is the result of true collaboration between owner and builder!

Many 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.

You’ll absolutely love the Dreamception Design Program. You’ll sit down with one of our incredibly talented interior designers and see your home vision spring to life! When homeowners first consider a remodeling project, many of them worry what it will look like and often struggle with trying to figure out how to get the look they are going for.  With Dreamception, our designer is able to come into your home, review your ideas, and create several different design options to maximize your budget and give you the greatest return on your investment. You’re then able to view these plans in a virtual 3D model so that you can see what the finished build will actually look like – all before any physical construction or major costs are even considered!

Additionally, with a licensed Real Estate Agent on staff, we can additionally provide our clients with facts pertaining to the housing market which will help them determine the best path to moving forward, whether they want to sell or remodel.  Having the ability to provide our clients with options of what their current house can look like and comparing it to what is currently on the market is priceless. We pride ourselves on honesty and integrity and will go above and beyond to make sure our clients are satisfied.

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!”

Our Process


The first step is coming up with a strategy. We will discuss your needs and desires along with your budget parameters and develop a strategy that gets you where you want to be.


An addition or remodel should coexist seamlessly with the existing space. Textures should match, inside and out. It takes planning, but it is most certainly achievable.


Building a dream in the physical world is the purpose of design. Weather you have Architectural plans already or need our Building Designer to draw them up, we will be certain to have your designs 100% to your satisfaction before construction begins.


 One of the advantages of working with a custom home builder is our clients get to be part of the entire process.  They are not left to wonder what is going on. We have weekly updates keeping everyone in the “know” at all times.

We reclaimed this home in Taylor, Texas, and turned it into our client’s absolute dream gem! The images illustrate the process with before images, the 3D rendition or design, and the incredible results!

You may also see more of this project on the following project page.

Recent Projects

We had an extensive remodel project on a family home and had total confidence in Greg Flenniken’s ability as a builder and as a person to complete the job to our high standards and to be able to combine the old and new features in a fluid way. He exceeded our expectations.

Greg was responsive, conscientious, accountable, and reliable. Even when the project was complete, we could count on him to address details that needed attention. He is honest and hardworking, a builder whom I’ve already recommended to friends, family members, and clients. We’re very happy with the work that was done and Greg’s job of overseeing every aspect.


My husband and I had a very particular plan in mind when we set out looking for a contractor to update our kitchen. We have two children and didn’t want to be in the midst of chaos when the kitchen was remodeled. We asked Greg and his team if they would complete the remodel while we were gone for 10 days on vacation. They agreed to the task and somehow accomplished it! They redid our kitchen from floor to ceiling and did an impeccable job with only minor touchups to be completed when we arrived home. I give Flenn Custom Homes an A+ for customer service and timeliness. They do what they promise. I have never had a better experience with a contractor. And the quality work they did is the best part. Everything was perfect. I don’t think you can get a better contractor anywhere. Thank you!


My name is Dudley Porter and I have been in construction most of my adult life.  I am the President and Owner of Porter Products and have been selling building products and contracting roofing and home building products for over 40 years.  I have known Greg at Flenn Custom Homes and done business selling him and delivering windows and doors for his projects for over 3 years.

It has been my opinion and still is that Flenn Custom Homes delivers first class Home Building and Remodeling projects with exceptional results exceeding construction expectations.  The many hours of endless detail required to estimate a building project and doing what he says he is going to do are paramount in his business model.

I would recommend Greg and his co-worker, vendors and suppliers for contracting jobs today and in the future for building projects throughout the Central Texas Region.  Plus he is a first class guy.

Dudley Porter

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.