About Us

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Vertical | Design+Build is proud to bring over 50 years of experience taking great care to do things right in all that we do. Our mission is to put our clients first in designing, building and remodeling exceptional homes in a fun and fully accountable design and build process. By doing so, we provide creative solutions that exceed the expectations of all stakeholders through highly collaborative, sincere and earnest hard work.

The entire Vertical | Design+Build team stands by this mission, and it is this every-step-of-the-way alignment of interests with our clients that makes our process straightforward and worry-free. We fully embrace the timeless values of accountability, reliability and efficiency and apply this approach to our work every day, taking great pride in our ability to deliver exceptional results and customer experiences.

Because we understand that the process of designing and building your home is a reflection upon everything we do, we guarantee the result to be a home that is built both to stand the test of time and to delight and impress you, your family and visitors alike for generations to come.

We look forward to earning your business and showing you why families in Sarasota and its surrounding Gulf Islands choose Vertical | Design+Build to create their legacies.

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Grant Castilow, President


At Vertical | Design+Build, our business is driven by the following core values which we bring to every custom home we create:

  • Clients First – As a Vertical | Design+Build client, rest assured that you are our number one priority.
  • Superior Quality – When you hire Vertical, you receive only the best service and quality in everything we do.
  • Collaborate Always – As a trusted partner in bringing your vision to life, we value your input and ideas.
  • Innovate to Create Solutions – Innovation is the key to our business success. No cookie cutter solutions.
  • Work Sincerely, Honestly and Have Fun! – We work diligently to bring our clients the very best results and to make it an enjoyable and rewarding experience top to bottom.


At Vertical | Design+Build, we have more than 50 years of experience in designing and building award-winning, high-end custom homes along Florida’s beautiful Gulf Coast.

Unlike traditional custom home builders, Vertical | Design+Build features an internal design studio headed by a state licensed architect and a team of interior designers, along with a construction management staff who work together in a fully coordinated process to deliver extraordinary experiences in the design and quality construction of your new home.

When it comes to designing and building your home, our approach allows Vertical | Design+Build to provide a best in class level of operational and project excellence.