Built to Last Forever
Custom homes, major renovations, and historic preservation — crafted with the care that The Hamptons deserves.
Kevin Warren established Fifth & Dune with a single standard: build homes worth passing down. Not simply well-constructed. Not merely beautiful. But homes that become part of a family’s story for generations to come. From ground-up custom construction to sensitive historic restoration, everything we do is guided by a genuine commitment to craft, transparency, and lasting relationships.
Legacy
The homes we build are meant to be passed down. That standard shapes how we approach every site, every material selection, and every decision in between.
Precision
Every project we undertake is approached with the understanding that what we build will outlast the building process — which makes the details non-negotiable.
Integrity
We say what we mean and follow through on what we’ve promised. That consistency is what allows our client relationships to extend well beyond the project itself.
View Our Projects
Let's Build Your Legacy
If you’re planning a custom home, major renovation, or historic restoration in the Hamptons, we’d like to hear about it.
David Gallo
“Fifth & Dune performed an A+ job in all aspects on our project, from bidding through post-completion-follow-up. They won the job to build our house against two others of the highest-end builders in the Hamptons, due to their thoughtful and detailed bid, clear enthusiasm and desire to take on the project, and strong reputation in the broader building community. All members of their team were extremely professional and a pleasure to work with. Their collaboration and teamwork with the architects and designer on the project was seamless, they tackled challenges and obstacles along the way creatively and economically, and, most importantly, the finished product is outstanding. Lastly, their follow-up work post-completion has been executed with the same responsiveness as when we were still in mid-construction. I would absolutely work with Fifth & Dune again, as would the architects and designer on our project, and I give them my highest recommendation.”
Katherine Rayner
“Fifth and Dune have worked with me on two major projects. For both ventures, they were efficient, creative, and a joy to work with. Their understanding of what my architect required, and their ability to work with the proposed plans allowed for much faster project completion. The results are unsurpassed. Their knowledge of the complex code regulation and their relationship with officials, made the final steps of the construction process seamless. Both I and my designers give them our enthusiastic recommendation.”
John Hill
“I’ve worked with Fifth & Dune on multiple projects for over six years. Our collaborative work has been a success as well as a pleasure. We started with a last-minute bid solicitation that salvaged a time-sensitive project because it arrived with detailed construction planning and accurate price estimate. On this project and subsequent work, Fifth & Dune established excellent rapport and shared respect with our architects, legal teams, and clients. Complicated projects only succeed through constant coordination and the support of a dedicated team of engineers, contractors, and designers. Fifth & Dune were attentive and responded flawlessly. The first project was executed and completed on-time and within budget. Fifth & Dune and their team continue ongoing maintenance and provide valuable guidance. [Their] years of experience in fine home building make Fifth & Dune ideal for all projects.”
Sharon and Colin Morris
“We have worked with Fifth & Dune for the past six years. They have completed projects both small and large for us. Often, these types of projects can be stressful, but we had the most incredible experience with the entire time involved. From the early days of budget and timeframe discussion to the finished project, everything went smoothly, professionally, and timely. They work with great integrity and the attention to detail and complete transparency in all regards was outstanding. We recommend Fifth & Dune whole-heartedly, one would be foolish not to use them for any building needs.”
Robert Marc
“I’ve known Fifth & Dune Partners for the past five years. Together they oversaw an extensive renovation of my home in the Hamptons that was completed flawlessly, on time, and on budget. I highly recommend Fifth & Dune Partners for high end construction, renovations, and maintaining homes with expert knowledge, honesty, and respect.”
Contact Us
Fifth & Dune works with a select number of clients each year across custom construction, renovation, historic preservation, and estate management throughout the Hamptons. We welcome conversations with clients who share our standards — reach out through the form below or contact us directly.
