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D'Asign Source: Defining Luxury Design-Build on Duck Key
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Date:
08 May 2026
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Duck Key offers a rare kind of living. Framed by turquoise water, expansive views, and a quiet sense of exclusivity, it calls for homes that feel both refined and effortless. The Brenner Scheel & Casey Team, the #1 selling team on Duck Key, knows this better than anyone – and for clients building or acquiring here, they often recommend one firm by name: D’Asign Source.
For decades, D’Asign Source has been shaping that experience throughout the Florida Keys. As a fully integrated design-build firm, the company brings architecture, construction, interiors, landscape design, and furnishings together under one roof, creating homes that are cohesive from concept through completion.
A Design-Build Approach Tailored to Duck Key
For homeowners on Duck Key, luxury extends well beyond finishes. It’s about how a home lives day to day. How it captures natural light, frames waterfront views, encourages airflow, and transitions seamlessly between indoor and outdoor spaces.
It’s also about durability. Coastal homes in the Florida Keys must withstand sun, salt air, and shifting conditions without sacrificing design integrity.
D’Asign Source approaches these challenges holistically. Every decision, from site planning and architectural lines to material selection and landscape integration, is made with the environment in mind. The result is a level of cohesion and long-term performance that’s difficult to achieve through a traditional, fragmented building process.
That same philosophy extends to the systems behind the scenes. The same team behind D’Asign Source also founded Coastal Source, an outdoor lighting and audio company focused on performance in harsh coastal environments. It reflects a consistent mindset applied across every project: build it to perform, and build it to last.
Designed for Indoor / Outdoor Living in the Florida Keys
The firm’s work reflects a deep understanding of Keys living: open, livable layouts. Natural materials that weather beautifully over time. Carefully considered transitions that allow spaces to flow effortlessly from interior gathering areas to pools, terraces, and waterfront views. Outdoor environments are designed as true extensions of the home, supporting everything from entertaining to quiet retreat. On Duck Key, outdoor living isn’t seasonal. It’s central to everyday life.
Custom Homes Designed Around You
Equally important is the level of customization. No two homes are approached the same way. D’Asign Source tailors each project to the client, the property, and the lifestyle it’s meant to support. Whether maximizing deepwater frontage, creating privacy within a neighborhood setting, or framing long-range ocean views, every detail is considered.
The result is a home that feels personal, purposeful, and enduring. Never formulaic. At its core, this is what defines D’Asign Source’s work on Duck Key: a quiet, confident approach to luxury. Thoughtful, balanced, and deeply connected to place. For Duck Key, that distinction is everything. A well-designed home should capture the beauty of the water, the calm of the islands, and the ease of a life lived close to the sea.
Showroom & Design Studio in Marathon
Located just minutes from Duck Key, the D’Asign Source showroom and design studio in Marathon offers clients a hands-on way to engage with the design-build process. From materials and finishes to furnishings and outdoor living elements, clients can explore options in a curated environment. The goal is simple – bring clarity and confidence to every decision while keeping the entire project aligned.
Featured Homes on Duck Key
Below are several examples of custom homes designed and built by D’Asign Source on Duck Key, each reflecting a unique interpretation of Florida Keys luxury living:
The Melaleuca House
A refined waterfront residence where clean architectural lines and natural materials are complemented by a fully realized outdoor living experience. An expansive pool and sun deck, outdoor kitchen, and fireplace gathering area create a series of spaces designed for both entertaining and quiet retreat. Lush tropical plantings from D’Asign Source Botanicals frame the property, reinforcing a sense of place and a seamless connection between architecture and landscape.
The Breakwater
A 6,200-square-foot coastal modern residence designed around gathering and connection, where open living spaces, warm neutral tones, and natural materials create an inviting, livable backdrop. Expansive glass openings lead to a fully realized outdoor environment, complete with a covered loggia, 18-foot quartzite bar, outdoor kitchen, and infinity-edge pool that runs parallel to the ocean. Designed for both everyday living and large-scale entertaining, the home seamlessly blends comfort, craftsmanship, and performance, with integrated Coastal Source lighting enhancing the experience throughout.
The Jasmine House
A 5,300-square-foot West Indies–style waterfront home with 168 feet of deepwater frontage, designed to capture panoramic Atlantic views and sightlines to the iconic Long Key Bridge. Elevated above the floodplain to withstand coastal conditions while preserving uninterrupted water views, the home pairs expansive indoor-outdoor living with layered materials and architectural detailing that feel both refined and relaxed.
The Seaview House
Set along the Atlantic, this 4,500-square-foot residence was designed as a refined island retreat that balances resilience with warmth. Full concrete construction, impact-rated glass, and a standing-seam metal roof create a durable coastal envelope, while expansive openings, custom detailing, and layered interiors bring in natural light and frame uninterrupted ocean views. Indoor and outdoor spaces flow seamlessly, supported by an elevated pool, outdoor kitchen, and integrated Coastal Source outdoor audio and lighting, creating a home that feels both enduring and deeply connected to its setting.
The Still Waters House
A tranquil coastal residence designed around privacy and calm, where soft transitions between indoor and outdoor living create a true sense of retreat.
Building or Renovating on Duck Key
For those considering building or renovating on Duck Key, the difference lies in the approach. A well-designed home doesn’t just reflect its surroundings. It enhances how you experience them every day. It considers the environment, the lifestyle, and the longevity of every decision.
D’Asign Source guides clients through that process from start to finish, offering a fully integrated design-build experience rooted in decades of local expertise. The result is more than a home. It’s a complete living environment, designed to endure and to be enjoyed for years to come.
To explore Florida Keys luxury real estate market and browse current listings, contact the Brenner Scheel & Casey Team – and visit their YouTube channel for exclusive property walkthroughs and lifestyle content from the Florida Keys: Flakeys Luxury Homes
Kristen Brenner, Tierce Scheel, and Margie Casey are Certified Luxury Home Marketing Specialists with a combined track record exceeding $600 million in closed sales. As the #1 selling team on Duck Key, they are known throughout the Florida Keys for their expertise, discretion, and results-driven approach. Their focus spans waterfront estates, luxury residences, and high-performing vacation properties from Key Largo to Key West. With a centrally located office along the Overseas Highway in the Middle Keys, the team is well-positioned to serve buyers and sellers across the full length of the island chain.
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