Walker ADU
Palm Beach Gardens, FL · SIPs on ground screws
Design-build · Disaster-resilient housing
Disaster-resilient homes, built in 45 days, anywhere.
SIPs construction on ground screw foundations — off-grid ready, rated for 180+ mph winds, and delivered across all 50 U.S. states and territories and 20+ countries.
Approved to deliver
United Nations contractor · UNGM #1087156
Inter-American Development Bank
U.S. DoD clearance
SAM.gov · UEI RKQ9ZHCW8P57
SIPA member
45 daysTypical build per home, five-person crew
180+ mphWind-rated structure
Grade 2Seismic rating
Off-gridSolar, battery, rainwater and septic — needs only potable water
25+ yearsDesign life
Who we build for
One housing system, three ways to put it to work.
Government & Agencies
Disaster recovery, workforce and military housing, delivered under federal, state and housing-authority procurement.
Procurement details →
NGOs & Humanitarian
Homes, clinics and regional hub outposts, built with local crews who keep the skills after we leave.
Partner with us →
Developers & Communities
Affordable for-sale and rental housing, ADUs and mixed-use, on a faster schedule than stick-built.
See the process →
Recent work
Built and in design.
Fellsmere, FL
Single-family home with detached garageRendering
JLFS Cabin
Two-bed, one-bath raised home with decks · exterior options, interiors and floor planRendering
Multifamily & mixed-use
From single homes to whole communities.
We design and deliver multifamily and mixed-use housing for developers, housing authorities and redevelopment agencies, from garden-style apartments to courtyard communities.
Reference images show the building types we design for. They are not JLFS projects.
Discuss a multifamily project
On the global stage
UN General Assembly week, New York.
In September 2026, James Filbey spoke on the panel “Building the New Infrastructure for Global Health” at the Global Health Futures Forum during UNGA week, alongside Stephen Keppel, President of PVBLIC Foundation (moderator); Stefan Kulik, COO of Helfie AI; and Sanskriti “Sans” Thakur, Chairman & CEO of Tower Capital.
Photos: David Nicholas Photography / PVBLIC
The system
Engineered panels on screws, not slabs.
Structural insulated panels — two OSB skins bonded to an EPS core — go up fast and seal tight. Ground screws replace the concrete slab, so we build on almost any terrain with no excavation.
- 01Assess — site, climate, codes and community needs.
- 02Design & engineer — architect and engineer of record stamp every plan.
- 03Deliver — panels, screws and systems shipped as a complete kit.
- 04Build — five-person crews, local workers trained on site, about 45 days per home.
& Sons
A family company, building for the next generation.
The name carries the mission: build something that lasts, for generations. A family-led team with a licensed architect and engineer of record behind every project.
James L. FilbeyFounder & CEOJames L. Filbey is the Founder & CEO of J.L. Filbey & Sons Capital Partners, a Florida-based construction and development firm. JLFS builds disaster-resilient, off-grid affordable housing using structural insulated panel (SIPs) technology, deployable in as little as 45 days, engineered for 180+ mph winds, and designed to serve communities that conventional construction cannot reach. The firm holds DoD clearance, UN contractor status, and Inter-American Development Bank approval, with active projects across the United States and in more than 20 countries. The company's name carries its mission: building something that lasts, for generations.
Laurae J. WestwoodExecutive Vice PresidentLaurae Westwood serves as Executive Vice President of J.L. Filbey & Sons Capital Partners, where she oversees international logistics and leads the operational teams that keep project deployments moving across the United States and more than 20 countries. A master team builder and one of the architects of the JLFS brand, Laurae has been instrumental in shaping the company's identity, culture, and growth from the ground up, bringing both strategic vision and hands-on leadership to every stage of the organization's development.
Patricia CullerExecutive DirectorPatricia Culler serves as Executive Director of J.L. Filbey & Sons Capital Partners, where she manages the full operational backbone of JLFS projects. From coordinating crew deployments and client relationships to overseeing material delivery across a global supply network, Patricia keeps every moving part aligned and on schedule. Her ability to manage complexity across multiple active projects simultaneously makes her an indispensable force behind JLFS's rapid growth and a trusted point of contact for clients and partners around the world.
Kaylen J. FilbeyProject Liaison ManagerKaylen J. Filbey serves as Project Liaison Manager at J.L. Filbey & Sons Capital Partners, coordinating between field crews, clients, and the JLFS leadership team across active project deployments. A fully qualified plumbing and gas engineer with extensive on-site experience, Kaylen brings hands-on technical credibility to his role, understanding what it takes to deliver a build not just on paper, but on the ground. He represents the next generation of JLFS leadership and the continued legacy the company was built to create.
Andy RoehlArchitect of RecordAndy Roehl is a licensed architect with more than 22 years of experience and the founder of Moonlight Architecture. Moonlight Architecture focuses on solutions that are high-performing, durable, and energy-efficient, properties that genuinely improve the way people live, for years to come. Andy serves as Architect of Record on JLFS project developments, bringing that same commitment to every community the company builds for.
Hover over or tap a photo to read their bio.
News & insights
All posts →From the JLFS blog
Affordable Housing Solutions for Modern Living: Cost-Effective Housing Options
In the face of rapid urbanization, climate change, and economic fluctuations, the demand for cost-effective housing options has never been more critical. Governments, NGOs, and private enterprises are increasingly tasked with addressing the urgent need for sustainable, affordable, and rapidly deployable housing. This challenge is particularly acute in disaster relief scenarios and underserved communities where traditional construction methods often fall short in terms of speed, cost, and...
Discover Effective Low-Cost Housing Strategies for Rapid Relief and Sustainability
Addressing the global challenge of housing affordability requires innovative, scalable, and sustainable approaches. As urban populations swell and natural disasters displace communities, the demand for low-cost housing strategies has never been more urgent. Governments, NGOs, and private enterprises must collaborate to implement solutions that not only provide shelter but also promote resilience and long-term viability. This article explores practical, effective methods to deliver affordable...
Affordable Housing Project Planning: Affordable Housing Solutions that Make a Difference
Addressing the global need for affordable housing requires a strategic and multifaceted approach. The challenge is not merely to construct dwellings but to develop sustainable, rapid-build, and cost-effective housing that can serve disaster relief efforts and underserved communities alike. This article explores the critical aspects of affordable housing project planning, highlighting innovative methods and practical recommendations that can transform lives and communities. The Fundamentals of...
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