FORMARCH: Architecture Meets Modern Living
Established in 1998 by founding partners Brent Leonard and Sean Webb, FORMARCH is a multidisciplinary interior design and architecture firm renowned for crafting high-end residences across the Hamptons and beyond. The firm specializes in creating elevated living spaces that seamlessly blend form and function, redefining homes as curated works of art shaped by light and scale. Have a look!
Drawing inspiration from mid-century greats, FORMARCH designs contemporary residences that are both stylish and livable. Their projects often feature crafted moments of millwork and red-cedar trims, imparting a subtle Japanese sensibility evocative of the designs of George Nakashima. In a featured East Hampton beach house, the main living area showcases a dialogue between curved furnishings—such as FORMARCH’s thin steel table, a vintage rattan lounge chair, and a Mario Bellini molded-fiberglass coffee table—and angular forms like Martin Eisler’s dining chairs, a ’60s Swedish pendant lamp, and a Guy Besnard armchair, all curated from 1stDibs. This interplay adds rhythm and interest to the space. Equally critical to the design is the intentional use of space, ensuring that each piece has room to breathe and that the environment supports the inhabitants’ lifestyle.
FORMARCH’s philosophy centers on the belief that architecture is not merely about structures but represents a poetic dialogue between space and the soul. They understand that a home serves as a vessel for dreams—a place where the mind can wander while the heart finds solace. Each FORMARCH home invites exploration, with sensitive detailing, interplay of light, and thoughtful modulation of scale fostering a profound connection to one’s surroundings.
The firm prides itself on a close-knit team of talented experts and creatives, many of whom have journeyed together for years. This collaborative approach ensures a seamless blend of artistry and craftsmanship throughout every phase of design and construction. Their architecture and interiors departments work in tandem from inception, crafting spaces that resonate with beauty and functionality. Whether engaging with clients’ own interior designers or collaborating on their own projects, FORMARCH’s goal remains to create environments that support clients physically, functionally, and emotionally.
FORMARCH’s dedication to excellence has been recognized within the design community. In 2023, they were honored as part of the 1stDibs 50, highlighting their sophisticated, livable modernism. Additionally, they were featured in Luxe Interiors + Design’s Gold List for 2025, further cementing their status as leaders in the field.
For those interested in experiencing FORMARCH’s work firsthand, their portfolio is available on their official website. They also maintain an active presence on Instagram, offering insights into their latest projects and design inspirations.
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