Harper Design Build is an architecture and interior design firm located in New York City. We believe that thoughtful and inspired design can create places that feel both timeless and distinctly contemporary.

We are dedicated to creating extraordinary places—spaces grounded in timeless craftsmanship and shaped by a belief that architecture is a shared experience capable of enriching daily life. Our work celebrates the connections between people, place, and design, and the enduring joy that thoughtful spaces can inspire.

Since our founding in 2004, we have been known for our commitment to quality, collaboration, and meaningful design.

Interior view of a modern room with a wooden stairway, potted plant, and decorative pottery.

Projects

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Interior of a modern house showcasing a curved staircase with black railings and wooden steps, a brick wall, a grand piano, and abstract wall art.

Brick townhouse with two black doors, staircase entrances, black iron railings, and a small front yard with plants, trees, and a sidewalk.

Sunlit modern living room with glass walls, black framing, wooden furniture, colorful geometric rug, black chairs, and artwork on the wall, with views of outdoor greenery and pool.