James Koster Architect is a renowned architectural firm based in New York City, offering exceptional architectural services since 2003. Our team of knowledgeable architects is dedicated to delivering unique and thorough architectural solutions for both residential and commercial projects. From residential apartment, brownstone, and loft renovations to commercial and development projects, we cover a broad range of architectural work.

At James Koster Architect, we pride ourselves on our ability to develop design concepts rooted in the unique context of each project, the aspirations of our clients, and the functional and budgetary requirements. We do not promote a specific architectural style but rather focus on creating a synthesis of elements that result in truly one-of-a-kind projects. Led by Principal James Koster, who has vast experience and expertise, our firm has earned a reputation for excellence.

James holds a Master of Architecture from Princeton University and is a member of the American Institute of Architects. With a passion for architecture and hands-on experience in construction, James ensures that each project is executed with the utmost attention to detail. Browse through our online portfolio to view a curated selection of our projects and let us craft a tailor-made design that meets your unique needs.

Contact us today to learn more about our services