Architecture is the thoughtful making of spaces.  Louis Kahn, 1957

Duncan Architect PLLC is a full-service architecture firm located in Brooklyn, New York. Whether it is the new construction of an energy-efficient Manhattan condo, a gut renovation of a Brooklyn brownstone, or international Passive House consulting, we will work with you to create beautiful spaces that meet all of your requirements.

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View a 12-story apartment building in Upper Manhattan (Hamilton Heights) by Gregory Duncan working with Jeffrey Cole Architects.

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Construction photo of a new condominium building in Manhattan. Design and project management by Gregory Duncan for Jeffrey Cole Architects.

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South Harlem multifamily by Gregory Duncan working with Jeffrey Cole Architects.

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Kitchen design by Gregory Duncan working with Jeffrey Cole Architects.

See Duncan Architect PLLC’s retrofit projects.

Email greg@duncanarchitectpllc.com to get started with a new construction project.