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As of October 2024, Sionas Architecture has proudly merged with GSAPC.

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515 MADISON AVENUE

515 MADISON AVENUE

515 MADISON AVENUE

515 MADISON AVENUE

515 MADISON AVENUE

515 MADISON AVENUE

This project is located in Manhattan, New York.

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Gregory Switzer Architecture, P.C. (GSAPC) is a uniquely positioned architecture and interior design practice
with emphasis on the holistic management of the design process.

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