About Us

Tankhouse is a New York-based design-development firm with over 30 years of collective experience in architecture, urban planning, development and construction.

Formed in 2013 by partners Sam Alison-Mayne and Sebastian Mendez, Tankhouse was built on the belief that design and development are symbiotic disciplines, and that the best results emerge from an integrated and holistic approach.

The studio is located on the historic DUMBO waterfront in Brooklyn.


Sam Alison-Mayne


Sam is a real estate and construction specialist with 12+ years of experience. Prior to founding Tankhouse, Sam was a construction manager at Sciame where he specialized in large-scale building projects in downtown Manhattan.

Sam earned his master of science in Real Estate Development from Columbia University’s Graduate School of Architecture, Preservation and Planning (GSAAP) (2013) and his bachelor of arts in Philosophy from the University of California at Berkeley (2005). Previously, Sam was an Adjunct Scholar and an Adjunct Professor at CURE, an urban think tank at Columbia University, and currently serves as a mentor for MsRED candidates.

Sebastian Mendez


Sebastian is a licensed architect with 16+ years of experience. Prior to founding Tankhouse, Sebastian was an Associate Partner at Foster + Partners New York where he lead the design and project management for a range of North and South American projects spanning luxury residential, cultural and commercial design.

Sebastian earned his master of science in Architecture from the University of Buenos Aires (2002) and has completed coursework at New York University’s Schack Institute for Real Estate Development. Sebastian previously held teaching positions at the University of Buenos Aires and the Boston Architectural College.

Courtney Avery

Project Manager

Courtney Avery was raised in Albany, New York to a family of contractors and builders. She holds a degree in Architecture from Lehigh University and a Master in Real Estate Development (MsRED) from Columbia University.

Go-Woon Seo

Director of Architecture

Go-Woon is from South Korea. She is a registered architect with over 18 years of experience in the United States, working in both Los Angeles and New York City.

Duolin Kong


Duolin is from Wuhan, China. She holds a Bachelor of Architecture degree from Wuhan University and a Master of Science in Architecture and Urban Design from Columbia University. She has studied and worked in four different countries (China, France, Japan and the US).