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Meet our Team!
 

Hierarchy Architecture & Design PLLC is an architecture firm based in Manhasset, NY on the north shore of Long Island. Our company specializes in creating timeless designs that are seamlessly integrated into the home and neighborhood's existing context. Aesthetically, we are known for Clean Modern designs with clean and classic proportions, as well as Transitional and Traditional home designs. We provide our clients with a wide range of architectural services from large scale projects, like brand new ground-up homes, to smaller more detailed projects like custom millwork, and everything in between including interior & gut renovationskitchen renovations and bathroom renovations. One of the more distinguished services we offer is the restoration of old Tudor and Colonial homes in the Greater New York area. Whatever your architectural needs are, we are here to help. Our support extends well beyond the design phase as we are with you at every step of the home planning, designing and construction processes. Our mission is provide a strong foundation for your dream home.

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A commitment to excellence.
Each home is as unique as the people that live in it. 

Meet The Team

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TJ Costello

TJ is the founder and Principal Architect of Hierarchy and distinguishes himself as the only architect on Long Island who is both a member of the Architects Institute of America (AIA), and is also a certified Kitchen Designer (CKD). Originally from Boston area, TJ has lived in Manhasset for over 28 years and has served on many local community boards and charities. He is also registered in multiple states ( NY,NJ,FL) and holds multiple certifications.

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Stacey Sabatino

Stacey has over 30 years of bookkeeping experience and has been working with Hierarchy since May 2016!

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Bailey Livian

Bailey attended NY Institute of Technology and graduated in 2017. Bailey is one of our project managers and specializes in zoning. Bailey has been working with Hierarchy since November 2015! 

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Domenico Panzarino

Domenico attended NY Institute of Technology and graduated in 2022. Domenico is our newest edition to the Hierarchy Team and is working toward his career in architecture. Domenico has been working with Hierarchy since May 2022!

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George Jamalyh

George attended NY Institute of Technology and graduated in 2017. George is our other project manager and brings his knowledge and prior experience from working in an engineering firm. He has been working with Hierarchy since August 2021! 

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Anastasia Anderson

Anastasia is our only Hierarchy member who lives on the West Coast! She is our marketing person and has been working with Hierarchy since 2021!

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