Hierarchy Architecture + Design, PLLC

We are a Long Island based architecture firm serving the Tri-state area, and beyond. We provide our customers with a wide range of architectural services from large ground-up projects and full scale renovations, to smaller scale kitchen renovations and custom millwork solutions. Simply put, we help you build your dream home. We are committed to providing you with the best customer service, we are there for you at every step of the design and build phases. Planning and building a home can be complex and demanding on your time but we will work with you to make this as pleasant and trouble-free as possible. T.J. Costello is Hierarchy's Principal Architect and distinguishes himself by being the only dual Certified Architect and Kitchen Designer on Long Island. TJ and his team of experts have over 35 years experience in the industry, and specialize in creating timeless homes that are seamlessly integrated into a neighborhood's existing context. We recognize that each client is unique, and we customize our service for each home to match your individuality, bringing your vision to life. We specialize in (but are not exclusive to) creating custom residential, primary & vacation homes in modern, traditional or transitional styles. We design our homes with the utmost care and attention to detail, ensuring our clients are ecstatic with the finished product. TJ graduated from Cornell University, and also has certificate of Construction Managment from NYU, and is a CKD Certified Kitchen Designer with NKBA, and is a certified CLIPP Certified Living In Place Professional. TJ has presented projects at over 38 different Town Boards & Village hearings, and as has personally served in various roles for local ARB, BZA committees.