Hierarchy Architecture + Design

We specialize in 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.

Here at Hierarchy we are committed to providing you with the best customer service. Planning and building your dream home can be a complex and demanding process but we will work with you at every step of the design and build phases to make this a pleasant and trouble-free endeavor.

T.J. Costello is Hierarchy's Principal Architect and distinguishes himself by being the only dual Certified Architect and Kitchen Designer on Long Island. T.J. and our team of experts have over 20 years experience in the industry, and we specialize in creating timeless homes that are seamlessly integrated into the neighborhood's existing context. We recognize that each client is unique and we customize each home to match your individuality, bringing your vision to life.