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 renovations, kitchen renovations and bathroom renovations.

Everything that I've ever seen before and after from Hierarchy Architects & Designers shows excellent work. I highly recommended T.J. Costello & Co. to provide the utmost in customer service. He also scores extra style points for being based in my old hometown of Manhasset, NY.

In a next life, I'll have a lifestyle that allows me to employ TJ and team full-time. Such nice work.

What's new?

Before and after refacing exterior of a dated Colonial home with Azek PVC trim and James Hardie plank siding.

Posted on Feb 17, 2021  •  Facebook

Days like today have us dreaming of summer staycations by the pool. With an abundance of socialization areas, this backyard patio and pool makeover was designed for entertaining!

Posted on Feb 01, 2021  •  Facebook

Throwback Thursday to the many wonderful Thank You letters from local second grade students we proudly displayed in our studio window. We were grateful for the opportunity to take part in Munsey Park's "Guess Who's Coming To Read" day with other local professionals, doctors, firemen/ firewomen, and...

Posted on Jan 14, 2021  •  Facebook

Small changes can go a long way! Painting the trim black completely elevates the front facade of this home.

Posted on Dec 10, 2020  •  Facebook

Happy Thanksgiving to you and your families! 🍁🥧

Posted on Nov 26, 2020  •  Facebook

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