Henson Architecture

Henson Architecture Henson is a New York-based architecture firm with over twenty years of repairing, preserving, and restoring buildings.

We are transforming the practice of retrofitting existing and historic buildings as a means towards carbon reduction. Henson Architecture advances the field of preservation through a hands-on approach to craftsmanship and traditional building practices as demonstrated in our award-winning, nationally recognized projects. In response to the global climate crisis and emerging technologies, HA is transforming the practice of retrofitting existing and historic buildings as a means towards carbon reduction. We believe that architecture is a collaborative effort. We are creative problem-solvers that work with our clients to develop solutions tailored to their unique project conditions and objectives - along the spectrum of Preservation of Historic Buildings, Adaptive Reuse, and Sustainable Design of new buildings. Our team brings a passion for craftsmanship into all phases of our projects. We view the preservation and re-use of existing and historic buildings as a critical practice due to the embodied carbon they contain and the results of basic life cycle analysis.

The extreme temperatures we've been experiencing in recent weeks are a reminder that we need multiple strategies for kee...
07/09/2026

The extreme temperatures we've been experiencing in recent weeks are a reminder that we need multiple strategies for keeping cool.

See some of the ways Henson Architecture thinks about the many facets of thermal comfort, as we draw from our global built heritage.

There's still time to register:
https://events.zoom.us/ev/Aiwm7LOISnunDbZ5229dtHbMS6fFZ9tLvka_dnZS-wKN0H0JS_Un~ApgytyG3bakMHTLXph5kkiPu-eqZuvLUB4pLpS6suYPQspbsuUBDQG5Syg

Hope to see you then.

This session will earn you CEUs from both AIA and GBCI.
AIA New Jersey - The New Jersey Society of Architects
Cory Trembath Rouillard

07/09/2026

Saturday East Coast Green Spotlight!

Cory Trembath Rouillard, AIA, APT RP, LEED AP of Henson Architecture will be joining us on July 10 for our annual East Coast Green Virtual Conference, where she will share insights on thermal comfort concepts and climate-specific strategies.

If you’re looking to elevate your design approach to the built environment and gain practical, forward-thinking tools, we encourage you to join Cory’s session by registering through the link below.

🔗https://events.zoom.us/ev/Aiwm7LOISnunDbZ5229dtHbMS6fFZ9tLvka_dnZS-wKN0H0JS_Un~ApgytyG3bakMHTLXph5kkiPu-eqZuvLUB4pLpS6suYPQspbsuUBDQG5Syg

The 2026 Architizer A+ Awards are now live! Please visit the site to see our project, Carnegie Hill Passive House, a Spe...
06/09/2026

The 2026 Architizer A+ Awards are now live! Please visit the site to see our project, Carnegie Hill Passive House, a Special Mention in the Residential Renovations & Additions category, as well as the other winners. Our project is one of a select few buildings in Manhattan certified to the Passive House Institute’s EnerPHit standard for deep energy retrofits of existing buildings.

https://winners.architizer.com/2026/Typology/residential-15/residential-renovations-additions-1/carnegie-hill-passive-house/

We're excited to share that the Carnegie Hill Passive House has been selected as a Special Mention in the 2026 Architize...
05/07/2026

We're excited to share that the Carnegie Hill Passive House has been selected as a Special Mention in the 2026 Architizer A+ Awards for the Residential Renovations & Additions category!

Henson Architecture's townhouse retrofit of this 1878 three-story brownstone in Manhattan’s Expanded Carnegie Hill Historic District has been certified to the Passive House Enerphit standard, the benchmark for maximizing energy efficiency, comfort, and indoor air quality. The project involved a full brownstone restoration as well as a gut interior renovation of five floors with the addition of a roof terrace. The renovation provides the new owner with a comfortable, quiet, and elegantly understated retreat, a canvas for their lives in their vibrant city.

Architizer's gallery for 2026 will go live in June.

https://www.hensonarchitect.com/award-for-the-carnegie-hill-passive-house/
Photo credit: Alexander Severin,

Good morning, Glimmerglass! You are true to your moniker today. What a beautiful day in Cooperstown for the New York Sta...
04/16/2026

Good morning, Glimmerglass! You are true to your moniker today. What a beautiful day in Cooperstown for the New York Statewide Preservation Conference. Cory Trembath Rouillard and Kyle Rosenthal will be presenting on Embodied Wisdom, Modern Data in the first session this morning.

Thank you, The New York Landmarks Conservancy, for this honor!
04/02/2026

Thank you, The New York Landmarks Conservancy, for this honor!

Join the Lucy G. Moses Preservation Awards on April 16th at the Cathedral of St. John the Divine: givebutter.com/moses2026

Hamilton Fish House, 21 Stuyvesant Street

The Hamilton Fish House is a rare, surviving Federal Style townhouse, with elegant proportions, architectural restraint, and deep ties to New York City (and Hamilton) history. It was built on land the Dutch West India Company granted to Peter Stuyvesant in 1651 and was commissioned for Peter’s great-great-granddaughter Elizabeth in 1803. Elizabeth’s husband Nicholas Fish served in the Revolutionary War and was close friends with Alexander Hamilton and the Marquis de Lafayette; the Fishes hosted Lafayette at their home in 1824.

After many uses and many owners, the property was donated to Cooper Union in the 1990s. Now it has been restored and made watertight, with many historic elements returned. Brick facades were repointed, brownstone repaired, the stoop rebuilt. The masterpiece is the new slate roof featuring arched dormers windows reconstructed with copper roofs and painted wood trim that matches the original. New, painted wood shutters with historic detailing and cast-iron shutter dog hardware complete House’s new old look.

Photo by Jack Kucy

Project Team:
The Cooper Union for the Advancement of Science and Art
DBI Projects
Henson Architecture
Old Structures Engineering
Preserv Building Restoration Management, Inc.
Jablonski Building Conservation, Inc.
KM Associates of NY

We are delighted to announce that our exterior restoration of the Hamilton Fish House has been awarded a Lucy G. Moses P...
02/16/2026

We are delighted to announce that our exterior restoration of the Hamilton Fish House has been awarded a Lucy G. Moses Preservation Award by The New York Landmarks Conservancy!
https://www.hensonarchitect.com/the-hamilton-fish-house-won-a-lucy/

Congratulations to everyone involved in the ongoing stewardship of this historic property. Congratulations to our friends and colleagues who are also being recognized this year. Thank you to the Landmarks Conservancy for this honor. We look forward to celebrating with you in April!

Even with the winter predictions of Punxatawney Phil, Staten Island Chuck, and their Queens-based fellow prognosticators...
02/09/2026

Even with the winter predictions of Punxatawney Phil, Staten Island Chuck, and their Queens-based fellow prognosticators, it's never too early to be thinking about the coming hot summer days, and the more frequent heatwaves we'll be dealing with in the years to come.
https://www.hensonarchitect.com/comfort-at-the-extremes/

Cory Trembath Rouillard will be speaking about Embodied Wisdom at the Comfort At The Extremes 2026 conference in Tucson, Arizona in May. The sixth international conference in this series, the event focuses on many aspects of habitability in extreme conditions.

Early bird registration ends on February 13.

Address

27 West 20th Street
New York, NY
10011

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12129952464

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