511 East 86th Street – Passive House

CHA served as the owner’s project representative for the development of 505-511 East 86th Street on Manhattan’s Upper East Side. The new 22-story tower is a premier luxury rental development comprising 105 free-market and 35 affordable units. Most units feature balconies and terraces, condo-quality finishes, spacious layouts with high ceilings, and a world-class amenity package. This building will rival the best luxury rental developments in New York City.

The building is a Certified Passive House. CHA worked closely with the architect, contractor, and energy-efficient vendors to meet and maintain the rigorous requirements of the Passive House program. The new structure is one of the most energy-efficient buildings in the city.

Project summary

133K sf.

Luxury rental development encompasses 133,000 square feet.


The building includes 140 units in total.


The 22-story tower comprises free-mark and affordable units.

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Sean Sweeney, MCPPO, CCM, LEED AP BD+C & O+M

Sean Sweeney, MCPPO, CCM, LEED AP BD+C & O+M
Project Management and Construction Management Business Line Director

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Sean has three decades of leadership and practical experience in the construction, real estate, and facility management industry. He has constructed public, commercial, retail, and residential projects in more than 37 U.S. states and overseas. His expertise encompasses the employment of complex project delivery systems using emerging technologies, cutting edge construction techniques, and fast-track program development and execution.