An Inside Look

In this week’s blog, we share a Q&A with Christoph Stump, VP Design and Construction at Trinity Financial, Inc, who provides insight into the design and construction of the largest Phius Certified project to date – 425 Grand Concourse in the Bronx, New York.

Some Background

The 425 Grand Concourse Project, designed by Dattner Architects, is a 26-story mixed-use building in the Bronx, New York. The mixed-income development includes 277 units of affordable housing as well as a medical facility, supermarket, community support space and a student services center for the City University of New York’s Hostos Community College.

The award-winning project is fully built and has been Phius Certified. It passed its blower door air sealing test with flying colors. Be sure to check our Facebook, LinkedIn and Twitter pages in the coming weeks for more exclusive looks inside the project.

For more information on the project, check out the listing in the Phius Certified Projects Database.

Some answers have been lightly edited for clarity.

425 Grand Concourse Q&A With Christoph Stump

  • 425 Grand Concourse is located in one of the poorest congressional districts, which also happens to be most impacted by pervasive asthma in the population due to its high air pollution from heavy traffic and solid waste transfer stations. What better development to be had there than a passive house which addresses both impacts? Tenants will pay less for their cooling in the summer as a passive house is very well insulated and uses highly efficient heating and cooling equipment (heating is being paid for by the developer as a function of affordable housing). A passive house also minimizes the release of harmful, asthma-triggering combustion gasses both for tenants and the surrounding neighborhood by using electricity for heating and cooling as well as for cooking, and uses filtered fresh supply air for ventilation. The current building code still allows fresh air to be provided through so-called trickle vents – holes in the window frame, but if you live in an area with high air pollution unfiltered outside air is not really healthy.

425 Grand Concourse Under Construction