827 N 5th was a custom design for a real estate investor interested in improving the energy efficiency, design response, and construction quality of new builds in Northern Liberties. True to its Passive House roots, the tight enclosure features strategically-placed triple pane windows and exterior insulation (I’m guessing about that piece but wanted a second factoid—it could be something else). Investing in an improved enclosure yielded both energy benefits and a snowfall-like interior quiet, despite the bustling corner location. Natural light and outdoor connections were priorities that were creatively achieved without sacrificing privacy from surrounding properties. Systems include solar panels, Zender ERV ventilation systems, a hybrid Geospring water heater, dual-flush toilets, LED lighting, and EnergyStar appliances. A variety of reclaimed materials were used for sliding closet doors, a floating staircase, countertops, and exterior fencing for garden and balcony.