Project Completion Year
Project Location: City
Project Location: State
Project Location: Country
United States of America
Contributing to the revitalization of its emerging West Loop area, the JeffJack Apartments replaced a neglected parking lot and warehouse parcel with residential vibrancy. The design of the 190-unit apartment tower is sophisticated, social, and sustainable. Contextual to its industrial neighbors, the 15-story L-shaped building is graciously set back with a large expanse of glass. The glass wall along Jackson Boulevard is accentuated by carefully orchestrated mullions rendered in bright green, evoking Illinois prairie grass that blanketed the land two centuries ago, while also expressing a new identity in the district. Along Jefferson Street, uniform punched openings on the glass façade nod respectfully to nearby, one century old manufacturing structures. Exposed concrete on the exterior and interior “soft-loft” ceilings contrast with glass and refined finishes and furnishings for a modern and lively aesthetic. The 230,000 SF infill building is LEED Gold certified, with south and west facing balconies that double as sunshades, a 4th floor eco-garden, high efficiency systems, and landscaped areas that serve as storm water detention.
The plan includes a mix of units and layouts varying from studios to one and two-bedrooms, taking advantage of natural light and views from the glass façade. Top floors, typically reserved for private penthouses, are instead devoted to shared social areas, indoor pool and sundeck to afford all tenants the enjoyment of skyline views. At the streetscape level, the public lobby occupies the corner typically given over to commercial use, and the front façade is set back in a welcoming gesture.
Sustainable Design Intent and Innovation
The 230,000 SF building, certified as LEED Gold, has many energy efficient elements including balconies facing south and west that double as sunshades, and heat pumps that heat and cool the apartments. The window wall utilizes a high performance reflective double insulated glass to keep the exterior envelope tight, yet provides high quality day lighting in the living spaces.
The building also offers green “non-roof” covered parking, which reduces the heat island effect. Within the garage, there is also preferred parking available to those residence with low-emitting vehicles. For tenants without cars, the building offers a spacious bike storage room and is conveniently located near several means of public transportation. JeffJack features a water efficient landscape and features active and drought resistant vegetation in the outdoor spaces. Within the residential units, energy efficient LED lighting, low-flow water fixtures, regionally sourced materials, low VOC materials, recycled materials, and high efficiency glazing were all used. The building performance metrics include 30% energy use reduction by Efficient Measures, 28% carbon emissions reduction, 55% potable water use reduction, and 90% of construction waste was diverted from landfills.
Energy and carbon reduction strategies at JeffJack Apartments include improvements to thermal envelope, interior and exterior lighting power reductions, high-efficiency condensing boilers, hybrid water-source heat pumps, variable frequency drives (pumps and fans), demand control ventilation, self-shading balconies, and a naturally ventilated enclosed garage. The predicted EUI in kBtu/sf/yr excluding on-site renewable energy contribution will be 82.5, the predicted EUI in kBtu/sf/yr including on-site renewable energy contribution (without carbon offsets) will also be 82.5, the predicted % regional energy reduction per Energy Star Target Finder will have a total percentage improvement over the baseline building design (ASHRAE 90.1-2007) at 29%.
All within a ½ mile radius, JeffJack has access to a variety of locations for daily errands, entertainment, education and public safety. These include Chicago-Kent College of Law, Boys & Girls Clubs of Chicago, National Hellenic Museum, Chase Bank, CVS Pharmacy, Chicago Fire Dept., Walmart Neighborhood Market, Marianos, Whole Foods, Heritage Green Park, and Old Saint Patrick’s Church. This building also has access to 6 bus routes, 4 railways, and a water taxi within the same ½ mile radius allowing for easy transit throughout the city. In the building, there are 133 parking spaces for a 190 units (.7 spaces/unit), which is the zoning minimum requirement. JeffJack has earned a WalkScore of 91.
The JeffJack project achieves storm water quality control by utilizing best management practices and green infrastructure treatment trains to treat 86% of the site. The site is completely covered by the building. There are two roof levels that are treated with three trains of BMP’s. Train 1 includes runoff from the Green Roof area at the lower roof deck. The runoff is then routed to catch basin at the ground level. Train 2 includes permeable pavement with an open graded stone. This runoff is routed through a catch basin at the ground level. Train 3 treats runoff from standard roof at the upper level and is treated by first BioClean BC-DF10 downspout system and then by running through a catch basin at the ground level. The afore-mentioned processes combine to provide a total suspended solids removal rate of 86%. 100% of rainwater is detained on the two roofs and slowly released to the city storm water sewage systems. 0% of the waste water is reused on site. The total calculated fixture regulated potable water use is 3,636.05 kgal/year. From a baseline of 6,201.47 kgals, JeffJack has a 41% reduction of water use in all fixtures.
The following materials chosen all meet the allowable VOC content:
- All Flooring and Non-Flooring Adhesives & Sealants.
- All Interior paint, coating, primer, and sealers.
78.95% of the following products used have compliance with their listed certification standard:
- All indoor carpet meets the CRI Green Label Plus Standard
- All ceramic tile and Mineral-based flooring meet the CA Dept. of Health Standard
- Vinyl Flooring, Rubber wall base and Linoleum Flooring all meet the FloorScore Standard
Of the total 456.05 tons of construction waste, 412.13 tons were diverted from landfill, which is equivalent to 90.38%.
Design Architect (FIRM)
Thomas Roszak Architecture