Powerhouse

Architect: ISA - Interface Studio Architects

Location: Philadelphia, Pennsylvania

Category: Multifamily Housing (category three)

Powerhouse carefully fits a dense cluster of 31 super-energy-efficient units into an urban block in Philadelphia.

www.is-architects.com

Powerhouse carefully fits a dense cluster of 31 super-energy-efficient units into an urban block in Philadelphia. The design navigates existing fabric along a sloping site with a series of building typologies including single family townhomes, duplexes, and two small apartment buildings. A wide variety of unit types provide diversity of living options in keeping with the character of the surrounding community, and at a range of prices to meet the needs and budgets of residents. Expanding on the Philadelphia tradition of entry stoops acting as mediators between public sidewalks and private residences, a sequence of generous entry platforms navigate grade changes, entry stairs, and basement windows, with fabricated handrails designed by a local artist. Stormwater is completely managed onsite with green roofs and rain gardens along the curb line. The buildings are super energy efficient, with all 31 units achieving LEED Platinum certification.

"I appreciate the effort to keep existing building[s] and incorporate them into the new development."—Jury comment

Additional information

Owner: Equinox MC / Postgreen Homes

Engineer (structural): Larsen and Landis

Engineer (civil): Cornerstone Consulting Engineers & Architectural, Inc.

Engineer (MEP): J and M Engineering

Energy star consultant: Steven Winter Associates

Artist: Jenny Sabin

Jury

Katherine Williams, AIA, (Chair) Fifth Generation Holdings, Falls Church, Virginia

Joe Digrado, AIA, Danielian Associates, Irvine, California

Blake Held, AIA, Blake H. Held Architect, PLLC, Honeoye Falls, New York

Charles Mudede, The Stranger (Journalist), Seattle, Washington

David Perkes, AIA, Mississippi State University GCCDS, Biloxi, Mississippi

Image credits

POWERHOUSE_01_photocredit Sam Oberter_sm

Sam Oberter

POWERHOUSE_02_photocredit Sam Oberter_sm

Sam Oberter

POWERHOUSE_03_photocredit Sam Oberter_sm

Sam Oberter

POWERHOUSE_04_photocredit Sam Oberter_sm

Sam Oberter

POWERHOUSE_05_photocredit Sam Oberter

Sam Oberter