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philly green housing, Tag
- The Ridge: Net-Zero Energy Mixed-Use Passive House Project Gets Thumbs Up In Philadelphia Tue, 13 Dec 11, 8:44amPhiladelphia just gave the go-ahead for a large mixed-use multi-family housing project that is urban friendly and energy frugal. Conceived by design/build group Onion Flats, The Ridge’ will be the largest Passive...