Plumbob,LLC

111 W. Norris Street
Philadelphia
PA
19122
Phone: 
(215)426-6466
Fax: 
(815)301-3431
Year Established 
2005
About the Firm 
Plumbob LLC is the Architectural arm of Onion Flats LLC, a Development Design-Build Collective.
Types of Work
Environmental: 
5%
Housing (Multi-Unit): 
45%
Housing (Single Family): 
15%
Planning: 
5%
Solar Design: 
20%
Urban Design: 
0%
Special Services 
Design/Build
Firm Personnel
Total Staff This Office: 
3
Architects (Registered): 
2
Administration: 
1
Projects 
THIN FLATS, Philadelphia, PA LEED-H Platinum MARGARIDO HOUSE, Oakland, CA LEED-H Platinum
Awards 
2010 ULI Award of Excellence: Global & Americas 2009 AIA Honor Award 2009 NAHB Project of the Year - "Thin Flats" 2009 Philadelphia Sustainability Award 2008 Emerging Voices 2008 From the Ground Up, Syracuse, NY 2007 Penn State Arts and Architecture Alumni Award
Contacts
Principals: 
Howard Steinberg, Tim McDonald
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