Thin Flats 100% On-Site Stormwater Management


Thin Flats is an 8-unit, new construction condominium project that manages all stormwater that falls on its site, right on-site, through the combined use of: an intensive green roof systems, a 6,000 gallon cistern placed below the parking area that captures all roof runoff and yard drains and reuses it for car washing and ground level gardens, and a completely permeable paving system on all ground level open space.

Thin Flats has been awarded LEED Platinum Certification by the U.S. Green Building Council.


County: Philadelphia
Watershed: Delaware River


Onion Flats
Roofscapes, Inc.




Patrick McDonald
G.R.A.S.S. Green Roofs and Solar Systems
111 West Norris Street
Philadelphia, PA 19122

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