Peek into our portfolio


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DEPARTMENT OF TRANSPORTATION SE, Washington DC

This privately owned and managed building is located in the burgeoning new Capital Riverfront neighborhood. When the greenroof was installed nearly ten years ago it was one of the first and largest in the country. Still considered one of the largest greenroofs in the District, Pratum carries over its sustainable management plan on this big scale project by continuing to adhere to the value of not using toxic chemicals in its operations.  Property Management celebrating winning the Washington DC 2017 Toby Award, which is the highest recognition for the best managed building in the area. 


Summer 2012 (Before)

Summer 2012 (Before)

Summer 2014 (After)

Summer 2014 (After)

Legg Mason Tower, Maryland

The project that started Pratum in 2012! It took two years to replant and regrow the roof.  The project's challenges included: no water access, harsh microclimates, tray installation, and heavy weed pressure. Today the roof is both beautiful and resilient.


Spring 2014

American Society of Landscape Architects, Washington DC

Starting in 2013, while Pratum was in its infancy, we were giving the privilege of maintaining this jewelbox of a greenroof in the heart of Chinatown. This is a diverse, showpiece roof  -- sloped plantings, partial irrigation and plantings under a floor grate system. Since the building's renovation in 2016, the greenroof has continued its evolution in dominant plant species. 


Summer 2014

700 SIXTH STREET NW, WASHINGTON DC

DC buildings commonly have both high-visibility and low-visibility greenroofs. Our fierce respect for maximizing real estate value has led us to tailor our protocol to address the specific needs of each section. We have been maintaining the greenroof on this International Toby Award winning building since 2014. After the long hot dry spell in 2016, much of the Sedum Album on the lower roof died out and the entire roof went into a trimming regime.


Summer 2014

NATIONAL INSTITUTES OF HEALTH, MARYLAND

Working under a roofing manufacturer, we took over maintenance in 2014 as an experienced local contractor. This irrigated greenroof has extensive and semi-intensive sections and features medicinal plants. A gardener's touch and lots of TLC are what makes this roof a success. Recently NIH rebid the roof and maintenance was handed over to a GSA contractor.