The Giving Trees
Tree Pittsburgh, Headquarters & Classroom Space
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Pittsburgh, PA | 3 acres
sustainable design.
Dedicated to growing the urban forest, Tree Pittsburgh wanted a sustainable headquarters that gives employees and volunteers easy access to the trees they plant and nurture each year. Sited on a former steel mill above the Allegheny River, the simple, open building is comprised of nine double height modules, prefabricated in nearby Clarion, PA.
![](https://www.gbbn.com/wp-content/uploads/2018/04/Tree-Pittsburgh_Accent-Image-6_1220x700-1220x700.jpg)
Using prefabricated modules reduces on-site construction waste and creates a tight thermal seal for the building. The modules sit lightly on the land, anchored by foundation piles that compress, rather than displace existing soil.
![](https://www.gbbn.com/wp-content/uploads/2018/04/Tree-Pittsburgh_Double1_768x471-768x471.jpg)
![](https://www.gbbn.com/wp-content/uploads/2018/04/TreePitt_AssemblyTimeLapse_768x471.gif)
You could duplicate this anywhere. It’s a model for one of the most affordable ways to create a net zero building that doesn’t just look like a modular box.
Strategically placed doors and windows capture views and bring in light. A long, linear porch serves as an outdoor space for staff to relax and for guests to gather at an event.
![](https://www.gbbn.com/wp-content/uploads/2018/04/Tree-Pittsburgh_Accent-Image-3_1220x585-1220x564.jpg)
Photovoltaic solar panels on the south-facing roof will provide their power, helping Tree Pittsburgh achieve net zero energy. A 3,000-gallon temperature-controlled water tank provides the campus with its potable water; sensors alert staff when supply is low.
![](https://www.gbbn.com/wp-content/uploads/2018/04/Tree-Pittsburgh_Accent-Image-6_1220x585-1220x585.jpg)
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Awards
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News
![](https://www.gbbn.com/wp-content/uploads/2021/12/AIA_Black.jpg)
AIA Pennsylvania Architectural Excellence COTE Award
![](https://www.gbbn.com/wp-content/uploads/2021/12/AIA_Black.jpg)
AIA Cincinnati Architecture Honor Award
![](https://www.gbbn.com/wp-content/uploads/2021/12/AIA_Black.jpg)
AIA Pittsburgh Honor Award
![](https://www.gbbn.com/wp-content/uploads/2019/12/ArchNewsBestOfDesignAward_Black.png)