One of our favorite projects mentioned in the AIA/COTE 2007 list of Top Ten Green Projects was perennial Inhabitat favorite Stephen Holl’s Whitney Water Treatment Plant located in New Haven, CT. This project is fantastic in many ways, but the real beauty of it lies in the fact that the 30,000 square feet water treatment facility is sitting under the largest green roof in the state of Connecticut.

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  1. Ixat May 22, 2007 at 10:38 pm

    OMG!! I live in New Haven, and I had no idea!

  2. Richie May 4, 2007 at 8:38 am

    Cool design. No handrail on external staircase seems like a poblem, and code violation, however. An examination of the Steven Holl images page ( , click on ‘watercolor’)
    shows that there’s a semingly very green approach being used to treat this water. Does this facility also then add Chlorine, Alum and other chemicals as well ? This project seems to build on the pioneering work of Dr. John Todd and his ‘living machines’ water treatment systems ( ). Is this an accurate observation ?

  3. Hun Boon May 4, 2007 at 2:06 am

    I took a look at the other 9 winners, and this has the most organic and natural looking shape.

    “Inverse raindrop”? Looks more like “lightbulb” or “keyhole” shape to me. 😉

  4. Henry Julier May 3, 2007 at 11:14 pm

    This is right across the dam from my house. The neighborhood had no clue what was being built there… I didn’t even know untill I happened upon the project in an exhibit. It’s a really nice space and has several paths and benches for dog walkers and other people like that.

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