The Big Window Labs space is built for collaboration. It's open space on two floors with a big window and a big patio-- there are two, small private conference rooms on the second floor. It also features a full bathroom and full kitchen so that the firms inside can do things like run or bike to work and take a shower afterwards, or go down the street to the Yes! Organic Market to get ingredients for a great lunch rather than eating take-out. It's located right above the Looking Glass Lounge in Petworth in Washington, DC and one block from the Georgia Avenue/Petworth Metro Station.
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And yes, there's actually a big window there. See below