So you missed your chance at snagging this Dupont garage when it hit the market for $900,000 in late April? No worries: The place just dropped its price. To recap, this 1,008-square-foot brick garage, built in 1921 and located in an alley behind the O Street Mansion, is completely unfinished and has “no real street address,” according to the listing. Two developers have already expressed interest in the property, which is zoned for moderate-density residential development, according to listing agent Jennifer Smira. “It could be a business, it could be a coffee shop, it could be a yoga studio,” she says.