57 Park Avenue, new construction circa 2016, started at $3.2 million in July, 2016, and has at empty since, slowly dropping in price. Today it dropped to $2.3. I’ve always cautioned against using an original asking price to calculate value, and this house is small (2,500 sq.ft. up, additional bedroom and bath in basement), a bit cramped, and on a tiny yard, but $2.3ish is a fair price for this street. Plenty of recent comps to justify it.
Worth a look, in my opinion, if this is your price range.