On a quiet street in Brooklyn’s posh Cobble Hill, neighbors of 377 Union St. have grown increasingly agitated at the owner of the building — which has sat empty and neglected for four years.
Construction materials litter the front and back yards, and the owner has done nothing to make this quiet street more livable.
The owner, the neighbors discovered some months ago, is none other than Paul Manafort, the millionaire former campaign manager for Donald Trump, who finds himself being investigated by the FBI for his connections to the Kremlin as part of the Trump campaign.
The 68-year-old politico is also being probed by New York Attorney General Eric T. Schneiderman and Manhattan DA Cyrus Vance Jr.
The two were reported to have started an investigation into Manafort’s real estate dealings earlier this month.
The Trump consigliere, who resigned from that post in August, has been at the center of the Trump-Russia investigation in part for his business dealings with pro-Russian ex-Ukraine Prime Minister Viktor Yanukovych from 2004 to 2010.
While the US and state probes have naturally dominated media reports, much less is known about Manafort’s curious history on Union Street, one of the most desirable locations in the borough.
The story of the brownstone took shape after The Post interviewed more than a dozen people connected to the property.
Most of them asked to remain anonymous because they feared that speaking about Manafort and his family would endanger their reputation or safety.
Manafort’s connection to No. 377 begins in 2012 when the three-family property in Carroll Gardens, one of the hottest neighborhoods in Brooklyn, hit the market.
The four-story Italianate brownstone came with “all the bells and whistles,” like arched marble mantles and a Jacuzzi, according to a real estate listing at the time.
While Union Street sees more car traffic than the others in the neighborhood — it’s a major thoroughfare that cuts to Eastern Parkway and…