Need DC Rowhouse Redevelopment Cost Info

[Muju Hussain]

Any DC developers here who have flipped DC rowhouses in NE DC or Petworth DC, who'd be willing to share how much they've spent on a decent flip. Most of the rowhouses in Petworth are in the high $500k range with the ARV of $800k to $900k. Even though wholesalers say the construction cost to be $120k to $150k range, they don't sound about right. I've got one estimate from a GC, and to my surprise, the estimate came in at roughly $260k for a roughly 1400SF rowhouse (above-grade and below-grade SF) ($185/SF). Obviously, the rowhouse needed a full gut job, and they were asking $550k for the property, but at that construction price, the deal wasn't making any sense especially when there was a hard money lender involved. So, I just wanted to see how much money the developers in DC are spending on redeveloping rowhouses, so I can use this estimate to run my analysis. Any insight is much appreciated. Thanks!