The three signature moves that define a quality brownstone restoration are opening the roof, digging out the cellar, and widening the staircase to bring light into the dark middle.
O'Brien always does three things to every brownstone: he opens the roof with a bulkhead, excavates the cellar for usable below-grade square footage (which doesn't count against floor area ratio), and widens the central staircase. These moves solve the brownstone's inherent problem — darkness in the middle where there are no windows — by pulling light down through the core. ✦ AI generated
Mark O'Brien · My First Million · 2026-07-21 · original ↗
starts at this moment · 10:56
This two things that I do. I like to go onto the roof. I like to finish or three things. The roof, the cellar, and I widen the staircase. So you can kind of tell that I the there's more of a gap because brownstones are notorious for being a little dark in the middle because there's no windows in the middle typically. So I widen the staircase and I put a lot of light and a bulkhead on the top so you get light down the middle [...] I also think it's important to get as much usable space as you can. As much as this will be finished and this is basically free square footage because you know in terms of Floor area ratio, they don't count a base because it's below grade.
verbatim transcript · starts at 10:56
10:56things. The roof, the cellar, and I widen the staircase. So you can kind of tell that I the there's more of a gap because brownstones are notorious for being a little dark in the middle because there's no windows in the middle typically. So I widen the staircase and I put a lot of [music] light and a bulkhead on the top so you get light down the middle and then this is all you
11:17know original. >> Those bricks are those original? >> Yeah. So and this also >> So these bricks are 140 years old. Yeah. >> That's pretty awesome. >> So that's another thing. I expose the brick. So this has sheetrock on it when I buy it. So I ripped the sheetrock down or not sheetrock plaster. But usually the plaster starts cracking and it decays against the >> So 140 years ago it was 1880, right?
11:37Yeah. >> Yeah. Uh >> or 1890. >> Yeah. >> So someone made that in 1890. That's pretty crazy. >> Yeah. Where do you see the the seller? The seller is literally rock, horseair, and mud. >> Let's see it >> is the is the is the way they made these foundations. Anyway, so this is the this is a typical rubble wall, right? So you got um rocks rocks and and then
12:00>> I grew up in a basement like this and it smelled exactly like this. >> Yeah, it's funny. I love it. Um so I wanted to keep all of that exposed. But >> I also think it's important to get as much usable space as you can. As much as this will be finished >> and this is basically free square footage because you know in terms of Flor
12:20area ratio, they don't count a base because it's below grade. So, I try to make it and right now you're not seeing it at the best. Um, I I got to put baseboard on, finish the floor, and and really spruce it up. So, it feels like it's real space. It's not It's not a >> So, how much you think this home will sell for? >> 6'2. >> What type of person would buy this
12:38house? >> What kind of person? >> Like a What would the job be? >> Um, probably like, you know, Yeah, I get a lot of creatives here in Brooklyn. >> Like actors. >> Fort Green. No, more like people like these days in social media and doing some some kind of media business. >> That's crazy. Maybe you'll be buying a $6 million home in Brooklyn. >> So, this is a rental basically. So, you