According to Block Club Chicago, Israel Idonije stood under a ceiling of roughly 100 soft, circular light fixtures on a Thursday night in mid-September, watching people who used to drink at M Lounge walk back through the same door on South Wabash. One of them, a news producer who lives a few blocks away, told Block Club Chicago the room felt bigger than he remembered it. The chairs were new, plush green with zebra print, the lighting low enough to read as film noir. The Miles Davis portrait that had hung over the bar for twenty years was still there, moved but not removed.
The space had been closed for the better part of a year. Reginald and MaryAnn Marsh ran it as M Lounge for two decades before handing operations to Idonije's Pangea Restaurant Group last fall. In April, Idonije told Block Club he was aiming for a June reopening under the new name Martini Lounge. June came and went. The doors didn't open until the second week of September, quietly, with no formal announcement until the preview event three weeks ago.
The reopening is one part of the activity taking shape along this stretch of the South Loop.
Other New Openings Along the Corridor
During the closure, other venues opened nearby. Buttercup opened at 75 E. 16th St. in September 2025, run by the same Pangea group and focused on amaro. Chef Alex Carnovale, who also cooks at nearby Oliver's, handles a menu that includes truffle pizzettas and pistachio cake. Designer Nathan Michael gave the space butter yellow walls and lace curtains that read as an Italian café in the morning, when it's pouring Sparrow coffee, and shift into a cocktail bar by evening.
A few blocks over on Michigan Avenue, Brûlée opened in November 2025 under chef Emani Nicole Roberts, who spent years cooking privately before her mother pushed her toward a full restaurant. None of these three, Buttercup, Brûlée, or the relaunched Martini Lounge, is a satellite location of something that started in River North or the West Loop. They're independently built, within about six blocks of each other, by people who already had a stake in this stretch of the South Loop before any of them opened a register.
That matters for anyone who already lives here and has spent the past few years driving north for a decent cocktail. It also provides context for the other projects Idonije has announced.
What's Planned for the Corridor
Idonije isn't done. He's confirmed two more concepts for the corridor: a high-end Japanese cocktail lounge and Happy's Classic Ice Cream at 69 E. 16th St. Both were announced earlier this year with no firm open date attached. He's also converting the former Hudson Motor Building at 2222 S. Michigan Ave., on Motor Row, into a 154-room boutique hotel that's expected to operate under Hilton's Curio Collection, with a restaurant and event space built in. Stephen Gillanders, who partnered with Idonije on an earlier steakhouse concept in the same stretch, is involved in that project too.
Martini Lounge was initially expected to open in June and opened in September. Signature Steak at 1312 S. Wabash closed in February, about a year after it was rebranded.
The Motor Row project also depends on dining and nightlife already working in the surrounding blocks, and Buttercup, Brûlée, and Martini Lounge give it something real to point to. But if you're the kind of resident who likes to plan a weekend around what's actually open rather than what's been announced, treat the ice cream shop and the Japanese lounge as things to watch, not things to build a Saturday around yet.
What's Actually Open This Weekend
The corridor you can walk right now, without waiting on anything:
- Martini Lounge, 1520 S. Wabash Ave., open 5 p.m. to 2 a.m. Thursday through Sunday. Twelve martinis, a short cocktail and wine list, a few bar snacks. Idonije has invited some of M Lounge's old DJs back for Friday sets, and the room recently hosted a release party for musician Marcus Kentrell Brown's single "Nobody."
- Buttercup, 75 E. 16th St. Coffee and pastries by day, cocktails by night, seven days of the kind of dual identity that makes it easy to stop in twice in one afternoon.
- Brûlée, 2036 S. Michigan Ave. A different owner, a different block, the same instinct to build something that didn't already exist a mile north.
None of this requires a car or a trip out of the neighborhood. That's the actual shift here. For years, a decent night out from a South Loop address meant crossing into the Loop or heading north. Idonije said as much to Block Club Chicago when he described the neighborhood as having been treated like "the stepchild of these neighborhoods, kind of an afterthought, despite being the heart of the city." Whether or not you'd put it in those terms, the math on your own Friday nights has probably borne that out.
How the Corridor Is Taking Shape
Martini Lounge's reopening is one part of the corridor's broader development. The hotel on Motor Row is real, funded, and permitted around an actual building; the ice cream shop and Japanese lounge are also planned projects.
Buttercup, Brûlée, and Martini Lounge have each opened on this six-block stretch, and all three are now open for business. Their openings complement the announced projects on the corridor, including the planned hotel, ice cream shop, and Japanese lounge.
If you've been in the South Loop long enough to remember when M Lounge was just M Lounge, this fall is worth a visit back. If you're newer to the neighborhood, you're getting the corridor at a point where you can still watch it fill in rather than arriving after the fact.
If you're weighing what any of this means for your own address on this stretch of Wabash or Michigan, Camille Canales Group tracks how these kinds of openings show up in what buyers ask about block by block, and we're glad to talk through what it looks like for your specific building.
