Midcentury modernism has become hot so fast, supply has outpaced—and outpriced—many admirers. One couple, Angela Finney-Hoffman, 31, and Barkley Hoffman, 37, aim to change that with their inventive new West Town shop, styled with 1950s, ’60s, and ’70s furniture at astonishingly reasonable prices. Old and new rub elbows throughout the space, which is also filled with eco-friendly accents. "We didn’t want an antique store—we wanted a home store that was a mix of old and new," Finney-Hoffman says. Case in point: A Kroehler Danish sofa ($1,300) retains its original green upholstery atop new foam and webbing, while a 1950s settee ($1,300) comes completely re-covered in a sleek gray fabric. Part of the key to affordability: Finney-Hoffman looks for style over superstardom. "I don’t necessarily go for the big-name pieces," she says. "If the proportions are right, then it doesn’t have to be a Herman Miller."

With artistic accents and just a smattering of kitsch, the cavernous space, formerly home to Olde Good Things salvage, eschews the usual stuffiness of antique stores. Accessories include vintage globes and stunning screen prints from 1941 ($750 framed) as well as sculptural bamboo mobiles from a young design company, the San Francisco-based Adrift (from $148). Other great finds: a red fiberboard table that resembles the bottom half of an ostrich ($500) and Thomas Paul rugs ($680).

The couple called upon their considerable creative backgrounds for the venture. Hoffman oversees the visual merchandising for Lucky Brand Jeans in the Midwest, while Finney-Hoffman worked for Holly Hunt for four years in furniture and lighting design and show-room styling. "I love mixing materials—ceramics, woods, textiles," she says. "It’s all about texture and proportion. That’s something Holly Hunt mentored me in." Look for her to put this background to good use: Within six months, the pair plan to debut their own line of home furnishings.

1819 W. Grand Ave. 312-829-6122, post27store.com

Photograph: Eric Hausman