ON THE HORIZON: Pastry chefs Barbara Black and Allison Krzyminski have an idea that a lot of neighborhoods would be lucky to claim: a one-stop shop for breakfast pastries, pizza, roast chicken, Sunday brunch and made-from-scratch chicken stock, jams and pasta for enjoying at home. A combination retail shop, caterer and restaurant, Black Market Bistro (4600 Waverly Ave., Garrett Park) is slated to open in August, with three rooms, two working fireplaces and an outdoor area for dining under the sky. Black is an executive with Black's Bar and Kitchen in Bethesda and Addie's in Rockville, where Krzyminski currently works as pastry chef. Situated between Rockville and Kensington, the location for their venture sounds like a boon to local commuters and athletes: Black Market Bistro sits in historic Penn Place, a Victorian right on the MARC train line and close to a popular bike path.

SIGHTS ON THE CITY: One of Herndon's most delicious draws is expanding to Washington -- and a much bigger dining room -- this fall. The shoebox-size SBC Cafe (2501 McNair Farms Dr.; 703-793-7388), known for its contemporary American menu and modestly priced wine list, is taking its concept across the Potomac to Dupont Circle and 2100 P St. NW, where it will replace BeDuCi Restaurant. "Some of my best customers were coming from Arlington, Bethesda and Dupont Circle," explains SBC's owner and chef Mark Sakuta, who has named his forthcoming business 21 P, after its address. The due date: mid- to late September. Following a month-long interior renovation, the 99-seat restaurant will offer SBC standard-bearers such as tortilla-crusted rockfish and braised lamb shanks, along with more upscale dishes. Regulars of the original restaurant, which Sakuta plans to keep open, shouldn't worry about the idea getting too fancy, however. At 21 P, "you can still eat a sandwich" says the chef, who plans to make available his popular Cuban and shrimp club sandwiches.