For more than two years, Honeygrow's headquarters under the Market-Frankford El in Fishtown has had a sign on the door warding off would-be customers.

The former warehouse at Front and Oxford Streets houses the offices and test kitchen of the fast-casual stir-fry/salad specialist.

But Honeygrow is creating a takeout window that will be open only for customers who order via Honeygrow's app — not at the window — and for delivery via Caviar.

HG + MG Test Kitchen will serve a menu based on selections from Honeygrow and its spinoff, Minigrow.

The company says it is targeting an Oct. 1 launch with initial hours of 11 a.m. to 3 p.m. weekdays.

Its 27th Honeygrow will open Sept. 7 in Christiana, Del. It has six Minigrows.

Front Street facade under the El of Honeygrow’s headquarters.
KYLE HUFF
Front Street facade under the El of Honeygrow’s headquarters.