"firm design" is correct and usable in written English.
You can use it when you want to describe a design plan or strategy that is planned out and resolute. For example, "The firm design of the new restaurant makes it inviting to customers."
He also suggested that the firm design a transparent machine to reveal the complex inner mechanics of the binoculars, an idea that the company is exploring.
Mr. Swerdlowe, a principal in the firm Design Seven Associates, declined to speculate on whether the rebuilding would actually include office space.
In 1914 Astor had the latter firm design a model market at 95th Street and Broadway, meant to improve the delivery of fresh food to West Side residents and increase farmers' profits.
Two independent divisions of the same firm design internal incentives, and decide whether to publicly disclose their performances.
The couple behind the L.A. firm Design Vidal often use cement tiles because they "add a lot of personality" and are durable, Karen said, but when that application proved too expensive for the apartment project, they decided to emulate Moroccan-style cement tiles with paint.
Rapp and Rapp, a noted architectural firm, designed the building.
I-Beam Design, another New York firm, designed a shelter made from wooden shipping pallets.
The firm designed the current renovations, and Glenn Arbonies designed Tower East, the adjoining 12-story building.
"So we created a work of unambiguously modern architecture," said James Stewart Polshek, whose firm designed the renovation.
Kevin Roche John Dinkeloo & Associates, the New Haven architectural firm, designed both 10 and 20 Westport Road.
John Copelin, whose architectural firm designed the club took the writer on a tour of the facilities.
