company office building; company premises
Refers to a building owned or used by a company, especially an office building; often used in business, news, and real-estate contexts.
The new company office building will be completed next month.
The headquarters building is in front of the station.
This manufacturer built a new company building last year.
The company plans to relocate its office building next month.
The new company building will be completed next spring.
会社 means the company as a business entity, while 社屋 refers only to the physical building the company uses.
A Sino-Japanese compound written with 社, associated here with a company, and 屋, meaning building or house. The spelling directly reflects the idea of a company building.