off campus/off-campus, on campus/on-campus
Standard hyphenation rules apply to these terms: when used as a modifier, either term must be hyphenated. When campus is used as a noun, drop the hyphen.
At Samford University, on-campus housing is plentiful and convenient.
Students who live on campus also find it affordable.
Off-campus apartments range in cost from $180 to $880.
That building is located just off campus on Lakeshore Drive.
Capitalize office only when it is part of an official name:
Office of Admission
Office of University Advancement
Stop by the university relations office for details.
Do not capitalize when used in a general sense or on second reference. Capitalize only when part of the name of an event or program.
Samford's orientation program is known as Bulldog Days.