Is it common for higher education institutions to offer sabbatical periods for administrative / support staff? Occurred to me that some office-based private for-profit companies offer the opportunity of sabbatical periods to their staff. 

Do most higher education institutions offer sabbatical periods for administrative / support staff?

Is the concept of sabbatical for support staff as well as for academic staff featured in your institution's HR policies as a matter of course ?

So here sabbatical is not about period off teaching and service duties for academic staff to focus 100% on research.

Sabbatical period would mean paid leave from one's usual role to achieve something different, like creating a business, or developing something innovative, to pursue one's creative talent.
Large Land-Grant University in the U.S.:


  Applications for professional leaves will be considered only from faculty members on permanent appointment (academic or annual) who have completed at least five years of active service for $UNIVERSITY at the time the leave is to be effective.


Another university in the state has a very similar policy. Beyond that, I have never heard of staff taking sabbatical leave. Occasionally going for professional development, etc. but not for that length of time.