No, unfortunately if you own the building you work out of, you will not be eligible to obtain insurance online.  We can assist you with obtaining a quote through our office offline.  Please contact our office and someone will contact you to arrange a quote.
This does not apply if you are working from a home office and the home is personally owned by you.  Note that this coverage does not replace the need for homeowners insurance, and this coverage does not apply to your personal liability exposure, only the liability exposure related to your home office.