No, not without the proper permitting.
If you applied for an accessory structure or purchased a property with an existing structure; the structure may not be used for human habitation / sleeping purposes.
Any and all conditions placed at the time of permitting are required to be followed.
All structures must meet and maintain setbacks (including eaves and overhangs) as permitted. If you wish to relocate or move structure; it requires permitting prior to placement.
Note: No pressurized water or plumbing fixtures allowed inside a structure unless said structure is permitted by the Planning and Zoning Office to be connected to a code compliant POWTS/Sanitary System.