W. Va. Code § 8-12-14

The governing body of every municipality has plenary power and authority to require a permit as a condition precedent to the erection, construction, repair or alteration of any structure or of any equipment or part of a structure which is regulated by state law or municipal ordinance: Provided, That no such permits may be required of the state, a county or other governmental entity, its contractors, agents or employees for the erection, construction, repair or alteration of any structure or of any equipment or part of a structure designated for use by the state, a county or other governmental entity.