I have submitted a demo plan for a developer who wants to demolish the interior fit-out of a space in an industrial flex building to make it more marketable. The county plans reviewer is refusing to let us demo the vestibule because once the interior fit-out is gone, the space exceeds 3000 sf. His reasoning is that removal of the vestibule would cause a drain on neighboring tenants hvac. Please let me know your thoughts, this seems an odd demand. Obviously if a new tenant goes in the space and requires a vestibule per IECC, that will be addressed then.