Nothing in this subchapter shall prevent any homeowner from installing or maintaining buildings, electrical wiring or plumbing within his own property boundaries, provided the work is done by himself and is used exclusively by him or his family. The privilege does not convey the right to violate any of the provisions of this subchapter, neither is it to be construed as exempting any property owner from obtaining a permit after having work inspected.
(‘88 Code, § 5.115)