Get to downtown LA and take I-5 south to Main St. Turn right (west) onto Main St, then left on Moulton. You can also take I-10 to I-5 north. Exit at Daly Street (Exit #136A, may be posted as Main St.). Turn right onto Daly St, then right onto Main St, then left onto Moulton.
Transit options - see Google Maps.
There is no on-site parking; however, there is free parking on Moulton Ave. Transit or ride hailing services are recommended.