The two are related but no, they are not the same thing.
A home unit company involves a group of people (directors or members) who own or live in a block of flats or units. The company exists as a body corporate to administer the property. Company title is a scheme of land ownership through which a company (the home unit company) owns the title to the land. Shareholders in the home unit company are entitled to exclusive occupancy of their unit. The owner does not have a title deed but instead they have a Share Certificate representing their ownership of the unit. The building and land would be considered a company title property with the home unit company administering the property.