Historic homes and buildings in Chula Vista abound. Historic homes of Chula Vista features some, including many of the designated sites. A video from Chula Vista’s Centennial in 2011 shows some of their splendor. The City of Chula Vista has a website page dedicated just to pictures of old homes.
Possibly the most wonderful book dedicated to the topic is Historic Chula Vista: Historic Homes and Other Historic Sites compiled in 1997 by the now defunct Chula Vista Historical Society. While you can find a copy in the public libraries, I have scanned a group of 12 homes that highlight the still existing architecture in the South Bay.
But first, here is the book’s first three pages: